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ASTM A959 303Se vs EN 10088-1 X9CrNi18-9

Strong Match — 94.8% match based on chemical composition and mechanical property overlap.

ASTM A959 303Se (ASTM A959:2011) and EN 10088-1 X9CrNi18-9 (EN 10088-1:2014) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 303Se is defined under ASTM International, originating from United States, while EN 10088-1 X9CrNi18-9 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A959 303Se vs EN 10088-1 X9CrNi18-9 is a 94.8% 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 94.8%.

Frequently Compared With ASTM A959 303Se:
GOST 5632 06Kh23N28 EN 10088-1 1.4006 ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
94.8%
MECHANICAL MATCH
No shared data
OVERALL
94.8%
Specifications
Property ASTM A959 303Se EN 10088-1 X9CrNi18-9
Standard ASTM A959:2011 EN 10088-1:2014
Category Stainless Steel Stainless Steel
C (%) <=0.15 0.03-0.15
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 <=0.045
S (%) <=0.06 <=0.030
Se (%) >=0.15 Not specified
Si (%) <=1.00 <=1.00
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 303Se
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
EN 10088-1 X9CrNi18-9
Not documented
Key Differences
Can ASTM A959 303Se Be Substituted With EN 10088-1 X9CrNi18-9?
ASTM A959 303Se and EN 10088-1 X9CrNi18-9 overlap closely enough on chemistry and mechanical properties that EN 10088-1 X9CrNi18-9 is often considered as a substitute for ASTM A959 303Se 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 303Se
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EN 10088-1 X9CrNi18-9
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Frequently Asked Questions
What is the difference between ASTM A959 303Se and EN 10088-1 X9CrNi18-9?
ASTM A959 303Se specifies Se which is not specified for EN 10088-1 X9CrNi18-9.
Can ASTM A959 303Se be substituted with EN 10088-1 X9CrNi18-9?
ASTM A959 303Se and EN 10088-1 X9CrNi18-9 overlap closely enough on chemistry and mechanical properties that EN 10088-1 X9CrNi18-9 is often considered as a substitute for ASTM A959 303Se in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.