Chemical composition of stainless steel flat products for general purposes to BS EN 10088-2

Introduction

BS EN 10088-2 is the material standard for stainless steel sheet, plate and strip for general purposes. A total of 97 stainless steel grades are listed, including 25 ferritic, 14 martensitic, 2 precipitation hardening, 44 austenitic and 12 austenitic-ferritic (duplex) grades. The chemical compositions of these stainless steels are shown in this article.

As an alternative to scanning down the list try the 'find' facility on your keyboard, using the 'Ctrl' and 'F' keys together. Type in the term you are looking for in the dialog box that then appears.

The data given is not intended to replace that shown in individual standards to which reference should always be made.

BS EN 10088-2:2014 Edition

BS EN 10088-2 was originally published in 1995. The second version, BS EN 10088-2:2005, has now been superseded by BS EN 10088-2:2014 which was withdrawn by BSi.
The tables shown here only have the 2014 composition ranges.

There have been 14 new grades added compared to the 2005 edition and the compositions of 3 grades have been changed including 2 austenitic grades (1.4371, 1.4597) and one duplex grade (1.4362).   LAST UPDATED 13th November 2014.

The new grades added include austenitic grades 1.4618, 1.4376, 1.4640, 1.4646, austenitic-ferritic (duplex) grades
1.4162, 1.4662, 1.4482, 1.4062 and ferritic grades 1.4600, 1.4607, 1.4611, 1.4613, 1.4630, 1.4634.

It is important to carefully check the standard in cases of dispute.

The permissible product analysis tolerances on values for cast analysis, shown in Table 5 of the standard are unchanged. For example, for a cast of 1.4301 grade, with a specified chromium range of 17.5 to 19.5, the tolerance on a product check sample is still + or - 0.20, not + or - 0.2 as might be expected. A single check sample on cast with a declared analysis of say, 18.1 must therefore be between 17.90 and 18.30.

See table below for full details of permitted deviations of product analysis

BS EN 10088-2 chemical composition tables

X2CrMnNiTi12

Designation Chemical composition % by mass max unless stated
Steel name Steel number C Si Mn P S N Cr Mo Ni Others
Ferritic stainless steels - standard grades
X2CrNi12 1.4003 0.030 1.00 1.50 0.040 0.015 0.030 10.5/12.5 - 0.30/1.00 -
X2CrTi12 1.4512 0.030 1.00 1.00 0.040 0.015 - 10.5/12.5 - - Ti: 6(C+N)/0.65
X6CrNiTi12 1.4516 0.08 0.70 1.50 0.040 0.015 - 10.5/12.5 - 0.50/1.50 Ti: 0.05/0.35
X6Cr13 1.4000 0.08 1.00 1.00 0.040 0.015 - 12.0/14.0 - - -
X6CrAl13 1.4002 0.08 1.00 1.00 0.040 0.015 - 12.0/14.0 - - Al: 0.10/0.30
X6Cr17 1.4016 0.08 1.00 1.00 0.040 0.015 - 16.0/18.0 - - -
X3CrTi17 1.4510 0.05 1.00 1.00 0.040 0.015 - 16.0/18.0 - - Ti: 4(C+N)+0.15/0.80
X3CrNb17 1.4511 0.05 1.00 1.00 0.040 0.015 - 16.0/18.0 - - Nb :12C/1.00
X6CrMo17-1 1.4113 0.08 1.00 1.00 0.040 0.015 - 16.0/18.0 0.90/1.40 - -
X2CrMoTi18-2 1.4521 0.025 1.00 1.00 0.040 0.015 0.030 17.0/20.0 1.80/2.50 - Ti: 4(C+N)+0.15/0.80
Ferritic stainless steels - special grades
X2CrMnNiTi12 1.4600 0.03 1.00 1.00/2.50 0.040 0.015 0.025 11.0/13.0 - 0.30/1.00 Ti: 6C/0.35    
X2CrSiTi15 1.4630 0.030 0.20/1.50 1.00 0.050 0.050 - 13.0/16.0 0.50 0.50 Ti: [4(C+N)+0.15]/0.80
X2CrTi17 1.4520 0.025 0.50 0.50 0.040 0.015 0.015 16.0/18.0 - - Ti: 0.30/0.6
X1CrNb15 1.4595 0.020 1.00 1.00 0.025 0.015 0.020 14.0/16.0 - 0.20/0.60 -
X2CrMoTi17-1 1.4513 0.025 1.00 1.00 0.040 0.015 0.015 16.0/18.0 0.80/1.40 - Ti: 0.30/0.60
X6CrNi17-1 1.4017 0.08 1.00 1.00 0.040 0.015 - 16.0/18.0 - 1.20/1.60 -
X5CrNiMoTi15-2 1.4589 0.08 1.00 1.00 0.040 0.015 - 13.5/15.5 0.20/1.20 1.00/2.50 Ti: 0.30/0.50
X6CrMoNb17-1 1.4526 0.08 1.00 1.00 0.040 0.015 0.040 16.0/18.0 0.80/1.40 - Nb:7(C+N)+0.10/1.00
X2CrNbZr17 1.4590 0.030 1.00 1.00 0.040 0.015 - 16.0/17.5 - - Zr: >7(C+N)+0.15
Nb: 0.35/0.55
X2CrTiNb18 1.4509 0.030 1.00 1.00 0.040 0.015 - 17.5/18.5 - - Ti: 0.10/0.60
Nb: 3C+0.30/1.00
X2CrAlSiNb18 1.4634 0.030 0.20/1.50 1.00 0.050 0.050 - 17.5/18.5 0.50 0.50

