Steel

ASTM A 105

Features: widely used steel for structural applications

Use: structural, flanges and other mounting elements, valves and components for pressure systems

Assortment: normally provided in the form of laminated and forged bars.

PERCENTUAL CHEMICAL COMPOSITION

C	Si	Si	Mn	Mn	P	S	Cu	Ni	Cr	Mo	V	Nb	Cu+Ni+ Cr+Mo	Cr+Mo
max	min	max	min	max	max	max	max	max	max	max	max	max	max	max
0,35	0,10	0,35	0,60	1,05	0,035	0,040	0,40	0,40	0,30	0,12	0,08	0,02	1,00	0,32

MECHANICAL FEATURES

Condition	Re min.	Rm min.	A. min.	Z. min.	Hardness HB max.
Condition	250	485	22	30	187

CONDITION OF SUPPLY

Hot laminated

Condition of supply	Dimension from: – to:	Any specific rules
A105 Round laminate	25 – 300	ASTM A 105

ASTM A 350 LF2

Features: steel widely used in the US

Use: realization of structural elements, designed to work in very complex environmental conditions thanks to high resilience values.

Assortment: laminated or forged bars.

PERCENTUAL CHEMICAL COMPOSITION

C	Si	Si	Mn	Mn	P	S	Cu	Ni	Cr	Mo	V	Nb	Cu+Ni+ Cr+Mo	Cr+Mo
max	min	max	min	max	max	max	max	max	max	max	max	max	max	max
0,30	0,15	0,30	0,60	1,35	0,035	0,040	0,40	0,40	0,30	0,12	0,08	0,02	1,00	0,32

MECHANICAL FEATURES

Condition	Re min.	Rm min.	A. min.	Z. min.	KV -46°C min.	HB max
Condition	250	485-655	22	30	20	197

CONDITION OF SUPPLY

Condition of supply	Dimension from: – to:	Any specific rules
A350LF2 Normalized round laminate	60 – 320	ASTM A 350LF2
A350LF2 Normalized round forged	280 e 380	ASTM A 350LF2

FE360 - S235JRC

FE360 – S235JRC

Features: steel of high toughness, excellent workability and weldability, poor mechanical resistance, good heat resistance, good hardness, low resistance to humidity.

Use: suitable for cheap parts of machines and metal structures, generally low stress or non-binding features.

PERCENTUAL CHEMICAL COMPOSITION

C max	C max	C max	Mn	P	S	Si	N
≤ 16 mm	> 16 ≤ 40 mm	> 40 mm	max	max	max	max	max
0,17	0,17	0,20	0,40	0,045	0,045	0,00	0,009

MECHANICAL FEATURES

Thickness mm	Laminated + skived and burnished ( +SH )	Laminated + skived and burnished ( +SH )	Cold drawn ( +C )	Cold drawn ( +C )	Cold drawn ( +C )
Thickness mm	hardness HB	Rm (MPa)	Rp0,2 minimum (MPa)	Rm (MPa)	A5 % minimum
≥5≤10	–	–	355	from 470 to 840	8
>10≤16	–	–	300	from 420 to 770	9
>16≤40	from 102 to 140	from 360 to 510	260	from 390 to 730	10
>40≤63	from 102 to 140	from 360 to 510	235	from 380 to 670	11
>63≤100	da 102 a 140	da 360 a 510	215	da 360 a 640	11

CONDITION OF SUPPLY

Condition of Supply	Dimension from: – to:	Any specific rules
S235JRC Round Drawn Steel	5 – 120	UNI EN 10277-5
S235JRC Flat Drawn Steel	8×4 – 400×30	UNI EN 10277-5
S235JRC Square Drawn Steel	5 – 120	UNI EN 10277-5
S235JRC Hexagonal Drawn Steel	6 – 80	UNI EN 10277-5

FE510D - S355J2

FE510D – S355J2

Features: Structural steel par excellence, with high mechanical strength and excellent resilience suitable for use in extreme conditions and rigid temperatures down to -20 °C.

Use: Suitable for welding is used for the construction of metal structures, construction cranes, machine frames, and so on.

PERCENTUAL CHEMICAL COMPOSITION

C max	C max	C max	Mn	P	S	Si	Cu
≤ 16 mm	> 16 ≤ 40 mm	> 40 mm	max	max	max	max	max
0,20	0,20	0,22	1,60	0,025	0,025	0,55	0,55

MECHANICAL FEATURES

	≤ 3	> 3 ≤ 16	> 16 ≤ 40	> 40 ≤ 63	> 63 ≤ 80	> 80 ≤ 100	> 100 ≤ 150	> 150 ≤ 200	> 200 ≤ 250	> 250 ≤ 400
Yield Point, Reh (MPa) min	355	355	345	335	325	135	295	285	275	265
Tensile Strength Rm(MPa) min	510	470	470	470	470	470	450	450	450	450
Tensile Strength Rm(MPa) max	680	630	630	630	630	630	600	600	600	600
Elongation to A(%) min	22	22	22	21	20	20	18	17	17	17
Resiliency Kv -20°C (J) min	27	27	27	27	27	27	27	27	27	27

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific rules
FE510D Round Laminated	25 – 190	UNI EN 10025

Cold-drawn Steel

Condition of Supply	Dimension from: – to:	Any specific rules
FE510D Round Drawn Steel	25 – 50	UNI EN 10025

C45

Features: Special steel with a good compromise between strength and toughness. Particularly suitable for superficial surfaces with hardness values in the treated areas of about 57 HRC after extending at 180° C.
Mostly destined for the reclamation treatment used in the mechanical sector.

