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Stainless Steel

EN 10088 General applications

EN 10151 for springs
Symbol classification Numerical European Standard (EN) Equivalent Chemical Composition
General Applications For springs AISI C Si Mn P S N Cr Cu Mo Nb Ni Ti Others
X2CrTi12 1.4512 EN 10088-2 - 409 ≤ 0.03  ≤ 1 ≤ 1 ≤ 0.04 ≤ 0.015 - 10.50 - 12.50 - - - - 6x(C+N) - 0.65 -
X6Cr17 1.4016 EN 10088-2 EN 10151 430 ≤ 0.08 ≤ 1 ≤ 1 ≤ 0.04 ≤ 0.015 - 16.00 - 18.00 - - - - - -
X2CrTiNb18 1.4509 EN 10088-2 - 441 ≤ 0.03 ≤ 1 ≤ 1 ≤ 0.04 ≤ 0.015 - 17.50 - 18.50 - - 3xC+0.30≤Nb≤1.00 - 0.10 - 0.60 -
X30Cr13 1.4028 EN 10088-2 EN 10151 420 0.26-0.35 ≤ 1 ≤ 1.5 ≤ 0.04 ≤ 0.015 - 12.00 - 14.00 - - - - - -
X7CrNiAl17-7 1.4568 EN 10088-2 EN 10151 631 ≤ 0.09 ≤ 0.7 ≤ 1 ≤ 0.04 ≤ 0.015 - 16.00 - 18.00 - - - 6.50 - 7.80 - Al: 0.70 - 1.50
X10CrNi18-8 1.4310 EN 10088-2 EN 10151 301 0.05 - 0.15 ≤ 2.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 ≤ 0.11 16.00 - 19.00 - ≤ 0.80 - 6.00 - 9.50 - -
X10CrNi18-8 1.4310 Mo EN 10088-2 EN 10151 301Mo 0.05 - 0.15 ≤ 2.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 ≤ 0.11 16.00 - 19.00 - ≤ 0.80 1) - 6.00 - 9.50 - -
X2CrNi18-9 1.4307 EN 10088-2 - 304L ≤ 0.030 ≤ 1.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 ≤ 0.11 17.50 - 19.50 - - - 8.00 - 10.00 - -
X5CrNi18-10 1.4301 EN 10088-2 EN 10151 304 ≤ 0.07 ≤ 1.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 ≤ 0.11 17.00 - 19.50 - - - 8.00 - 10.50 - -
X6CrNiTi18-10 1.4541 EN 10088-2 - 321 ≤ 0.08 ≤ 1.00 ≤ 2.00 0.045 ≤ 0.015 - 17.00 - 19.50 - - - 9.00 - 12.00 5xC - 0.70 -
X5CrNiMo17-12-2 1.4401 EN 10088-2 - 316 ≤ 0.070 ≤ 1.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 ≤ 0.11 16.50 - 18.50 - 2.00 - 2.50 - 10.00 - 13.00 - -
X5CrNiMoTi17-12 -2 1.4571 EN 10088-2 - 316Ti ≤ 0.08 ≤ 1.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 - 16.50 - 18.50 - 2.00 - 2.50 - 10.50 - 13.50 5xC - 0.70 -
X2CrNiMo17-12-2 1.4404 EN 10088-2 EN 10151 316L ≤ 0.030 ≤ 1.00 ≤ 2.00 ≤ 0.045 ≤ 0.015 ≤ 0.11 16.50 - 18.50 - 2.00 - 2.50 - 10.00 - 13.00 - -
X12CrMnNiN17-7-5 1.4372 EN 10088-2 EN 10151 201 ≤ 0.15 ≤ 1.00 5.50 - 7.50 ≤ 0.045 ≤ 0.015 0.05 - 0.25 16.00 - 18.00 - - - 3.50 - 5.50 - -
X12CrMnNiN18-9-5 1.4373 EN 10088-2 - 202 ≤ 0.15 ≤ 1.00 7.50 - 10.50 ≤ 0.045 ≤ 0.015 0.05 - 0.25 17.00 - 19.00 - - - 4.00 - 6.00 - -
X2CrMoTi18-2 1.4521 EN 10088 - 444 ≤  0.025 ≤ 1 ≤ 1 ≤ 0.04 ≤ 0.015 - 17.00 - 20.00 - 1.80 - 2.50 - - - -
X8CrNi25-21 1.4845 EN 10095 - 310S ≤ 0.1 ≤ 1.5 ≤ 2 ≤ 0.045 ≤ 0.015 - 24.00 - 26.00 - - - 19.00 - 22.00 - -

