Materials: Steel

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Steel is the name given to an alloy composed mainly of iron and carbon, the latter not exceeding 2.11%.

Thanks to its experience, UFG srl offers its clients a wide range of materials, always up to date with the needs and the market offers.

Our steel product range includes all of the main special and stainless steel grades, thanks to which we are able to meet all our customers’ requirements in terms of planning and processing.

Types

UFG is able to supply the majority of steels:

Construction steels

ASTM A 105

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

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

Quenched and Tempered Steels

C45

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

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

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

Cementing steels

16CrNi4

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

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

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

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

Spring steels

48Si7

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

Roller Bearing Steels

100Cr6

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

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

Tool steels

90MnVCr8 KU

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

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

Stainless steels

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

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

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

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

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

Free-cutting steel

11SMN37

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

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

** I titoli e i dati forniti nelle tabelle sono solo a titolo indicativo e non implicano alcuna responsabilità da parte della UFG srl.

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Thermoplastic polymers are polymers formed by linear or slightly branched chains, not tied together with each other; it is therefore sufficient to increase the temperature to bring them to a viscous state and thus form them.

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