Nb: 3C+0.30/1.00

Al: 0.20/1.50

Cu: 0.50

X2CrNbTi20 1.4607 0.030 1.00 1.00 0.040 0.015 0.030 18.5/20.5 - -

Ti:4 × (C+N) + 0.15/0.80

Nb: 1.00

X2CrTi21

1.4611 0.030 1.00 1.00 0.050 0.050 - 19.0/22.0 0.50 0.50

Ti: 4 × (C+N) + 0.20/1.00

Cu: 0.50

Al: 0.05

X2CrNbCu21 1.4621 0.030 1.00 1.00 0.040 0.015   20.0/21.5 -    
X2CrTi24 1.4613 0.030 1.00 1.00 0.050 0.050 - 22.0/25.0 0.50 0.50

Ti: 4 × (C+N) + 0.20/1.00

Cu: 0.50

Al: 0.05

X2CrMoTi29-4 1.4592 0.025 1.00 1.00 0.030 0.010 0.045 28.0/30.0 3.50/4.50 - Ti: 4(C+N)+0.15/0.80
Martensitic stainless steels - standard grades
 
X12Cr13 1.4006 0.08/0.15 1.00 1.50 0.040 0.015 - 11.5/13.5 - 0.75 -
X15Cr13 1.4024 0.12/0.17 1.00 1.00 0.040 0.015 - 12.0/14.0 - - -
X20Cr13 1.4021 0.16/0.25 1.00 1.50 0.040 0.015 - 12.0/14.0 - - -
X30Cr13 1.4028 0.26/0.35 1.00 1.50 0.040 0.015 - 12.0/14.0 - - -
X39Cr13 1.4031 0.36/0.42 1.00 1.00 0.040 0.015 - 12.5/14.5 - - -
X46Cr13 1.4034 0.43/0.50 1.00 1.00 0.040 0.015 - 12.5/14.5 - - -
X38CrMo14 1.4419 0.36/0.42 1.00 1.00 0.040 0.015 - 13.0/14.5 0.60/1.00 - -
X55CrMo14 1.4110 0.48/0.60 1.00 1.00 0.040 0.015 - 13.0/15.0 0.50/0.80 - V: 0.15
X50CrMoV15 1.4116 0.45/0.55 1.00 1.00 0.040 0.015 - 14.0/15.0 0.50/0.80 - V: 0.10/0.20
X39CrMo17-1 1.4122 0.33/0.45 1.00 1.50 0.040 0.015 - 15.5/17.5 0.80/1.30 1.00 -
X3CrNiMo13-4 1.4313 0.05 0.70 1.50 0.040 0.015 >0.020 12.0/14.0 0.30/0.70 3.5/4.5  
X4CrNiMo16-5-1 1.4418 0.06 0.70 1.50 0.040 0.015 >0.020 15.0/17.0 0.80/1.50 4.0/6.0  
Martensitic and precipitation-hardening steels - special grades
X1CrNiMoCu12-5-2 1.4422 0.020 0.50 2.00 0.040 0.003 0.020 11.0/13.0 1.30/1.80 4.0/5.0 Cu 0.20/0.80
X1CrNiMoCu12-7-3 1.4423 0.020 0.50 2.00 0.040 0.003 0.020 11.0/13.0 2.30/2.80 6.0/7.0 Cu 0.20/0.80
X5CrNiCuNb16-4 1.4542 0.07 0.70 1.50 0.040 0.015 - 15.0/17.0 0.60 3.0/5.0 Cu 3.0/5.0
Nb 5C/0.45
X7CrNiAl17-7 1.4568 0.09 0.70 1.00 0.040 0.015 - 16.0/18.0 - 6.5/7.8 Al: 0.70/1.50
Austenitic stainless steels - standard grades
X10CrNi18-8 1.4310 0.05/0.15 2.00 2.00 0.045 0.015 0.11 16.0/19.0 0.80 6.0/9.5 -
X2CrNiN18-7 1.4318 0.030 1.00 2.00 0.045 0.015 0.10/0.20 16.5/18.5 - 6.0/8.0 -
X2CrNi18-9 1.4307 0.030 1.00 2.00 0.045 0.015 0.11 17.5/19.5 - 8.0/10.5 -
X2CrNi19-11 1.4306 0.030 1.00 2.00 0.045 0.015 0.11 18.0/20.0 - 10.0/12.0 -
X2CrNiN18-10 1.4311 0.030 1.00 2.00 0.045 0.015 0.12/0.22 17.5/19.5 - 8.5/11.5 -
X5CrNi18-10 1.4301 0.07 1.00 2.00 0.045 0.015 0.11 17.5/19.5 - 8.0/10.5 -
X8CrNiS18-9 1.4305 0.10 1.00 2.00 0.045 0.15/0.35 0.11 17.0/19.0 - 8.0/10.0 Cu: 1.00