X2CrMoTi18-2 1.4521 and X8CrNi25-21 1.4845 available under a commercial agreement. 

1) Min to be agreed. Max ≤ 0.80

Symbol classification Numerical classification European Standard (EN) Approximate international equivalents
US (AISI) Japan (JIS) China (GB)
X2CrTi12 1.4512 EN 10088-2 409 SUS409L -
X6Cr17 1.4016 EN 10088-2 430 SUS430 10Cr17
X2CrTiNb18 1.4509 EN 10088-2 441 - -
X30Cr13 1.4028 EN 10088-2 420 SUS420J1 20Cr13
X7CrNiAl17-7 1.4568 EN 10088-2 631 SUS 631 0Cr17Ni7Al
X10CrNi18-8 1.4310 EN 10088-2 301 SUS 301 1Cr17Ni7
X10CrNi18-8 1.4310 Mo EN 10088-2 301Mo - -
X2CrNi18-9 1.4307 EN 10088-2 304L SUS304L -
X5CrNi18-10 1.4301 EN 10088-2 304 SUS 304 0Cr19Ni9
X6CrNiTi18-10 1.4541 EN 10088-2 321 SUS321 0Cr18Ni10Ti 1Cr18Ni11Ti H0Cr20Ni10Ti
X5CrNiMo17-12-2 1.4401 EN 10088-2 316 SUS 316 6Cr17Ni12Mo2
X5CrNiMoTi17-12 -2 1.4571 EN 10088-2 316Ti SUS316Ti 0Cr18Ni12Mo2Ti 1Cr18Ni12Mo2Ti
X2CrNiMo17-12-2 1.4404 EN 10088-2 316L SUS316L 0Cr18Ni12Mo2Ti 1Cr18Ni12Mo2Ti
X12CrMnNiN17-7 -5 1.4372 EN 10088-2 201 SUS201 -
X12CrMnNiN18-9 -5 1.4373 EN 10088-2 202 SUS202 -
X2CrMoTi18-2 1.4521 EN 10088 444 - -
X8CrNi25-21 1.4845 EN 10095 310S SUS310S 1Cr25Ni20Si2

X2CrMoTi18-2 1.4521 and X8CrNi25-21 1.4845 available under a commercial agreement. 

EN 10088-2 annealed state/ EN 10151 hardened state

Martensitic steels

Steel designation         Yield strength Rp0.2   Elongation at break
Symbol classification Numerical classification US (AISI) State Hardness N/mm² min. (leng.) N/mm² min. (tens.) Tensile strength Rm N/mm² A80 mm < 3 mm thick % min (leng. + tens.) A ≥ 3 mm thick % min. (leng. + tens.)
      Annealed - - 235 HV max. - - 740 max. 15 15
X30Cr13 1.4028 420 Hardened by cold rolling +C700 - 270-320 HV - - 700 - 850 - -
        +C850 1/4 Hard   - - 850 - 1000 - -

 

Ferritic steels

Steel designation         Yield strength Rp0.2   Elongation at break
Symbol classification Numerical classification US (AISI) State Hardness N/mm² min. (leng.) N/mm² min. (tens.) Tensile strength Rm N/mm² A80 mm < 3 mm thick % min (leng. + tens.) A ≥ 3 mm thick % min. (leng. + tens.)
Standardised Types:                      
X2CrTi12 1.4512 409  Annealed - - - 210 220 380 - 560 25 25
      Annealed - - - 240 260 430 - 630 18 20
X6Cr17 1.4016 430  Hardened by cold rolling +C700   200 - 300 HV - - 700 - 850 2 -
        +C850 1/4 Hard   - - 850 - 1000 1 -
X2CrMoTi18-2 1.4521 444  Annealed - - - 300 320 420 - 640 20 20
Special types:                      
X2CrTiNb18 1.4509 441  Annealed - - - 230 250 430 - 630 18 18

