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ASTM A959 405 vs BS 970 (Part 1) 403S17

Strong Match — 94.4% match based on chemical composition and mechanical property overlap.

ASTM A959 405 (ASTM A959:2011) and BS 970 (Part 1) 403S17 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 405 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while BS 970 (Part 1) 403S17 is commonly used for stainless and heat resisting steel for mechanical and allied engineering purposes (table 13).. ASTM A959 405 is defined under ASTM International, originating from United States, while BS 970 (Part 1) 403S17 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, ASTM A959 405 vs BS 970 (Part 1) 403S17 is a 94.4% 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 94.4%.

Frequently Compared With ASTM A959 405:
GOST 5632 06Kh23N28 IS 1570 (Part 7) 12Cr13H EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12Ni2Mo GB/T 3280 06Cr19Ni10 EN 10088-1 1.4301 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
94.4%
MECHANICAL MATCH
No shared data
OVERALL
94.4%
Specifications
Property ASTM A959 405 BS 970 (Part 1) 403S17
Standard ASTM A959:2011 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
Al (%) 0.10-0.30 Not specified
C (%) <=0.08 <=0.08
Cr (%) 11.5-14.5 12.0-14.0
Mn (%) <=1.00 <=1.0
Ni (%) <=0.50 <=0.50
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.0
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 405
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
BS 970 (Part 1) 403S17
Stainless and heat resisting steel for mechanical and allied engineering purposes (Table 13).
Key Differences
Can ASTM A959 405 Be Substituted With BS 970 (Part 1) 403S17?
ASTM A959 405 and BS 970 (Part 1) 403S17 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 403S17 is often considered as a substitute for ASTM A959 405 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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ASTM A959 405
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BS 970 (Part 1) 403S17
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Frequently Asked Questions
What is the difference between ASTM A959 405 and BS 970 (Part 1) 403S17?
ASTM A959 405 specifies Al which is not specified for BS 970 (Part 1) 403S17.
Can ASTM A959 405 be substituted with BS 970 (Part 1) 403S17?
ASTM A959 405 and BS 970 (Part 1) 403S17 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 403S17 is often considered as a substitute for ASTM A959 405 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.