Post Stock Login Register

BS 970 (Part 1) 302S31 vs ASTM A959 302

Strong Match — 95.6% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 302S31 (BS 970 (Part 1):1991) and ASTM A959 302 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. BS 970 (Part 1) 302S31 is typically used for austenitic stainless and heat resisting steel (section five), while ASTM A959 302 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). BS 970 (Part 1) 302S31 is defined under British Standards (BS), originating from United Kingdom, while ASTM A959 302 is defined under ASTM International, originating from United States.

As per chemical composition, BS 970 (Part 1) 302S31 vs ASTM A959 302 is a 95.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 95.6%.

Frequently Compared With BS 970 (Part 1) 302S31:
IS 1570 (Part 7) 11Cr17Ni13W3TiH GOST 5632 06Kh23N28 IS 1570 (Part 7) 12Cr12MoH GB/T 3280 06Cr19Ni10 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H ASTM A959 .- GOST 5632 08X18H10 EN 10088-1 1.4006
Match Breakdown
CHEMISTRY MATCH
95.6%
MECHANICAL MATCH
No shared data
OVERALL
95.6%
Specifications
Property BS 970 (Part 1) 302S31 ASTM A959 302
Standard BS 970 (Part 1):1991 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.12 <=0.15
Si (%) <=1.0 <=1.00
Mn (%) <=2.0 <=2.00
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Cr (%) 17.0-19.0 17.0-19.0
Ni (%) 8.0-10.0 8.0-10.0
N (%) Not specified <=0.10
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 302S31 ASTM A959 302
Condition Softened, 1000-1100 deg C Not specified
Tensile Strength 510 MPa min Not specified
Yield Strength 190 MPa min (0.2% proof) Not specified
Elongation 40 % min Not specified
Hardness 183 HB max Not specified
Typical Applications
BS 970 (Part 1) 302S31
Austenitic stainless and heat resisting steel (section five)
ASTM A959 302
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can BS 970 (Part 1) 302S31 Be Substituted With ASTM A959 302?
BS 970 (Part 1) 302S31 and ASTM A959 302 overlap closely enough on chemistry and mechanical properties that ASTM A959 302 is often considered as a substitute for BS 970 (Part 1) 302S31 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
BS 970 (Part 1) 302S31
0 active listings and RFQs →
ASTM A959 302
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 302S31 and ASTM A959 302?
ASTM A959 302 specifies N which is not specified for BS 970 (Part 1) 302S31.
Can BS 970 (Part 1) 302S31 be substituted with ASTM A959 302?
BS 970 (Part 1) 302S31 and ASTM A959 302 overlap closely enough on chemistry and mechanical properties that ASTM A959 302 is often considered as a substitute for BS 970 (Part 1) 302S31 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.