X6CrNiTi18-10 1.4541 0.08 1.00 2.00 0.045 0.015 - 17.0/19.0 - 9.0/12.0 Ti: 5C/0.70
X4CrNi18-12 1.4303 0.06 1.00 2.00 0.045 0.015 0.11 17.0/19.0 - 11.0/13.0 -
X2CrNiMo17-12-2 1.4404 0.030 1.00 2.00 0.045 0.015 0.11 16.5/18.5 2.00/2.50 10.0/13.0 -
X2CrNiMoN17-11-2 1.4406 0.030 1.00 2.00 0.045 0.015 0.12/0.22 16.5/18.5 2.00/2.50 10.0/12.0 -
X5CrNiMo17-12-2 1.4401 0.07 1.00 2.00 0.045 0.015 0.11 16.5/18.5 2.00/2.50 10.0/13.0 -
X6CrNiMoTi17-12-2 1.4571 0.08 1.00 2.00 0.045 0.015 - 16.5/18.5 2.00/2.50 10.5/13.5 Ti: 5C/0.70
X2CrNiMo17-12-3 1.4432 0.030 1.00 2.00 0.045 0.015 0.11 16.5/18.5 2.50/3.00 10.5/13.0 -
X2CrNiMo18-14-3 1.4435 0.030 1.00 2.00 0.045 0.015 0.11 17.0/19.0 2.50/3.00 12.5/15.0 -
X2CrNiMoN17-13-5 1.4439 0.030 1.00 2.00 0.045 0.015 0.12/0.22 16.5/18.5 4.0/5.0 12.5/14.5 -
X1NiCrMoCu25-20-5 1.4539 0.020 0.70 2.00 0.030 0.010 0.15 19.0/21.0 4.0/5.0 24.0/26.0 Cu: 1.20/2.00
Austenitic stainless steels - special grades
X5CrNi17-7 1.4319 0.07 1.00 2.00 0.045 0.030 0.11 16.0/18.0 - 6.0/8.0 -
X5CrNiN19-9 1.4315 0.06 1.00 2.00 0.045 0.015 0.12/0.22 18.0/20.0 - 8.0/11.0 -
X5CrNiCu19-6-2 1.4640 0.030/0.08 0.50 1.50/4.0 0.045 0.015 0.03/0.11 18.0/19.0 - 5.5/6.9 Cu: 1.30/2.00
X1CrNi25-21 1.4335 0.020 0.25 2.00 0.025 0.010 0.11 24.0/26.0 0.20 20.0/22.0 -
X6CrNiNb18-10 1.4550 0.08 1.00 2.00 0.045 0.015 - 17.0/19.0 - 9.0/12.0 Nb: 10xC/1.00
X1CrNiMoN25-22-2 1.4466 0.020 0.70 2.00 0.025 0.010 0.10/0.16 24.0/26.0 2.00/2.50 21.0/23.0 -
X6CrNiMoNb17-12-2 1.4580 0.08 1.00 2.00 0.045 0.015 - 16.5/18.5 2.00/2.50 10.5/13.5 Nb: 10xC/1.00
X2CrNiMoN17-3-3 1.4429 0.030 1.00 2.00 0.045 0.015 0.12/0.22 16.5/18.5 2.50/3.00 11.0/14.0 -
X3CrNiMo17-13-3 1.4436 0.05 1.00 2.00 0.045 0.015 0.11 16.5/18.5 2.50/3.00 10.5/13.0 -
X2CrNiMoN18-12-4 1.4434 0.030 1.00 2.00 0.045 0.015 0.10/0.20 16.5/19.5 3.0/4.0 10.5/14.0 -
X2CrNiMo18-15-4 1.4438 0.030 1.00 2.00 0.045 0.015 0.11 17.5/19.5 3.0/4.0 13.0/16.0 -
X1CrNiMoCuN24-22-8 1.4652 0.020 0.50 2.00/4.0 0.030 0.005 0.45/0.55 23.0/25.0 7.0/8.0 21.0/23.0 Cu: 0.30/0.60
X1CrNiSi18-15-4 1.4361 0.015 3.7/4.5 2.00 0.025 0.010 0.11 16.5/18.5 0.20 14.0/16.0 -
X6CrMnNiCuN18-12-4-2 1.4646 0.02/0.10 1.00 10.5/12.5 0.050 0.015 0.20/0.30 17.0/19.0 - 3.5/4.5 Cu: 1.50/3.00
X11CrNiMnN19-8-6 1.4369 0.07/0.15 0.50/1.00 5.0/7.5 0.030 0.015 0.20/0.30 17.5/19.5 - 6.5/8.5 -
X8CrMnNi19-6-3 1.4376 0.10 1.00 5.0/8.0 0.045 0.015 0.30 17.0/20.5 - 2.00/4.5 -
X12CrMnNiN17-7-5 1.4372 0.15 1.00 5.5/7.5 0.045 0.015 0.05/0.25 16.0/18.0 - 3.5/5.5 -
X2CrMnNiN17-7-5 1.4371 0.030 1.00 6.0/8.0 0.045 0.015 0.15/0.20 16.0/17.0 - 3.5/5.5 -

