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ASTM A959 XM-2 vs JIS G4304 SUS303

Strong Match — 86.8% match based on chemical composition and mechanical property overlap.

ASTM A959 XM-2 (ASTM A959:2011) and JIS G4304 SUS303 (JIS G4304:2021) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 XM-2 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while JIS G4304 SUS303 is commonly used for hot-rolled stainless steel plates and strips. ASTM A959 XM-2 is defined under ASTM International, originating from United States, while JIS G4304 SUS303 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, ASTM A959 XM-2 vs JIS G4304 SUS303 is a 86.8% 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 86.8%.

Frequently Compared With ASTM A959 XM-2:
ASTM A959 16-8-2H EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
86.8%
MECHANICAL MATCH
No shared data
OVERALL
86.8%
Specifications
Property ASTM A959 XM-2 JIS G4304 SUS303
Standard ASTM A959:2011 JIS G4304:2021
Category Stainless Steel Stainless Steel
Al (%) 0.60-1.00 Not specified
C (%) <=0.15 <=0.15
Cr (%) 17.0-19.0 17.00-19.00
Mn (%) <=2.00 <=2.00
Mo (%) 0.40-0.60 <=0.60
Ni (%) 8.0-10.0 8.00-10.00
P (%) <=0.05 <=0.20
S (%) 0.11-0.16 >=0.15
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.
Mechanical Properties
Property ASTM A959 XM-2 JIS G4304 SUS303
Tensile Strength Not specified >=520 MPa
Yield Strength Not specified >=205 MPa
Elongation Not specified >=35%
Hardness Not specified <=187 HB
Condition Not specified Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser
Typical Applications
ASTM A959 XM-2
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
JIS G4304 SUS303
Hot-rolled stainless steel plates and strips
Key Differences
Can ASTM A959 XM-2 Be Substituted With JIS G4304 SUS303?
ASTM A959 XM-2 and JIS G4304 SUS303 overlap closely enough on chemistry and mechanical properties that JIS G4304 SUS303 is often considered as a substitute for ASTM A959 XM-2 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 XM-2
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JIS G4304 SUS303
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Frequently Asked Questions
What is the difference between ASTM A959 XM-2 and JIS G4304 SUS303?
ASTM A959 XM-2 specifies Al which is not specified for JIS G4304 SUS303.
Can ASTM A959 XM-2 be substituted with JIS G4304 SUS303?
ASTM A959 XM-2 and JIS G4304 SUS303 overlap closely enough on chemistry and mechanical properties that JIS G4304 SUS303 is often considered as a substitute for ASTM A959 XM-2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.