Use: shafts, cranks, keys, pins, supports, rods, shafts, etc.

PERCENTUAL CHEMICAL COMPOSITION

C	C	Mn	Mn	P	P	S	Cr	Si	Mo	Ni	Cr+Ni+Mo
min	max	min	max	min	max	max	max	max	max	max	max
0,42	0,50	0,50	0,80	–	0,030	0,035	0,40	0,40	0,10	0,40	0,63

MECHANICAL FEATURES

Condition	Saggio Ø mm.	Re min.	Rm	A. min.	KCU min.	Hardness HB
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J	Hardness in the following conditions
Quenched Steel	16	510	730-870	14	20	Ricotto lavorabile / Soft-annealed ≤ 235
Quenched Steel	16-40	460	690-830	15	17,5	Ricotto isotermico / Isothermal-annealed 163 – 217
Quenched Steel	40-100	410	640-780	16	15	Ricotto sferoidale /Spheroidal annealed 163 – 217
Normalized Steel	16-100	335	590-740	17

CONDITION OF SUPPLY

Hot Laminated

Condition of Supply	Dimension from: – to:	Any specific rules
C45 Cesoiable Billet	40-100	UNI EN 10083-2
C45 Round Laminated	10-330	UNI EN 10083-2
C45 Flat Laminated	30×20-500×100	UNI EN 10083-2
C45 Square Laminated	20-170	UNI EN 10083-2
C45 Round Lamiated Quenched	20-300	UNI EN 10083-2
C45 Round Forged Turned	280-800	UNI EN 10083-2
C45 Square Forged Turned	170-500	UNI EN 10083-2

Cold Drawn Steel

Condition of supply	Dimension from: – to:	Any specific rules
C45 Round Drawn Steel	5 – 120	UNI EN 10277-5
C45 Flat Drawn Steel	25×10 – 120×20	UNI EN 10277-5
C45 Square Drawn Steel	8-100	UNI EN 10277-5
C45 Hexagonal Drawn Steel	10-80	UNI EN 10277-5
C45 Hexagonal Drawn Steel	6-120	UNI EN 10277-5

42CRMO4

Features: Steel with good hardenability, not sensitive to overheating and not subject to brittle tempering. It is the most widely used reclamation steel for good resistance, forgeability and machinability to machine tools. It is suitable for all hot applications up to a temperature of 500 °C. It can also be surface hardened or nitrated to increase wear and fatigue resistance for workpieces that are not subject to too high specific pressures.

Use: suitable for gears, shafts and tie rods.

PERCENTUAL CHEMICAL COMPOSITION

C	C	Mn	Mn	P	S	Cr	Cr	Si	Mo	Mo
min	max	min	max	max	max	min	max	max	min	max
0,38	0,46	0,60	0,90	0,025	0,035	0,90	1,20	0,40	0,15	0,30

MECHANICAL FEATURES

Condition	Saggio Ø mm.	Re min.	Rm	A. min.	KCU min.
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J
Quenched Steel	≤ 16	900	1100-1300	10	30
Hardened and Tempered	16-40	750	100-1200	11	35
Hardened and tempered	40-100	650	900-1100	12	35
Hardened and tempered	100-160	550	800-950	13	35
Hardened and tempered	160-250	500	750-900	14	35

STATE OF SUPPLY

Hot Laminated

State of supply	Dimension from: – to:	Any specific norm
42CRMO4 Round Quenched Laminate	22 – 300	UNI EN 10083-2
42CRMO4 Round Forged Turned Quenched	300 – 500	UNI EN 10083-2
42CRMO4 Natural Flat Laminate	35×25 – 160×63	UNI EN 10083-2
42CRMO4 Natural Square Laminate	32 – 100	UNI EN 10083-2

Cold Processed

State of Supply	Dimension from: – to:	Any Specific Rule
40CRMO4 Round Quenched Peeled	35 – 36	UNI EN 10277-5

39NICRM03

Features: Steel with high mechanical strength, impact, fatigue, excellent hardness, toughness, wear resistance and heat (up to 400 ° C), insensitive to fracture fragility with discrete behavior at temperatures below 0 ° C .
Among the special steels for reclamation is one of the best used. Employed in the automotive, mechanical and aviation industry in general. Suitable for highly stressed parts also dynamically bending, twisting, traction, fatigue and wear, which are non-heat-treated, with a surface hardness similar to that of a cemented layer.

Use: common shafts, transmission, elbow, spindles, crankshafts, connecting rods, rocker arms, transmission gears for large powers, suction valves, hinges, tie rods, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	max	min	max	min	max
0,35	0,43	0,50	0,80	0,025	0,035	0,60	1,00	0,40	0,15	0,25	0,70	1,00

MECHANICAL CHARACTERISTICS

State	Saggio Ø mm.	Re min.	Rm	A. min	KCU min.	Hardness HB
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J	Hardness in the following conditions
Quenched	16	785	980 1180	11	30	Soft-annealed ≤ 240
Hardened and tempered	> 16	735	930 – 1130	11	30	Isothermal annealed 180 – 240
Hardened and tempered	> 40	685	880 – 1080	12
Hardened and tempered	> 100	635	830 – 980	12	30
Hardened and tempered	> 160 – ≤ 250	540	740 – 880	13	30