X9CrMnNiCu17-8-5-2

1.4618 0.10 1.00 5.5/9.5 0.070 0.010 0.15 16.5/18.5 - 4.5/5.5 Cu: 1.50/2.50
X12CrMnNiN18-9-5 1.4373 0.15 1.00 7.5/10.5 0.045 0.015 0.05/0.25 17.0/19.0 - 4.0/6.0 -
X9CrMnCuNB17-8-3 1.4597 0.10 2.00 6.5/8.5 0.040 0.030 0.15/0.30 16.0/18.0 1.00 2.00 B:0.0005/0.0050
Cu: 2.00/3.5
X1NiCrMo31-27-4 1.4563 0.020 0.70 2.00 0.030 0.010 0.11 26.0/28.0 3.0/4.0 30.0/32.0 Cu: 0.70/1.50
X1CrNiMoCuN25-25-5 1.4537 0.020 0.70 2.00 0.030 0.010 0.17/0.25 24.0/26.0 4.7/5.7 24.0/27.0 Cu: 1.00/2.00
X1CrNiMoCuN20-18-7 1.4547 0.020 0.70 1.00 0.030 0.010 0.18/0.25 19.5/20.5 6.0/7.0 17.5/18.5 Cu: 0.50/1.00
X1CrNiMoCuNW24-22-6 1.4659 0.020 0.70 2.00/4.0 0.030 0.010 0.35/0.50 23.0/25.0 5.5/6.5 21.0/23.0 Cu: 1.00/2.00
W: 1.50/2.50
X1NiCrMoCuN25-20-7 1.4529 0.020 0.50 1.00 0.030 0.010 0.15/0.25 19.0/21.0 6.0/7.0 24.0/26.0 Cu: 0.50/1.50
X2CrNiMnMoN25-18-6-5 1.4565 0.030 1.00 5.0/7.0 0.030 0.015 0.30/0.60 24.0/26.0 4.0/5.0 16.0/19.0 Nb: 0.15
Austenitic-ferritic stainless steels-standard grades
X2CrNiN23-4 1.4362 0.030 1.00 2.00 0.035 0.015 0.05/0.20 22.0/24.0 0.10/0.60 3.5/5.5 Cu 0.10/0.60
X2CrNiMoN22-5-3 1.4462 0.030 1.00 2.00 0.035 0.015 0.10/0.22 21.0/23.0 2.50/3.50 4.5/6.5 -
Austenitic-ferritic stainless steels-special grades
X2CrNiN22-2 1.4062 0.030 1.00 2.00 0.040 0.010 0.16/0.28 21.5/24.0 0.45 1.00/2.90 -
X2CrNiCuN23-4 1.4655 0.030 1.00 2.00 0.035 0.015 0.05/0.20 22.0/24.0 0.10/0.60 3.5/5.5 Cu: 1.00/3.00
X2CrMnNiN21-5-1 1.4162 0.040 1.00 4.0/6.0 0.040 0.015 0.20/0.25 21.0/22.0 0.10/0.80 1.35/1.90 Cu: 0.10/0.80
X2CrMnNiMoN21-5-3 1.4482 0.030 1.00 4.0/6.0 0.035 0.030 0.05/0.20 19.5/21.5 0.10/0.60 1.50/3.50 Cu: 1.00
