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JIS G4304 SUS303 vs ASTM A959 XM-2

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

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

As per chemical composition, JIS G4304 SUS303 vs ASTM A959 XM-2 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 JIS G4304 SUS303:
GB/T 3280 06Cr19Ni10 EN 10088-1 1.4845 ASTM A959 .- GOST 5632 06Kh23N28 EN 10088-1 1.4301 EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H GOST 5632 08X18H10 EN 10088-1 1.4006 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
86.8%
MECHANICAL MATCH
No shared data
OVERALL
86.8%
Specifications
Property JIS G4304 SUS303 ASTM A959 XM-2
Standard JIS G4304:2021 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.15 <=0.15
Si (%) <=1.00 <=1.00
Mn (%) <=2.00 <=2.00
P (%) <=0.20 <=0.05
S (%) >=0.15 0.11-0.16
Ni (%) 8.00-10.00 8.0-10.0
Cr (%) 17.00-19.00 17.0-19.0
Mo (%) <=0.60 0.40-0.60
Al (%) Not specified 0.60-1.00
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4304 SUS303 ASTM A959 XM-2
Tensile Strength >=520 MPa Not specified
Yield Strength >=205 MPa Not specified
Elongation >=35% Not specified
Hardness <=187 HB Not specified
Condition Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser Not specified
Typical Applications
JIS G4304 SUS303
Hot-rolled stainless steel plates and strips
ASTM A959 XM-2
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can JIS G4304 SUS303 Be Substituted With ASTM A959 XM-2?
JIS G4304 SUS303 and ASTM A959 XM-2 overlap closely enough on chemistry and mechanical properties that ASTM A959 XM-2 is often considered as a substitute for JIS G4304 SUS303 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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JIS G4304 SUS303
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ASTM A959 XM-2
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Frequently Asked Questions
What is the difference between JIS G4304 SUS303 and ASTM A959 XM-2?
ASTM A959 XM-2 specifies Al which is not specified for JIS G4304 SUS303.
Can JIS G4304 SUS303 be substituted with ASTM A959 XM-2?
JIS G4304 SUS303 and ASTM A959 XM-2 overlap closely enough on chemistry and mechanical properties that ASTM A959 XM-2 is often considered as a substitute for JIS G4304 SUS303 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.