 

AUSTENITIC STEEL 

Steel designation       Hardness Yield strength Rp0.2 Tensile strength Rm N/mm² Elongation at break
Symbol classification Numerical classification US (AISI) State N/mm² min. (leng.) N/mm² min. (tens.) A80 mm < 3 mm thick % min (leng. + tens.) A ≥ 3 mm thick % min. (leng. + tens.)
Standardised Types:                      
      Annealed - - - 250 280 600 - 950 40 40
        +C850 1/4 Hard   - - 850 - 1000 25 25
        +C1000 1/2 Hard   - - 1000 - 1150 20 20
        +C1150 3/4 Hard   - - 1150 - 1300 15 15
X10CrNi18-8 1.4310 301 301Mo Hardened by cold rolling +C1300 4/4 Hard 250 - 600 HV - - 1300 - 1500 10 10
        +C1500 5/4 Hard   - - 1500 - 1700 5 5
        +C1700 K1   - - 1700 - 1900 2 2
        +C1900 K2   - - 1900 - 2200 1 1
        +C2100 under request            
X2CrNi18-9 1.4307 304L Annealed - - - 220 250 520 - 700 45 45
      Annealed - - - 230 260 540 - 750 45 45
        +C700 -   - - 700-850 25 25
X5CrNi18-10 1.4301 304   +C850 1/4 Hard   - - 850-1000 12 12
      Hardened by cold rolling +C1000 1/2 Hard 220 - 450 HV - - 1000-1150 5 5
        +C1150 3/4 Hard   - - 1150-1300 3 3
        +C1300 4/4 Hard   - - 1300-1500 1 1
X6CrNiTi18-10 1.4541 321 Annealed - - - 220 250 520-720 40 40
X2CrNiMo17-12-2 1.4404 316L Annealed - - - 240 270 530 - 680 40 40
X6CrNiMoTi17-12 -2 1.4571 316Ti Annealed - - - 240 270 540 - 690 40 40
      Annealed - - - 240 270 530 - 680 40 40
        +C700 - - - - 700 - 850 20 20
X5CrNiMo17-12-2 14401 316   +C850 1/4 Hard   - - 850 - 1000 10 10
      Hardened by cold rolling +C1000 1/2 Hard 220 - 400 HV - - 1000 - 1150 4 4
        +C1150 3/4 Hard   - - 1150 - 1300 1 1
        +C1300 4/4 Hard   - - 1300 - 1500 - -
Special types:                      
      Annealed - - - 350 380 680 - 880 45 45
        +C850 1/4 Hard   - - 850 - 1000 25 25
X12CrMnNiN17-7 -5 1.4372 201   +C1000 1/2 Hard   - - 1000 - 1150 13 13
      Hardened by cold rolling +C1150 3/4 Hard 200 - 500 HV - - 1150 - 1300 5 5
        +C1300 4/4 Hard   - - 1300 - 1500 2 2
        +C1500 5/4 Hard   - - 1300 - 1500 1 1
X12CrMnNiN18-9 -5 1.4373 202 Annealed - - - 340 370 680 - 880 45 45

 

PRECIPITATION-HARDENED STEEL 

Steel designation       Hardness Yield strength Rp0.2 Tensile strength Rm N/mm² Elongation at break
Symbol classification Numerical classification US (AISI) State N/mm² min. (leng.) N/mm² min. (tens.) A80 mm < 3 mm thick % min (leng. + tens.) A ≥ 3 mm thick % min. (leng. + tens.)
      Annealed - - - - - ≤ 1030 19 19
        +C1000 1/2 Hard 300 - 520 HV 1) - - 1000 - 1150 - -
X7CrNiAl17-7 1.4568 631   +C1150 3/4 Hard - - 1150 - 1300 - -
      Hardened by cold rolling +C1300 4/4 Hard - - 1300 - 1500 - -
        +C1500 5/4 Hard - - 1500 - 1700 - -
        +C1700 K1 - - 1700 - 1900 - -

1) Approximate value. 

