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ASTM A959 303 vs ASTM A959 303Se

Strong Match — 97.2% match based on chemical composition and mechanical property overlap.

ASTM A959 303 (ASTM A959:2011) and ASTM A959 303Se (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 303 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A959 303Se is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A959 303 is defined under ASTM International, originating from United States, while ASTM A959 303Se is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 303 vs ASTM A959 303Se is a 97.2% 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 97.2%.

Frequently Compared With ASTM A959 303:
IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- GB/T 3280 06Cr19Ni10 EN 10088-1 1.4006 IS 1570 (Part 7) 12Cr12MoVH GOST 5632 06Kh23N28 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
97.2%
MECHANICAL MATCH
No shared data
OVERALL
97.2%
Specifications
Property ASTM A959 303 ASTM A959 303Se
Standard ASTM A959:2011 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.15 <=0.15
Cr (%) 17.0-19.0 17.0-19.0
Mn (%) <=2.00 <=2.00
Ni (%) 8.0-10.0 8.0-10.0
P (%) <=0.20 <=0.20
S (%) >=0.15 <=0.06
Si (%) <=1.00 <=1.00
Se (%) Not specified >=0.15
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 303
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A959 303Se
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A959 303 Be Substituted With ASTM A959 303Se?
ASTM A959 303 and ASTM A959 303Se overlap closely enough on chemistry and mechanical properties that ASTM A959 303Se is often considered as a substitute for ASTM A959 303 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 303
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ASTM A959 303Se
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Frequently Asked Questions
What is the difference between ASTM A959 303 and ASTM A959 303Se?
ASTM A959 303Se specifies Se which is not specified for ASTM A959 303.
Can ASTM A959 303 be substituted with ASTM A959 303Se?
ASTM A959 303 and ASTM A959 303Se overlap closely enough on chemistry and mechanical properties that ASTM A959 303Se is often considered as a substitute for ASTM A959 303 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.