STATE OF SUPPLY

Hot processed

State of Supply	Dimension from: – to:	Any Specific Rule
39nicrmo3 Round Annealed Laminate	18 – 320	UNI EN 10083-3
39nicrmo3 Round Quenched Laminate	18 – 320	UNI EN 10083-3
39nicrmo3 Round Forged Turned Quenched	290 – 580	UNI EN 10083-3

Cold processed

State of Supply	Dimension from: – to:	Any specific rule
39nicrmo3 Round Drawn Quenched	10 – 40	UNI EN 10277-5
39nicrmo3 Round Quenched Ground	20 – 100	UNI EN 10277-5
39nicrmo3 Round Drawn Annealed	10 – 15	UNI EN 10277-5

16CrNi4

Features: CrNi alloy steel, with reduced temperability, is widely used in the motor industry for its high surface hardness and wear resistance, excellent mechanical and impact strength with heart-toughness, good heat resistance (up to 200 °C), good weldability and machinability in the annealed state. It is suitable for workpieces of small and medium size (up to 40 mm thick) which are rather stressed and subject to strong wear and tear, which are not very deformable during the hardening process.

Use: bushings, pins, gears, differential wings, chain wheels, rollers, pins, details of automatisms, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
0,13	0,18	0,70	1,00	0,035	0,035	0,80	1,10	0,15	0,40	0,00	0,00	0,80	1,10

MECHANICAL CHARACTERISTICS

Stato	Saggio Ø mm.	Re min.	Rm	A. min	KCU min.	Durezze HB allo stato
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J	Hardness in the following conditions
Hardenend and Stress Relieved	11	835	1080 – 1470	9	30	Ricotto lavorabile / Soft-annealed ≤ 225
Hardenend and Stress Relieved	30	590	830 – 1130	10	32,5	Ricotto isotermico / Isothermal-annealed 145 – 207
Hardenend and Stress Relieved	63	540	740 – 980	10	35	Ricotto sferoidale /Spheroidal annealed ≤ 207

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
16CrNi4 Round Laminate	18 – 300	UNI EN 10084

Cold Processed

Condition of Supply	Dimension from: – to:	Any specific norm
16CrNi4 Round Drawn Steel	10 – 12	UNI EN 10277-4

16MnCr5

Features: Steel alloy to MnCr, easily machinable and weldable, suitable for oil hardening. It has low hardenability and therefore can give good core characteristics up to a thickness of about 20mm.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si
min	max	min	max	max	max	min	max	max
0,14	0,19	1,00	1,30	0,035	0,035	0,80	1,10	0,40

MECHANICAL FEATURES

Thickness mm	Annealed softened + peeled rolled hardness HB max	Annealed softened + peeled rolled hardness HB max
≥ 5 ≥ 10	–	260
≥ 10 ≥ 16	–	250
≥ 16 ≥ 40	207	245
≥ 40 ≥ 63	207	240
≥ 63 ≥ 100	207	240

STATE OF SUPPLY

Hot laminated

State of Supply	Dimension from: – to:	Any specific rule
16MNCR5 Round Laminate	48 – 300	UNI EN 10084
16MNCR5 Round Annealed Laminate	20 – 45	UNI EN 10084

Cold processed

State of Supply	Dimension from: – to:	Any specific rule
16MNCR5 Round Drawn	12,3 – 55	UNI EN 10277-4

18NiCrMo5

18NiCrMo5 (17NiCrMo6-4)

Features: NiCrMo-alloyed steel is widely used for wear-resistant parts (gears and sprockets of all types and for the most intense use, camshafts, crankshafts, bushes and pins, molds for materials plastics, cast spatula cylinders, etc.) that require high surface hardness (62 ÷ 64 HRC), good toughness at heart, excellent mechanical properties, minimal deformations to the hardening and have dimensions up to 100mm in thickness. Often, this steel is only used to be hardened and lying in place of reclaiming steels, since it has the same hardness and tensile characteristics as it has a higher tenacity. It is widely used in the production of wear-resistant components

Use: gears, sprockets, bushings, camshafts, etc

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	max	max	min	max	min	max
0,15	0,21	0,60	0,90	0,035	0,035	0,70	1,00	0,15	0,40	0,15	0,25	1,20	1,50

MECHANICAL FEATURES

Condition	Specimen Ø mm.	Re min.	Rm	A. min	KCU min.	Hardness HB at that condition
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J	Hardness in the following conditions
Tempered and stretched	11	980	1230 – 1520	8	30	Soft-annealed ≤ 220
Tempered and stretched	30	735	980 – 1270	9	32,5	Isothermal-annealed 150 – 207
Tempered and stretched	63	635	830 – 1130	10	35	Spheroidal annealed ≤ 185

CONDITION OF SUPPLY

Hot laminate

Condition of supply	Dimension from: – to:	Any specific rule
18NICRMO5 Round Annealed Laminate	18 – 330	UNI EN 10084
18NICRMO5 Round Forged Turned	330 – 500	UNI EN 10084

20MnCr5

Features: Steel alloy to MnCr, easily machinable and weldable, suitable for oil hardening. It has low hardenability and therefore can give good core characteristics up to a thickness of about 40 – 50 mm. It can be modified with the addition of boron which has the function of improving hardenability and above all the toughness of the cemented and hardened layer. It is generally well machinable on machine tools in the normalized state, in the most critical cases it requires isothermal annealing in black and white.

