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ASTM A959 317L vs ASTM A240/A240M S31703

Strong Match — 95.8% match based on chemical composition and mechanical property overlap.

ASTM A959 317L (ASTM A959:2011) and ASTM A240/A240M S31703 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 317L is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S31703 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 317L is defined under ASTM International, originating from United States, while ASTM A240/A240M S31703 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 317L vs ASTM A240/A240M S31703 is a 95.8% 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 95.8%.

Frequently Compared With ASTM A959 317L:
EN 10088-1 1.4401 ASTM A959 25-4-4 ASTM A959 2205 ASTM A959 26-3-3 ASTM A959 29-4C EN 10088-1 1.4301 ASTM A959 .- GOST 5632 06Kh23N28 GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4845
Match Breakdown
CHEMISTRY MATCH
95.8%
MECHANICAL MATCH
No shared data
OVERALL
95.8%
Specifications
Property ASTM A959 317L ASTM A240/A240M S31703
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Cr (%) 18.0-20.0 18.0-20.0
Mn (%) <=2.00 <=2.00
Mo (%) 3.0-4.0 3.0-4.0
Ni (%) 11.0-15.0 11.0-15.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=0.75
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 ASTM A959 317L ASTM A240/A240M S31703
Tensile Strength Not specified >=515 MPa
Yield Strength Not specified >=205 MPa
Elongation Not specified >=40%
Hardness Not specified <=217 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 317L
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S31703
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A959 317L Be Substituted With ASTM A240/A240M S31703?
ASTM A959 317L and ASTM A240/A240M S31703 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S31703 is often considered as a substitute for ASTM A959 317L 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 317L
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ASTM A240/A240M S31703
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Frequently Asked Questions
What is the difference between ASTM A959 317L and ASTM A240/A240M S31703?
ASTM A240/A240M S31703 specifies N which is not specified for ASTM A959 317L.
Can ASTM A959 317L be substituted with ASTM A240/A240M S31703?
ASTM A959 317L and ASTM A240/A240M S31703 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S31703 is often considered as a substitute for ASTM A959 317L in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.