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Standard

BS 1449-2 Chemical Composition of Stainless Steel






BS 1449-2 Specification for heat-resisting stainless steel plate, sheet and strip was last published in 1983. It covered flat products in both annealed and temper (cold) rolled supply conditions. BS 1449-2 was withdrawn in 1999 following the publication of EN 10088-2 in 1995 (stainless grades) and EN 10095 (heat-resisting grades) in 1995. BS 1449-2 should not be used for specifying new products, but may still be included in specifications for products originally designed before 1995 and so is included here for reference purposes only. Flat products for pressure purposes are now covered by BS EN 10028-7.

BS 1449-2 chemical composition table

Grade
Chemical composition (% by mass - max unless stated)
- C Si Mn S P Cr Ni Mo Others
Austenitic Stainless Steel
284S16 0.07 1.00 7.00/10.0 0.030 0.060 16.5/18.5 4.00/6.50 - N 0.15/0.25
301S21 0.15 1.00 2.00 0.030 0.045 16.0/18.0 6.0/8.0 - -
304S11 0.030 1.00 2.00 0.030 0.045 17.0/19.0 9.0/12.0 - -
304S15 0.06 1.00 2.00 0.030 0.045 17.5/19.0 8.0/11.0 - -
304S16 0.06 1.00 2.00 0.030 0.045 17.5/19.0 9.0/11.0 - -
304S31 0.07 1.00 2.00 0.030 0.045 17.0/19.0 8.0/11.0 - -
305S19 0.10 1.00 2.00 0.030 0.045 17.0/19.0 11.0/13.0 - -
309S24 0.15 1.00 2.00 0.030 0.045 22.0/25.0 13.0/16.0 - -
310S24 0.15 1.00 2.50 0.030 0.045 23.0/26.0 19.0/22.0 - -
315S16 0.07 1.00 2.00 0.030 0.045 16.5/18.5 9.0/11.0 1.25/1.75 -
316S11 0.030 1.00 2.00 0.030 0.045 16.5/18.5 11.0/14.0 2.0/2.5 -
316S13 0.030 1.00 2.00 0.030 0.045 16.5/18.5 11.5/14.5 2.5/3.0 -
316S31 0.07 1.00 2.00 0.030 0.045 16.5/18.5 10.5/13.5 2.0/2.5 -
316S33 0.07 1.00 2.00 0.030 0.045 16.5/18.5 11.0/14.0 2.5/3.0 -
317S12 0.03 1.00 2.00 0.030 0.045 17.5/19.5 14.0/17.0 3.0/4.0 -
317S16 0.06 1.00 2.00 0.030 0.045 17.5/19.5 12.0/15.0 3.0/4.0 -
320S31 0.08 1.00 2.00 0.030 0.045 16.5/18.5 11.0/14.0 2.0/2.5 Ti 5C/0.80
320S33 0.08 1.00 2.00 0.030 0.045 16.5/18.5 11.5/14.5 2.5/3.0 Ti 5C/0.80
321S31 0.08 1.00 2.00 0.030 0.045 17.0/19.0 9.0/12.0 - Ti 5C/0.80
347S31 0.08 1.00 2.00 0.030 0.045 17.0/19.0 9.0/12.0 - Nb 10C/1.00
Ferritic Stainless Steel
403S17 0.08 1.00 1.00 0.030 0.040 12.0/14.0 1.00 - -
405S17 0.08 1.00 1.00 0.030 0.040 12.0/14.0 1.00 - Al 0.10/0.30
409S19 0.08 1.00 1.00 0.030 0.040 10.5/12.5 1.00 - Ti 6C/1.0
430S17 0.08 1.00 1.00 0.030 0.040 16.0/18.0 1.00 - -
434S17 0.08 1.00 1.00 0.030 0.040 16.0/18.0 1.00 0.90/1.30 -
Martensitic Stainless Steel
410S21 0.09/0.15 1.00 1.00 0.030 0.040 11.5/13.5 1.00 - -
420S45 0.28/0.36 1.00 1.00 0.030 0.040 12.0/14.0 1.00 - -

Related References:
1. British Standard BS for Stainless Steel for General Application
2. British Standard for Welding and Fabrication of Stainless Steel
3. BS ASTM Tolerances Surface Finish and Test of Stainless Steel
4. British EN Standard Strength of Steel
5. BS Pipe Tube and Fitting Standard and Specification
6. BS ASTM Tolerances Surface Finish and Test of Stainless Steel
7. EN ASTM Stainless Steel for Pressure Vessel Application
9. BS Aerospace S100 Chemical Composition Mechanical Properties
10. BS Aerospace S500 Chemical Composition Mechanical Properties
11. BS 3100 Chemical Composition of Stainless Steel
12. BS 3100 1991 Cast Steel Chemical Composition
13. BS 970 Stainless Steel Chemical Composition
14. BS 6744 Chemical Composition and Mechanical Properties of stainless steel


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321 321H Stainless Steel
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2205 Duplex Pipe Tubing
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2507 Super Duplex Pipe
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ASTM A213 | ASTM A269
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EN 10216-5
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes
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UNS N08020 Alloy 20 Tubing
UNS N02200 Alloy 200 Tube
UNS N02201 Alloy 201 Pipe
UNS N04400 Monel 400 Tubing
N06600 Inconel 600 Tube
N06601 Inconel 601 Tubing
N06625 Inconel 625 Tubes
N08800 Incoloy 800 Tube
N08810 Incoloy 800H Tube
N08811 Incoloy 800HT Tubing
UNS N08825 Incoloy 825 Pipe
ASTM B622 N10276 C276 Tubing
ASTM B622 N06022 Hastelloy C-22 Alloy Tubes
C28000 Brass Seamless Tubes C44300 Brass Seamless Tubes
C68700 Brass Seamless Tubes
C70600 Copper Nickel Tubes
C71500 Copper Nickel Tubes
DIN 2391 Seamless Precision Steel Tubes
EN 10305-1 E215 E235 E355 Seamless Precision Steel Tube Tubing Tubes
DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
EN 10305-2 E195 E235 E355 Welded Cold Drawn Precision Steel Tube