Use: mechanical components such as gears of medium size, joints and axles for the construction of vehicles, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si
min	max	min	max	max	max	min	max	max
0,17	0,22	1,10	1,40	0,035	0,035	1,00	1,30	0,40

MECHANICAL FEATURES

Stato	Saggio Ø mm.	Re min.	Rm	A. min	KCU min.	Durezze HB allo stato
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J	Hardness in the following conditions
Tempered and stretched	11	930	1230 – 1570	7	17,5	Soft-annealed ≤ 220
Tempered and stretched	30	690	930 – 1230	8	20	Isothermal-annealed 150 – 207
Tempered and stretched	63	540	780 – 1080	9	25	Spheroidal annealed ≤ 185

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific rules
20MNCR5 Round Laminate	48 – 300	UNI EN 10084
20MNCR5 Round Annealed Laminate	20 – 45	UNI EN 10084

Cold processed

Condition of Supply	Dimension from: – to:	Any specific rules
20MNCR5 Round Drawn Steel	22 – 46	UNI EN 10277-4

C15

Features: Unalloyed steel suitable for small, very simple pieces, without sharp edges, holes, carvings and without abrupt variations of sections, because due to the reduced hardenability that requires cooling of hardening in water, fractures and deformations can be feared. Due to its reduced hardenability, it is not necessary to collect the Jominy test data. It is a mild carbon steel, easily cold machinable and weldable without any particular precaution.

Use: used for workpieces that require high toughness and low mechanical strength of the heart, such as pins, bushings, pins, spindles, spindles, levers, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
0,12	0,18	0,30	0,80	0,045	0,045	0,00	0,00	0,15	0,35	0,00	0,00	0,00	0,00

MECHANICAL FEATURES

Stato	Saggio Ø mm.	Re min.	Rm	A. min	KCU min.	Durezze HB allo stato
Condition	Specimen Ø mm.	N/mm2	N/mm2	%	J	Hardness in the following conditions
Condition	–	–	≤ 570	–	–	Natural / 190 max.
Condition	–	–	≤ 540	–	–	Normalized / 161 max.
Condition	–	–	390 – 485	–	–	Isothermal annealed 114 – 145
Condition	11	440	740 – 1180	9	22,5	Tempered and stretched

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific rules
C15 Round Laminated	18 – 200	UNI EN 10084

Sezione

48Si7

Features: It is a steel with high elasticity and low hardenability for water hardening. It is particularly suitable for the treatment of isothermal remediation on small pieces with thicknesses ≤ 15mm, or diameters ≤ 22mm, achieving resilience values with the same mechanical strength, much higher than those achievable with conventional reclamation, and a hardness at heart of 52 HRC.

Use: construction of leaf springs, volute springs and discoidal springs for railway wagons; construction of hoppers, hooves, hoes, parts of agricultural machinery and buildings subject to wear, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
0,45	0,52	0,50	0,80	0,025	0,025	–	0,40	1,60	2,00	–	0,10	–	0,40

MECHANICAL FEATURES

Condition	Specimen Ø mm.	Rp. N/mm2	Rp. N/mm2	A. min. %	Hardness in the following conditions
Natural	–	–	–	–	≤ 277
Annealed	–	–	–	–	245 max.
Hardened	10	1300 – 1550	1110	6	–

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
48SI7 Flat Laminated	40×60 – 150×10	UNI EN 10132

100Cr6

Features: Steel of good hardenability up to 30mm thick is widely adopted for the construction of balls, rollers, rolling bearing rings. Wear resistance, compressive strength and non-deformability of hardening. Steel also used for the construction of screws and plasticiser cylinders of moulding and extrusion machines for plastics whose wear depends on the combination of three phenomena: abrasion, corrosion, fatigue.

Use: shafts for electric motors, sealing rings, knives and other details for weighing scales, castings and shoes for textile machines, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	Cr	Cr	Si	Si
min	max	min	max	min	max	min	max
0,95	1,10	0,25	0,45	1,40	1,60	0,15	0,35

MECHANICAL FEATURES

Specimen Ø mm.	After Hardening	After Stress Relieving	Spheroidal Annealed	Drawn Spheroidal Annealed
25	≥64	≥63	≤207	≤241

CONDITION OF SUPPLY

Hot Laminate

Condition of Supply	Dimension from: – to:	Any specific norm
100CR6 Round Annealed Laminated	25 – 220	UNI EN 3097

100CrMo7

Features: Hardened steel with a high degree of hardening for applications similar to 100CR6, but for pieces larger than 130mm, reaches, after high hardening, hardness and good wear resistance.

Use: cylinders for cold rolling mills, sectors for rolling mills of pilgrim step type, straightening rollers, flattening rollers, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	min	max	min	max	min	max	min	max	min	max
0,95	1,10	0,25	0,45	0,025	0,025	1,65	1,95	0,20	0,40	0,30	0,40	0,00	0,00

MECHANICAL FEATURES

Coalescence Annealing	After Hardening	After Hardening and Stress Relieving
HB max. 210	HRC min. 64	HRC min. 62

Isothermal annealing:

Heating at 800 °C with steady state;
Free descent in the oven at 720 °C and stay at temperature for at least 10 hours;
Descent 10 °C/h to 600 °C, then cool in air.
Maximum hardness: 220 HB.

Distensione:

Da eseguirsi dopo le lavorazioni meccaniche e prima del trattamento termico finale.

Salita a 600 ÷ 650 °C con permanenza di 2 ore circa.
Raffreddamento in aria.

