EN 10297-2 Seamless Tubes(Chemical compositions)
BS EN 10297-2 is the material standard for stainless and heat-resisting steels for seamless tubes for mechanical and general engineering (ie not pressure) purposes.

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European Standard EN 10297-2 Seamless Tubes(Chemical compositions)
 
Metal Steel Technology Summary>> EN 10297-2 Seamless Tubes(Chemical compositions)
  

EN 10297-2 Seamless Tubes(Chemical compositions)
BS EN 10297-2 is the material standard for stainless and heat-resisting steels for seamless tubes for mechanical and general engineering (ie not pressure) purposes.

Introduction

BS EN 10297-2 is the material standard for stainless and heat-resisting steels for seamless tubes for mechanical and general engineering (ie not pressure) purposes. This new standard was first published in December 2005. It does not replace any previous British Standards, unlike the counterpart welded tube standard BSEN 10296-2, which replaced BS 6323-8:1982.
Included in the standard are chemical compositions, delivery conditions, ambient temperature mechanical properties, some additional optional tests (leak testing, hydrostatic testing and a range of non-destructive test options including eddy current and ultrasonic test methods) and some dimensional and tolerance requirements.
Ferritic (4), one martensitic (1.4006), austenitic (22), austenitic-ferritic (duplex) (8) stainless steels and one ferritic (1.4749) and austenitic (6) heat resisting grades are included in the range of grades specified in this standard. Only the chemical composition of the stainless steels in the standard are listed in this article.

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

BS EN 10297-2 chemical composition tables

Corrosion resistant steels

 
Designation Chemical composition (% by mass - max unless stated)
Steel name Steel number C Si Mn P S Cr Mo Ni Cu N Ti Others
Ferritic steels
X2CrTi12 1.4512 0.030 1.00 1.00 0.040 0.015 10.5/12.5 - - - 0.030 6x(C+N)/0.65  
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 - - - - 4x(C+N)+0.15/0.80  
Martensitic steel
X12Cr13 1.4006 0.08/0.15 1.00 1.50 0.040 0.015 11.5/13.5 0.75 - - - - -
Austenitic steels
X2CrNi18-9 1.4307 0.030 1.00 2.00 0.045 0.015 17.5/19.5 - 8.0/10.5 - 0.11 - -
X2CrNi19-11 1.4306 0.030 1.00 2.00 0.045 0.015 18.0/20.0 - 10.0/12.0 - 0.11 - -
X2CrNiN18-10 1.4311 0.030 1.00 2.00 0.045 0.015 17.0/19.5 - 8.5/11.5 - 0.12/0.22 - -
X5CrNi18-10 1.4301 0.07 1.00 2.00 0.045 0.015 17.0/19.5 - 8.0/10.5 - 0.11 - -
X8CrNiS18-9 1.4305 0.10 1.00 2.00 0.045 0.15/0.35 17.0/19.0 - 8.0/10.0 1.00 0.11 - -
X6CrNiTi18-10 1.4541 0.08 1.00 2.00 0.045 0.015 17.0/19.0 - 9.0/12.0 - - 5xC/0.70 -
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
X1CrNi25-21 1.4335 0.020 0.25 2.00 0.025 0.010 24.0/26.0 0.20 20.0/22.0 - 0.11 - -
X2CrNiMo17-12-2 1.4404 0.030 1.00 2.00 0.045 0.015 16.5/18.5 2.00/2.50 10.0/14.5 - 0.11 - -
X5CrNiMo17-12-2 1.4401 0.07 1.00 2.00 0.045 0.015 16.5/18.5 2.00/2.50 10.0/13.0 - 0.11 - -
X1CrNiMoN25-22-2 1.4466 0.020 0.70 2.00 0.025 0.010 24.0/26.0 2.00/2.50 21.0/23.0 - 0.10/0.16 - -
XCrNiMoTi17-12-2 1.4571 0.08 1.00 2.00 0.045 0.015 16.5/18.5 2.00/2.50 10.5/14.0 - - 5xC/0.70  
X6CrNiMoNb17-12-3 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
X2CrNiMoN17-13-3 1.4429 0.030 1.00 2.00 0.045 0.015 16.5/18.5 2.50/3.00 11.0/15.0 - 0.12/0.22 - -
X3CrNiMo17-13-3 1.4436 0.05 1.00 2.00 0.045 0.015 16.5/18.5 2.50/3.00 10.5/14.0 - 0.11 - -
X2CrNiMo18-14-3 1.4435 0.030 1.00 2.00 0.045 0.015 17.0/19.0 2.50/3.00 12.5/15.0 - 0.11 - -
X2CrNiMoN17-13-5 1.4439 0.030 1.00 2.00 0.045 0.015 16.5/18.5 4.0/5.0 12.5/14.5 - 0.12/0.22 - -
X1NiCrMoCuCu31-27-4 1.4563 0.020 0.70 2.00 0.030 0.010 26.0/28.0 3.0/4.0 30.0/32.0 0.70/1.50 0.11 - -
X1NiCrMoCu25-20-5 1.4539 0.020 0.70 2.00 0.030 0.010 19.0/21.0 4.0/5.0 24.0/26.0 1.20/2.00 0.15 - -
X1CrNiMoCuN20-18-7 1.4547 0.020 0.70 1.00 0.030 0.010 19.5/20.5 6.0/7.0 17.5/18.5 0.50/1.00 0.18/0.25 - -
X1NiCrMoCuN25-20-7 1.4529 0.020 0.50 1.00 0.030 0.010 19.0/21.0 6.0/7.0 24.0/26.0 0.50/1.50 0.15/0.25 - -
X2NiCrAlTi32-20 1.4558 0.030 0.70 1.00 0.020 0.015 20.0/23.0 - 32.0/35.0 - - 8xC/0.60 Al: 0.15/0.45
Austenitic ferritic steels
X2CrNiN23-4 1.4362 0.030 1.00 2.00 0.035 0.015 22.0/24.0 0.10/0.60 3.5/5.5 0.10/0.60 0.05/0.20 - -
X3CrNiMoN27-5-2 1.4460 0.05 1.00 2.00 0.035 0.015 25.0/28.0 1.30/2.00 4.5/6.5 - 0.05/0.20 - -
X2CrNiMoN29-7-2 1.4477 0.030 0.50 0.80/1.50 0.030 0.015 28.0/30.0 1.50/2.60 5.8/7.5 - 0.30/0.40 - -
X2CrNiMoN22-5-3 1.4462 0.030 1.00 2.00 0.035 0.015 21.0/23.0 2.50/3.5 4.5/6.5 - 0.10/0.22 - -
X2CrNiMoCuN25-6-3 1.4507 0.030 0.70 2.00 0.035 0.015 24.0/26.0 2.7/4.0 5.5/7.5 1.00/2.50 0.15/0.30 - -
X2CrNiMoN25-7-4 1.4410 0.030 1.00 2.00 0.035 0.015 24.0/26.0 3.0/4.5 6.0/8.0 - 0.24/0.35 - -
X2CrNiMoCuWN25-7-4 1.4501 0.030 1.00 1.00 0.035 0.015 24.0/26.0 3.0/4.0 6.0/8.0 0.50/1.00 0.20/0.30 - W: 0.50/1.00
X2CrNiMoSi18-5-3 1.4424 0.030 1.40/2.00 1.20/2.00 0.035 0.015 18.0/19.0 2.50/3.00 4.5/5.2 - 0.05/0.10 - -