X2CrNiMnMoCuN24-4-3-2 1.4662 0.030 0.70 2.50/4.0 0.035 0.005 0.20/0.30 23.0/25.0 1.00/2.00 3.0/4.5 Cu; 0.10/0.80
X2CrNiMoN29-7-2 1.4477 0.030 0.50 0.80/1.50 0.030 0.015 0.30/0.40 28.0/30.0 1.50/2.60 5.8/7.5 Cu: 0.80
X2CrNiMoCuN25-6-3 1.4507 0.030 0.70 2.00 0.035 0.015 0.20/0.30 24.0/26.0 3.0/4.0 6.0/8.0 Cu: 1.00/2.50
X2CrNiMoN25-7-4 1.4410 0.030 1.00 2.00 0.035 0.015 0.24/0.35 24.0/26.0 3.0/4.5 6.0/8.0 -
X2CrNiMoCuWN25-7-4 1.4501 0.030 1.00 1.00 0.035 0.015 0.20/0.30 24.0/26.0 3.0/4.0 6.0/8.0 Cu: 0.50/1.00
W: 0.50/1.00
X2CrNiMoSi18-5-3 1.4424 0.030 1.40/2.00 1.20/2.00 0.035 0.015 0.05/0.10 18.0/19.0 2.50/3.0 4.5/5.2 -

Permissible product analysis tolerances on the cast analysis ranges given in EN 10088-2

 

Element Specified Limits on Cast Analysis (%)                           Permissible tolerance on product analysis (%)                                               
Carbon   < 0.030 +0.005
> 0.030 < 0.20 ±0.01
> 0.20 < 0.50 ±0.02
> 0.50 < 0.60 ±0.03
Silicon   < 1.00 ±0.05
> 1.00 < 4.5 ±0.10
Manganese   < 1.00 +0.03
> 1.00 < 2.00 ±0.04
> 2.00 < 10.5 ±0.10
Phosphorus   < 0.045 +0.005
Sulphur   < 0.015 +0.003
> 0.015 < 0.030 ±0.005
> 0.15 < 0.35 ±0.02
Nitrogen   < 0.11 ±0.01
> 0.11 < 0.50 ±0.02
Chromium > 10.5 < 15.0 ±0.15
> 15.0 < 20.0 ±0.20
> 20.0 < 30.0 ±0.25
Copper   < 1.00 ±0.07
> 1.00 < 5.0 ±0.10
Molybdenum   <0.60 ±0.03
> 0.60 < 1.75 ±0.05
> 1.75 < 8.0 ±0.10
Niobium   < 1.00 ±0.05
Nickel   < 1.00 ±0.03
> 1.00 < 5.0 ±0.07
> 5.0 < 10.0 ±0.10
> 10.0 < 20.0 ±0.15
> 20.0 < 32.0 ±0.20
Aluminium > 0.10 < 0.30 ±0.05
> 0.30 < 1.50 ±0.10
Boron   < 0.0050 ±0.0005
Titanium   < 0.80 ±0.05
Tungsten   < 2.50 ±0.05
Vanadium   < 0.20 ±0.03

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