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JIS G4304 SUS304Cu vs ASTM A959 .-

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

JIS G4304 SUS304Cu (JIS G4304:2021) and ASTM A959 .- (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. JIS G4304 SUS304Cu is typically used for hot-rolled stainless steel plates and strips, while ASTM A959 .- is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). JIS G4304 SUS304Cu is defined under Japanese Industrial Standards (JIS), originating from Japan, while ASTM A959 .- is defined under ASTM International, originating from United States.

As per chemical composition, JIS G4304 SUS304Cu vs ASTM A959 .- is a 72.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With JIS G4304 SUS304Cu:
GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 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 IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
72.8%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property JIS G4304 SUS304Cu ASTM A959 .-
Standard JIS G4304:2021 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.08 <=0.030
Si (%) <=1.00 <=1.00
Mn (%) <=2.00 <=1.00
P (%) <=0.045 <=0.040
S (%) <=0.030 <=0.030
Ni (%) 8.00-10.50 <=0.50
Cr (%) 18.00-20.00 18.0-20.0
Cu (%) 0.70-1.30 Not specified
Cb (%) Not specified 0.10-0.60
N (%) Not specified <=0.030
Ti (%) Not specified 0.07-0.30
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 SUS304Cu ASTM A959 .-
Tensile Strength >=520 MPa Not specified
Yield Strength >=205 MPa Not specified
Elongation >=40% 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 SUS304Cu
Hot-rolled stainless steel plates and strips
ASTM A959 .-
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can JIS G4304 SUS304Cu Be Substituted With ASTM A959 .-?
JIS G4304 SUS304Cu and ASTM A959 .- share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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JIS G4304 SUS304Cu
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ASTM A959 .-
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Frequently Asked Questions
What is the difference between JIS G4304 SUS304Cu and ASTM A959 .-?
JIS G4304 SUS304Cu specifies Cu which is not specified for ASTM A959 .-. ASTM A959 .- specifies Cb, N, Ti which are not specified for JIS G4304 SUS304Cu.
Can JIS G4304 SUS304Cu be substituted with ASTM A959 .-?
JIS G4304 SUS304Cu and ASTM A959 .- share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.