Heat resisting steels

Designation Chemical composition (% by mass - max unless stated)
Steel name Steel number C Si Mn P S Cr Ni N Ti Others
Ferritic heat resisting steel
X18CrN28 1.4749 0.15/0.20 1.00 1.00 0.040 0.015 26.0/29.0 - 0.15/0.25 - -
Austenitic heat resisting steels
X8CrNiTi18-10 1.4878 0.10 1.00 2.00 0.045 0.015 17.0/19.0 9.0/12.0 - 5xC/0.80 -
X9CrNiSiNCe21-11-2 1.4835 0.05/0.12 1.40/2.50 1.00 0.045 0.015 20.0/22.0 10.0/12.0 0.12/0.20 - Ce: 0.03/0.08
X12CrNi23-13 1.4833 0.15 1.00 2.00 0.045 0.015 22.0/24.0 12.0/14.0 0.11 - -
X8CrNi25-21 1.4845 0.10 1.50 2.00 0.045 0.015 24.0/26.0 19.0/22.0 0.11 - -
X10NiCrAlTi32-21 1.4876 0.12 1.00 2.00 0.030 0.015 19.0/23.0 30.0/34.0 - 0.15/0.60 Al: 0.15/0.60
X6NiCrSiNCe35-25 1.4854 0.04/0.08 1.20/2.00 2.00 0.040 0.015 24.0/26.0 34.0/36.0 0.12/0.20 - Ce: 0.03/0.08

 

 

 

 

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European Standard EN 10297-2 Seamless Tubes(Chemical compositions)
BS EN 10297-2 is the material standard for stainless and heat-resisting steels for seamless tubes for mechanical and general engineering (ie not pressure) purposes.