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
100CRMO7 Round Laminated	120 – 250	UNI EN 3097

90MnVCr8 KU

Features: It is a non-deformable steel with very high hardness and compressive strength, high wear and abrasion resistance, good toughness, cold cutting capacity, machinability in the annealed state, good heat resistance (up to 200 °C). Suitable for complicated shaped tools. It is not suitable for tools that work at high cutting speeds and are very hot due to its poor heat resistance.

Use: punches for stamping and die-cutting, for elongated moulds with a thickness of ≤ 80 mm due to its limited hardenability, for gauges and standard control instruments, saws, chisels and wood tools, shear blades for the paper industry, circular blades, males, dies, etc..

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
0,85	0,95	1,90	2,10	0,030	0,030	0,20	0,50	0,10	0,40	–	–	–	–

MECHANICAL FEATURES

Condition	Specimen Ø mm.	HB Hardness in the following conditions	HRC
Annealed	–	229 max	–
Hardening and tempering	10	–	60 min

THERMAL TREATMENTS

Isothermal annealing:

heating to 780 °C with stay at temperature from 1/2 hour to 1 hour
free descent into oven at 690 ° C and stay at temperature for at least 6 hours
descent 10 ° C / h up to 650 ° C
cooling in air

Maximum hardness: 220 HB

Annealed HB ≤ 229

Stress relief:
To be performed after mechanical machining and before final heat treatment.

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
90MNVCR8 KU Round Annealed Laminate	10 – 50	UNI EN 2955
90MNVCR8 KU Round Annealed Forged	55 – 280	UNI EN 2955
90MNVCR8 KU Square Annealed Laminate	20 – 40	UNI EN 2955
90MNVCR8 KU Square Forgead Annealed	50 – 60	UNI EN 2955
90MNVCR8 KU Flat Annealed Laminate	25×8 – 60×50	UNI EN 2955
90MNVCR8 KU Flat Forged Annealed	70×15 – 150×30	UNI EN 2955

X205Cr12 KU

Features: It is a non-deformable steel with very high hardness and resistance to wear, abrasion and compression, good heat resistance (up to 200 °C), good workability in the annealed state and resistance to atmospheric corrosion, low flexural strength.

Use: die sets, dies, punches and moulds for drawing and stamping, thread rollers, reamers, cutter bars for cutting sheets up to 4 mm thick, dies cones, moulds for ceramic tiles, wire guide tools, punches for drawing, tools for woodworking, templates, gauges for shaping rollers in general, etc..

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
1,90	2,20	0,15	0,45	0,030	0,030	11,00	12,00	0,10	0,40	–	–	–	–

THERMAL TREATMENTS

Isothermal annealing:

heating at 780 ° C with permanence at temperature from 1/2 hour to 1 hour
free descent in the oven at 690 ° C and permanence at temperature for at least 6 hours
descent 10 ° C / h up to 650 ° C
cooling in the air

Maximum hardness: 220 HB

Annealed HB ≤ 229

Stress relief:
To be performed after mechanical machining and before final heat treatment.

Annealed HB ≤ 240

THERMAL TREATMENTS

Isothermal annealing:

heating at 850 ° C, stay from 1/2 hour to 1 hour;
free descent in the oven at 770 ° C and permanence at a temperature of 10 hours;
descent 10 ° C / h up to 720 ° C;
cooling in air

Maximum hardness: 240 HB

Stress relief:
to be performed after mechanical machining and before final heat treatment.

heating at 650 ÷ 700 ° C with a permanence of 4/6 hours;
cooling in the oven up to 300 ÷ 350 ° C;
cooling in air.

Hardening:

1° pre-heating at 350 ÷ 450 ° C
2° pre-heating at 750 ÷ 850 °C or in a salt bath at 850°;
austenitization at 960 ÷ 1000 ° C;
cooling in fluid oil.

Hardness after hardening: 64 ÷ 65 HRC

Stabilization :

heating and maintenance for at least 2/3 hours in the range 150 ÷ 300 ° C according to the required hardness requirements.

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
X205CR12 KU Round Annealed Laminate	10 – 50	UNI EN 2955
X205CR12 KU Flat Annealed Laminate	30×10 – 70×40	UNI EN 2955
X205CR12 KU Square Annealed Laminate	30×10 – 70×40	UNI EN 2955
X205CR12 KU Round Forged Annealed	55 – 280	UNI EN 2955
X205CR12 KU Flat Forged Annealed	70×10 – 250×50	UNI EN 2955
X205CR12 KU Square Forged Annealed	50 – 100	UNI EN 2955

X17CrNi16 - 2AISI431

X17CrNi16 – 2AISI431

Features: It is a steel with excellent corrosion resistance even in marine atmosphere or in contact with organic acids, alkaline solutions, high pressure steam, etc. The resistance to oxidation is good up to 750 ° C under continuous operating conditions and up to 800 ° C under intermittent operating conditions. The weldability is sufficient with preheating to 300 – 400 ° C. Immediately after welding, do not allow to cool to below 100 ° C and proceed immediately to a tempering at 600-650 ° C with a 2-4 hour permanence, followed by cooling in calm air, oil or water. Machinability with the tool is good.