REFRACTORY STAINLESS STEEL 

Steel designation       Hardness Yield strength Rp0.8 Tensile strength Rm N/mm² Elongation at break
Symbol classification Numerical classification US (AISI) State N/mm² min. (leng.) N/mm² min. (tens.) A80 mm < 3 mm thick % min (leng. + tens.) A ≥ 3 mm thick % min. (leng. + tens.)
X8CrNi25-21 1.4845 310S Annealed - - 192 HB max. 210 - 500 - 700 33 -

X2CrMoTi18-2 1.4521 and X8CrNi25-21 1.4845 available under a commercial agreement. 

 

Charts for guidance purposes for STABILISATION (TEMPERING) CONDITIONS

TYPE OF PROCESS ROUTE AND SURFACE FINISH OF PLATES AND COILS EN 10088-2 1)

COLD ROLLING
Abbreviation Type of process route Surface finish Remarks AISI
2H Hardened by cold forming Bright Hardened by cold forming, to obtain the highest level of mechanical strength. TR
2D Cold-rolled, heat treated, pickled Smooth Finish with good ductility, but not as smooth as 2B or 2R. 2D
2B Cold-rolled, heat treated, pickled and skin passed Smoother than 2D Normal finish for most steels. Ensures good corrosion resistance, smoothness and flatness. Also common for subsequent processes. Skin passing can be replaced by tension levelling. 2B
2R Cold-rolled, bright annealed Smooth, bright and reflective Smoother and brighter finish than 2B. Also common for subsequent processing. BA
2G Ground   Can be specified based on the grain size of the grinding wheel or surface roughness. It has a unidirectional texture, not very reflective. 3
2J Brushed or polished matt Smother than when ground 1) The brushing grade, type of abrasive belt and surface roughness can be specified. It has a unidirectional texture, not very reflective. 6
1D Hot rolled, heat treated, pickled Free of scale Normal finish for most steels in order to ensure good corrosion resistance; A finish that is also common for products that are going to undergo subsequent processing. Grinding marks permitted. Coarser finish than 2D or 2B. 1
2E Cold-rolled, heat treated, mechanically descaled Rough and matt Generally applied to steel with pickling-resistant scale. Can be followed by pickling. 1
2K Gloss polished 1) Additional specific requirements to a "J" type finish, in order to achieve adequate corrosion resistance in marine environments and for external architectural applications. They are finishes with a transverse roughness of Ra<0.5µm and with a clean surface appearance. 4

1) Within the description of each finish, the properties may vary and further details may be necessary to correctly specify the desired finish (for example, the abrasive grain or surface roughness).

Tinned or nickel plated strips can be supplied under a commercial agreement.

 

AVERAGE SURFACE ROUGHNESS EN 10151:2002

The quality of the surface of a strip is characterised by the following approximate average surface roughness values:
  • Ra < 0.3 µm for tensile strength levels of +C1150 and above.
  • Ra < 0.5 µm for tensile strength levels ranging from +C700 to +C1000.

