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ASTM A959 XM-12 vs JIS G4304 SUS630

Close Alternative — 82.9% match based on chemical composition and mechanical property overlap.

ASTM A959 XM-12 (ASTM A959:2011) and JIS G4304 SUS630 (JIS G4304:2021) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 XM-12 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while JIS G4304 SUS630 is commonly used for hot-rolled stainless steel plates and strips. ASTM A959 XM-12 is defined under ASTM International, originating from United States, while JIS G4304 SUS630 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, ASTM A959 XM-12 vs JIS G4304 SUS630 is a 82.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 82.9%.

Frequently Compared With ASTM A959 XM-12:
IS 1570 (Part 7) 12Cr13H ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH GOST 5632 08X18H10 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
82.9%
MECHANICAL MATCH
No shared data
OVERALL
82.9%
Specifications
Property ASTM A959 XM-12 JIS G4304 SUS630
Standard ASTM A959:2011 JIS G4304:2021
Category Stainless Steel Stainless Steel
C (%) <=0.07 <=0.07
Cb (%) 0.15-0.45 Not specified
Cr (%) 14.0-15.5 15.00-17.50
Cu (%) 2.5-4.5 3.00-5.00
Mn (%) <=1.00 <=1.00
Ni (%) 3.5-5.5 3.00-5.00
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.00
Nb (%) Not specified 0.15-0.45
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-12 JIS G4304 SUS630
Hardness Not specified <=363 HB
Condition Not specified Solution heat treated plate and strip (no strength values specified; aged conditions are in the blocks)
Typical Applications
ASTM A959 XM-12
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
JIS G4304 SUS630
Hot-rolled stainless steel plates and strips
Key Differences
Can ASTM A959 XM-12 Be Substituted With JIS G4304 SUS630?
ASTM A959 XM-12 and JIS G4304 SUS630 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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ASTM A959 XM-12
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JIS G4304 SUS630
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Frequently Asked Questions
What is the difference between ASTM A959 XM-12 and JIS G4304 SUS630?
ASTM A959 XM-12 specifies Cb which is not specified for JIS G4304 SUS630. JIS G4304 SUS630 specifies Nb which is not specified for ASTM A959 XM-12.
Can ASTM A959 XM-12 be substituted with JIS G4304 SUS630?
ASTM A959 XM-12 and JIS G4304 SUS630 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.