Use: in the reclaimed state for parts of valves and pumps, underwater tools, nuts and bolts in general, centrifuge bodies for food use, propeller shafts for fresh water, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
0,12	0,22	–	1,50	0,040	0,030	15,00	17,00	–	1,00	–	–	1,50	2,50

MECHANICAL FEATURES

Section mm	Rm N/mm.	Rp N/mm	A%	Kv (J) min	HB max
	950 max	–	–	–	295 +A annealed
< 60	800 – 950	600	14	25	+ QT reclaimed for resistance 800
60 – 160	800 – 950	600	12	20	+ QT reclaimed for resistance 800
< 60	900 – 1050	700	12	20	+ QT reclaimed for resistance 900
60 – 160	900 – 1050	700	10	15	+ QT reclaimed for resistance 900

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
X17CRNI16-2 AISI 431 Round Lam. Peeled Temp.	120 – 300	UNI EN 10088

X30Cr13 - AISI420B

X30Cr13 AISI 420 B

Features: It is a steel with good corrosion resistance. It has the highest corrosion resistance in the hardened and stretched state, with mirror polished surfaces. The resistance to hot oxidation is good up to 650 ° C under continuous operating conditions and up to 750 ° C under intermittent operating conditions. It has particular mechanical characteristics that make it suitable for many uses. The weldability is good with preheating to 200 – 250 ° C. After welding, it is advisable to anneal at 700-750 ° C with a 6-8 hours permanence followed by a cooling in calm air. Machinability with the tool is good.

Use: in the reclaimed state for parts of valves and pumps, cutlery, parts of mining machinery, molds for plastics, surgical and dental instruments, gauges, in the petrochemical, naval, chemical, food, oxidation resistant, spheres, etc.

COMPOSIZIONE CHIMICA PERCENTUALE

C	C	Mn	Mn	P	S	Cr	Cr	Si	Si	Mo	Mo	Ni	Ni
min	max	min	max	max	max	min	max	min	max	min	max	min	max
0,26	0,35	–	1,50	0,040	0,030	12,00	14,00	–	1,00	–	–	–	–

MECHANICAL FEATURES

Section mm	Specify Ø mm.	Rp N/mm2	Rm N/mm2	A min. %	Hardness HB	KV(J) min.
Stabilization	160	650	850 – 1000	10	–	15
Annealed	–	–	max 800	–	245	–

CONDITION OF SUPPLY

Hot Laminated

Condition of Supply	Dimension from: – to:	Any specific norm
X30CR13 Lam.Peeled Temp. Round	10 – 350	UNI EN 10088

X2CrNi19-11 AISI 304 L

Features: It is a steel with good resistance to corrosion in the solubilized state, not subject to inter-crystalline corrosion if and therefore suitable for welded constructions. The resistance to hot oxidation is good up to 850 ° C under continuous operating conditions and up to 800 ° C under intermittent operating conditions. Excellent cold plastic forming and the feasibility and good workability to the tool.

Use: architectural decorations, equipment for chemical, petrochemical, food, pharmaceutical, paper, textile industries, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	Si	Cr	Cr	S	S	N	N	Ni	Ni	N
min	max	min	max	max	max	min	max	min	max	min	max	min	max	max
–	0,030	–	2,00	0,045	1,00	18,00	20,00	–	0,030	–	0,11	10,00	12,00	0,11

MECHANICAL FEATURES

Section mm	Rm N/mm	Rp N/mm	A%	Kv (J) min
≤ 10	600 – 930	400	25	–
> 10 ≤ 16	600 – 930	380	25	–
> 16 ≤ 40	500 – 830	175	30	100
> 40 ≤ 63	500 – 830	175	30	100
> 63 ≤ 100	500 – 700	175	45	100

CONDITION OF SUPPLY

Hot laminated

Condition of Supply	Dimension from: – to:	Any specific norm
AISI 304L Round Laminate	8 – 100	UNI EN 10088
AISI 304L Flat Laminate	15×5 – 150×30	UNI EN 10088
AISI 304L Square Laminate	15 – 100	UNI EN 10088
AISI 304L Hexagon Laminate	6 – 63	UNI EN 10088
AISI 304L Sheared	15×4 – 60×8	UNI EN 10088
AISI 304L Rund Forged	105 – 400	UNI EN 10088
AISI 304L Angular	20x20x3 – 80x80x8	UNI EN 10088

Cold Processed

Condition of Supply	Dimension from: – to:	Any Specific Norm
AISI 304L Round Drawn h11	3-100	UNI EN 10088
AISI 304L Hexagonal Drawn h11	8-50	UNI EN 10088
AISI 304L Round Ground	3-60	UNI EN 10088

X2CrNiMo17-12-2 AISI 316 L

Features: It is a steel with excellent resistance to stress corrosion, insensitive to inter-crystalline corrosion and punctiform corrosion. The latter is a localised corrosion which, under the action of a corrosive agent, in particular solutions containing iodine, bromine and chlorine ions (the latter being the least aggressive), causes small pitting that can cause rapid perforation of the material. The weldability is excellent and does not require any treatment after welding.

Use: architectural decorations, equipment for chemical, petrochemical, food, pharmaceutical, paper, textile, etc. industries.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	Si	Cr	Cr	S	S	N	N	Ni	Ni	N	Mo
min	max	min	max	max	max	min	max	min	max	min	max	min	max	max	min max
–	0,030	–	2,00	0,045	1,00	16,50	18,50	–	0,030	–	0,11	10,00	13,00	0,11	2,00 – 2,50

MECHANICAL FEATURES

Section mm	Rm N/mm	Rp N/mm	A%	Kv (J) min
≤ 10	600 – 930	400	25	–
> 10 ≤ 16	580 – 930	380	25	–
> 16 ≤ 40	500 – 830	200	30	100
> 40 ≤ 63	500 – 830	200	30	100
> 63 ≤ 100	500 – 700	200	40	100

CONDITION OF SUPPLY

Hot Laminate

Condition of Supply	Dimension from: – to:	Any specific norm
AISI 316L Round Laminate	13 – 100	UNI EN 10088
AISI 316L Flat Laminate	15×6 – 100×30	UNI EN 10088
AISI 316L Square Laminate	18 – 50	UNI EN 10088
AISI 316L Round Forged	105 – 280	UNI EN 10088

X5CrNi18-10 AISI 316

Features: It is a steel with excellent resistance to corrosion in the solubilized state, not very resistant to inter-crystalline corrosion. The resistance to hot oxidation is good up to 850 ° C under continuous operating conditions and up to 800 ° C under intermittent operating conditions. Excellent cold plastic forming and feasibility and good tooling.