THICKNESS TOLERANCES

A) Thickness tolerances specified for cold-rolled strips and strips in cut lengths obtained from precision strips.
Specified thickness t Thickness tolerance specified according to EN ISO 9445 for a nominal width of
w < 125 125 ≤ w < 250 250  ≤ w < 600
Normal Fine (F) Precision (P) Normal Fine (F) Precision (P) Normal Fine (F) Precision (P)
0.05 ≤ t < 0.10 ± 0.10 t ± 0.06 t ± 0.04 t ± 0.12 t ± 0.10 t ± 0.08 t ± 0.15 t ± 0.10 t ± 0.08 t
0.10 ≤ t < 0.15 ± 0.010 ± 0.008 ± 0.006 ± 0.015 ± 0.012 ± 0.008 ± 0.020 ± 0.015 ± 0.010
0.15 ≤ t < 0.20 ± 0.015 ± 0.010 ± 0.008 ± 0.020 ± 0.012 ± 0.010 ± 0.025 ± 0.015 ± 0.012
0.20 ≤ t < 0.25 ± 0.015 ± 0.012 ± 0.008 ± 0.020 ± 0.015 ± 0.010 ± 0.025 ± 0.020 ± 0.012
0.25 ≤ t < 0.30 ± 0.017 ± 0.012 ± 0.009 ± 0.025 ± 0.015 ± 0.012 ± 0.030 ± 0.020 ± 0.015
0.30 ≤ t < 0.40 ± 0.020 ± 0.015 ± 0.010 ± 0.025 ± 0.020 ± 0.012 ± 0.030 ± 0.025 ± 0.015
0.40 ≤ t < 0.50 ± 0.025 ± 0.020 ± 0.012 ± 0.030 ± 0.020 ± 0.015 ± 0.035 ± 0.025 ± 0.018
0.50 ≤ t < 0.60 ± 0.030 ± 0.020 ± 0.014 ± 0.030 ± 0.025 ± 0.015 ± 0.040 ± 0.030 ± 0.020
0.60 ≤ t < 0.80 ± 0.030 ± 0.025 ± 0.015 ± 0.035 ± 0.030 ± 0.018 ± 0.040 ± 0.035 ± 0.025
0.80 ≤ t < 1.00 ± 0.030 ± 0.025 ± 0.018 ± 0.040 ± 0.030 ± 0.020 ± 0.050 ± 0.035 ± 0.025
1.00 ≤ t < 1.20 ± 0.035 ± 0.030 ± 0.020 ± 0.045 ± 0.035 ± 0.025 ± 0.050 ± 0.040 ± 0.030
1.20 ≤ t < 1.50 ± 0.040 ± 0.030 ± 0.020 ± 0.050 ± 0.035 ± 0.025 ± 0.060 ± 0.045 ± 0.030
1.50 ≤ t < 2.00 ± 0.050 ± 0.035 ± 0.025 ± 0.060 ± 0.040 ± 0.030 ± 0.070 ± 0.050 ± 0.035
2.00 ≤ t < 2.50 ± 0.050 ± 0.035 ± 0.025 ± 0.070 ± 0.045 ± 0.030 ± 0.080 ± 0.060 ± 0.040
2.50 ≤  t ≤ 3.00 ± 0.060 ± 0.045 ± 0.030 ± 0.070 ± 0.050 ± 0.035 ± 0.090 ± 0.070 ± 0.045

Measurements in mm.


B) Thickness tolerances for strips cut from standard material.
Nominal thickness t Normal tolerances for nominal width w Close tolerances (S) for a nominal width w
 w ≤ 1000 1000 < w ≤ 1300  w ≤ 1000 1000 < w ≤ 1300
 t < 0.30 ± 0.030 - ± 0.020 -
0.30 ≤ t < 0.50 ± 0.040 ± 0.040 ± 0.025 ± 0.030
0.50 ≤ t < 0.60 ± 0.045 ± 0.050 ± 0.030 ± 0.035
0.60 ≤ t < 0.80 ± 0.050 ± 0.050 ± 0.035 ± 0.040
0.80 ≤ t < 1.00 ± 0.055 ± 0.060 ± 0.040 ± 0.045
1.00 ≤ t < 1.20 ± 0.060 ± 0.070 ± 0.045 ± 0.045
1.20 ≤ t < 1.50 ± 0.070 ± 0.080 ± 0.050 ± 0.055
1.50 ≤ t < 2.00 ± 0.080 ± 0.090 ± 0.055 ± 0.060
2.00 ≤ t < 2.50 ± 0.090 ± 0.10 - -
2.50 ≤  t ≤ 3.00 ± 0.11 ± 0.12 - -
3.00 ≤  t ≤ 4.00 ± 0.13 ± 0.14 - -
4.00 ≤  t ≤ 5.00 ± 0.14 ± 0.15 - -

Measurements in mm.

