Close Alternative — 81.4% match
based on chemical composition and mechanical property overlap.
ASTM A959 317 (ASTM A959:2011) and BS 970 (Part 3) 316S33 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 317 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while BS 970 (Part 3) 316S33 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (table 18).
ASTM A959 317 is defined under ASTM International, originating from United States, while BS 970 (Part 3) 316S33 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, ASTM A959 317 vs BS 970 (Part 3) 316S33 is a 81.4% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 81.4%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 317
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
BS 970 (Part 3) 316S33
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (Table 18)
Can ASTM A959 317 Be Substituted With BS 970 (Part 3) 316S33?
ASTM A959 317 and BS 970 (Part 3) 316S33 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between ASTM A959 317 and BS 970 (Part 3) 316S33?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 317 be substituted with BS 970 (Part 3) 316S33?
ASTM A959 317 and BS 970 (Part 3) 316S33 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.