Use: employed in the chemical, textile, dyeing, tanning, paper, naval, aeronautical, motor, food, etc. industries.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	Si	Cr	Cr	S	S	N	N	Ni	Ni	N	Mo
min	max	min	max	max	max	min	max	min	max	min	max	min	max	max	min max
–	0,07	–	2,00	0,045	1,00	16,50	18,50	–	0,030	–	0,11	10,00	13,00,	0,11	2,00 – 2,50

MECHANICAL FEATURES

Section mm	Rm N/mm	Rp N/mm	A%	Kv (J) min
≤ 10	600 – 950	400	25	–
> 10 ≤ 16	580 – 950	380	25	–
> 16 ≤ 40	500 – 850	200	30	100
> 40 ≤ 63	500 – 850	200	30	100
> 63 ≤ 100	500 – 700	200	40	100

CONDITION OF SUPPLY

Hot Laminated

Condition of Supply	Dimension from: – to:	Any specific norm
AISI 316 Round Laminate	13 – 100	UNI EN 10088
AISI 316 Flat Laminate	15×6 – 100×30	UNI EN 10088
AISI 316 Square Laminate	18 – 50	UNI EN 10088
AISI 316 Round Forged	105 – 280	UNI EN 10088

X5CrNi18-10 AISI 304

Features: It is a steel with good resistance to the solubilized state, little sensitive to the inter-crystalline corrosion if you avoid heating or slow cooling in the temperature range from 450 to 900 ° C. The resistance to hot corrosion is good up to 850 ° C under continuous operating conditions and up to 800 ° C under intermittent operating conditions. Excellent cold plastic forming and feasibility and good tooling.

Use: employed in the chemical, pharmaceutical, food, paper, petrochemical industries, etc.

CHEMICAL COMPOSITION PERCENTAGE

C	C	Mn	Mn	P	Si	Cr	Cr	S	S	N	N	Ni	Ni	N
min	max	min	max	max	max	min	max	min	max	min	max	min	max	max
–	0,07	–	2,00	0,045	1,00	18,00	20,00	–	0,030	–	0,11	8,00	10,05	0,11

MECHANICAL FEATURES

Section mm	Rm N/mm	Rp N/mm	A%	Kv (J) min
≤ 10	600 – 950	400	25	–
> 10 ≤ 16	600 – 950	400	25	–
> 16 ≤ 40	500 – 850	190	30	100
> 40 ≤ 63	500 – 850	190	30	100
> 63 ≤ 100	500 – 700	190	45	100

CONDITION OF SUPPLY

Hot Laminated

Codition of Supply	Dimension from: – to:	Any Specific Norm
AISI 304 Round Laminate	8 – 100	UNI EN 10088
AISI 304 Flat Laminate	15×5 – 150×30	UNI EN 10088
AISI 304 Square Laminate	15 – 100	UNI EN 10088
AISI 304 Hexagonal Laminate	6 – 63	UNI EN 10088
AISI 304 Sheared	15×4 – 60×8	UNI EN 10088
AISI 304 Round Forged	105 – 400	UNI EN 10088
AISI 304 Angular	20x20x3 – 80x80x8	UNI EN 10088

Cold Processed

Condition of Supply	Dimension from: – to:	Any specific norm
AISI 304 Round Drawn h11	3 – 100	UNI EN 10088
AISI 304 Hexagonal Drawn h11	8 – 50	UNI EN 10088
AISI 304 Round Ground Steel	3 – 60	UNI EN 10088

11SMN37

Features: special steel designed to be used for high speed machining thanks to the high workability index. Final use must not require high mechanical strength. Due to its high sulfur and phosphorus content, this type of steel is not intended for heat treatment or even recommended for welding.

Use: the main field of use remains the production of small parts, machined or turned parts with chip removal.

CHEMICAL COMPOSITION PERCENTAGE

C	Mn	Mn	P	S	S	Si
max	min	max	max	min	max	max
0,14	1,00	1,50	0,11	0,34	0,40	0,05

MECHANICAL FEATURES

Section mm	Laminate + peeled rolled Hardness HB	Laminate + peeled rolled Rm	Cold processed Rp min.	Cold processed Rm	Cold processed A% min.
≥ 5 ≤ 10	–	–	440	from 510 to 810	6
≥ 10 ≤ 16	–	–	410	from 490 to 760	7
≥ 16 ≤ 40	from 112 to 169	from 380 to 570	375	from 460 to 710	8
≥ 40 ≤ 63	from 112 to 169	from 370 to 570	305	from 400 to 650	9
≥ 63 ≤ 100	from 107 to 154	from 360 to 520	245	from 360 to 630	9

CONDITION OF SUPPLY

Cold processed

Condition of Supply	Dimension from: – to:	Any specific norm
11SMN37 Drawn – Round Peeled H9	8.1 – 120	UNI EN 10277-3

11SMNPB37

Features: special steel designed to be used for high-speed machining thanks to the high workability index. Final use must not require high mechanical strength. Due to its high sulfur and phosphorus content, this type of steel is not intended for heat treatment or even recommended for welding. The addition of lead allows high cutting speeds to be adopted.