 

WIDTH TOLERANCES

Width tolerances for cold-rolled strips and strips in cut lengths obtained from these strips.
Specified thickness t Standard slitting tolerances for Metalle Schmidt 1) Specified width w according to EN ISO 9445 1)
3-15 15-50 50-150 >150 w ≤ 40 40 < w ≤ 125 125 < w ≤ 250 250 < w ≤ 600
Normal Fine (F) Precision (P) Normal Fine (F) Precision (P) Normal Fine (F) Precision (P) Normal Fine (F) Precision (P)
t < 0,25 0;+0,15 0;+0,15 0;+0,15 0;+0,2 0;+0,17 0;+0,13 0;+0,10 0;+0,20 0;+0,15 0;+0,12 0;+0,25 0;+0,20 0;+0,15 0;+0,50 0;+0,50 0;+0,40
0,25 ≤ t < 0,40 0;+0,15 0;+0,15 0;+0,15 0;+0,2 0;+0,20 0;+0,15 0;+0,12 0;+0,25 0;+0,20 0;+0,15 0;+0,30 0;+0,22 0;+0,17 0;+0,60 0;+0,50 0;+0,40
0,40  ≤ t < 0,50 0;+0,17 0;+0,18 0;+0,2 0;+0,24 0;+0,20 0;+0,15 0;+0,12 0;+0,25 0;+0,22 0;+0,15 0;+0,30 0;+0,22 0;+0,17 0;+0,60 0;+0,50 0;+0,40
0,50  ≤ t < 1 0;+0,17 2) 0;+0,18 2) 0;+0,20 2) 0;+0,242) 0;+0,25 0;+0,22 0;+0,15 0;+0,25 0;+0,22 0;+0,17 0;+0,40 0;+0,25 0;+0,20 0;+0,70 0;+0,60 0;+0,50
1 ≤ t < 1,50 0;+0,20 3) 0;+0,2 3) 0;+0,20 3) 0;+0,3 3) 0;+0,25 0;+0,22 0;+0,15 0;+0,30 0;+0,25 0;+0,17 0;+0,50 0;+0,30 0;+0,22 0;+1,0 0;+0,70 0;+0,60
1,50 ≤ t < 2,50 As per request 0;+0,26 4) 0;+0,30 4) 0;+0,32 4) - - - 0;+0,40 0;+0,25 0;+0,20 0;+0,60 0;+0,40 0;+0,25 0;+1,0 0;+0,80 0;+0,60
2,5 ≤ t ≤ 3 As per request As per request 0;+0,32 0;+0,35 - - - 0;+0,50 0;+0,30 0;+0,25 0;+0,60 0;+0,40 0;+0,25 0;+1,2 0;+1,0 0;+ 0,90
3 < t ≤ 5 As per request As per request 0;+0,32 0;+0,35 - - - - - - - - - - - -

Measurements in mm.

1) Other, closer dimensional tolerances are possible under a commercial agreement.
2) Including the value t=1
3) Including the value t=1,5
4) Including the value t=2,5
5) Subject to an agreement, the tolerance can be equal in ± or all -. In both cases, the total tolerance range must be as shown in the table.

 

 

EDGE CAMBER TOLERANCES

Nominal width (W) Closer edge curve tolerances possible under a commercial agreement. Edge curve tolerances 1) for average lengths of
Maximum deviation
2000 mm
Thickness (t)
Maximum deviation
2000 mm
Thickness (t)
t ≤ 1.20 mm t > 1.20 mm Normal Close ( R )
3 ≤ W < 6 10,00 15,00 - -
6 < W ≤  10 8,00 12,00 - -
10 < W ≤  20 4,00 6,00 16 2) 6
20 < W <  25 2,00 4,00 16 6
25 ≤ W < 40 2,00 4,00 12 5
40 ≤ W < 125 2,00 4,00 8 4
125 ≤ W < 350 2,00 4,00 6 3
350 ≤ W < 600 - - - -

Measurements in mm.
1) Edge curve tolerances for cold-rolled strips and for strips in cut lengths obtained from cold-rolled strips according to EN ISO 9445.
2) For nominal widths of 10mm included.

* The data contained in this catalogue are for information purposes only and are not under any circumstances, contractual supply conditions. Errors and omissions excepted.
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