Use: the field of use is the production of small parts, machined or turned parts with chip removal.

CHEMICAL COMPOSITION PERCENTAGE

C	Mn	Mn	P	S	S	Si	Pb	Pb
max	min	max	max	min	max	max	min	max
0,14	1,00	1,50	0,11	0,34	0,40	0,05	0,20	0,35

MECHANICAL FEATURES

Section mm	Laminate + Peeled rolled Hardness HB	Laminate + Peeled rolled Rm	Cold processed Rp min.	Cold processed Rm	Cold processed A% min.
≥ 5 ≤ 10	–	–	440	from 510 to 810	6
≥ 10 ≤ 16	–	–	410	from 490 to 760	7
≥ 16 ≤ 40	from 112 to 169	from 380 to 570	375	from 460 to 710	8
≥ 40 ≤ 63	from 112 to 169	from 370 to 570	305	from 400 to 650	9
≥ 63 ≤ 100	from 107 to 154	from 360 to 520	245	from 360 to 630	9

CONDITION OF SUPPLY

Cold processed

Condition of Supply	Dimension from: – to:	Any specific norm
11SMNPB37 Drawn – Peeled H9 Round	8 – 120	UNI EN 10277-5
11SMNPB37 Drawn Hexagonal	4,5 – 80	UNI EN 10277-5

35SMNPB10 - 36SMNPB14

35SMNPB10 – 36SMNPB14

Features: tempered steel with medium carbon, with a high content of manganese and risolforate. It possesses acceptable hardenability, although not in line with the Mn content, which is largely precipitated as MnS. The high S content reduces weldability due to the high risk of hot cracks. It is available in drawn bars for the manufacture of mechanical components, also through heavy machining to machine tools with chip removal, due to the good workability.

Use: intended for high-speed machining and reclamation treatment.

CHEMICAL COMPOSITION PERCENTAGE

C	Mn	Mn	P	S	S	Si	Pb	Pb
min – max	min	max	max	min	max	max	min	max
0,29 – 0,42	1,24	1,76	0,068	0,07	0,21	0,43	0,13	0,38

MECHANICAL FEATURES

Thickness mm	Tempered e Drawn Hardness HB	Tempered e Drawn Rm	Tempered e Drawn Rp min.	HB
5 ≤ Ø ≤ 10	670	800 – 1000	8	240 – 300
10 < Ø ≤ 25	650	780 – 980	10	235 – 295
25 < Ø ≤ 40	630	760 – 960	11	230 – 290
40 < Ø ≤ 100	600	750 – 940	11	225 – 285

CONDITION OF SUPPLY

Cold Processed

Condition of Supply	Dimension from: – to:	Any specific norm
35SMNPB10 Round Drawn	3 – 90	UNI EN 10087
35SMNPB10 Hexagonal Drawn	10 – 60	UNI EN 10087

Construction steels

ASTM A 105

ASTM A 105

PERCENTUAL CHEMICAL COMPOSITION

MECHANICAL FEATURES

CONDITION OF SUPPLY

Hot laminated

ASTM A 350 LF2

ASTM A 350 LF2

PERCENTUAL CHEMICAL COMPOSITION

MECHANICAL FEATURES

CONDITION OF SUPPLY

FE360 - S235JRC

FE360 – S235JRC

PERCENTUAL CHEMICAL COMPOSITION

MECHANICAL FEATURES

CONDITION OF SUPPLY

FE510D - S355J2

FE510D – S355J2

PERCENTUAL CHEMICAL COMPOSITION

MECHANICAL FEATURES

CONDITION OF SUPPLY

Hot laminated

Cold-drawn Steel

Quenched and Tempered Steels

C45

C45

PERCENTUAL CHEMICAL COMPOSITION

MECHANICAL FEATURES

CONDITION OF SUPPLY

Hot Laminated

Cold Drawn Steel

42CRMO4

42CRMO4

PERCENTUAL CHEMICAL COMPOSITION

MECHANICAL FEATURES

STATE OF SUPPLY

Hot Laminated

Cold Processed

39NICRM03

39NICRM03

CHEMICAL COMPOSITION PERCENTAGE

MECHANICAL CHARACTERISTICS

STATE OF SUPPLY

Hot processed

Cold processed

Cementing steels

16CrNi4

16CrNi4

CHEMICAL COMPOSITION PERCENTAGE

MECHANICAL CHARACTERISTICS

CONDITION OF SUPPLY

Hot laminated

Cold Processed

16MnCr5

16MnCr5

CHEMICAL COMPOSITION PERCENTAGE

MECHANICAL FEATURES

STATE OF SUPPLY

Hot laminated

Cold processed

18NiCrMo5

18NiCrMo5 (17NiCrMo6-4)

CHEMICAL COMPOSITION PERCENTAGE

MECHANICAL FEATURES

CONDITION OF SUPPLY

Hot laminate

20MnCr5

20MnCr5

CHEMICAL COMPOSITION PERCENTAGE

MECHANICAL FEATURES

CONDITION OF SUPPLY

Hot laminated

Cold processed

C15

C15

CHEMICAL COMPOSITION PERCENTAGE

MECHANICAL FEATURES

CONDITION OF SUPPLY