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JIS G4305 SUS315J1 vs BS 970 (Part 1) 303S31

Close Alternative — 72.6% match based on chemical composition and mechanical property overlap.

JIS G4305 SUS315J1 (JIS G4305:2012) and BS 970 (Part 1) 303S31 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. JIS G4305 SUS315J1 is typically used for cold-rolled stainless steel plates, sheet and strip, while BS 970 (Part 1) 303S31 is commonly used for austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (table 14, with table 15 for the cold drawn condition).. JIS G4305 SUS315J1 is defined under Japanese Industrial Standards (JIS), originating from Japan, while BS 970 (Part 1) 303S31 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, JIS G4305 SUS315J1 vs BS 970 (Part 1) 303S31 is a 72.6% 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 72.6%.

Frequently Compared With JIS G4305 SUS315J1:
GB/T 3280 06Cr19Ni10 ASTM A959 .- GOST 5632 06Kh23N28 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
72.6%
MECHANICAL MATCH
No shared data
OVERALL
72.6%
Specifications
Property JIS G4305 SUS315J1 BS 970 (Part 1) 303S31
Standard JIS G4305:2012 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
C (%) <=0.08 <=0.12
Si (%) 0.50-2.50 <=1.0
Mn (%) <=2.00 <=2.0
P (%) <=0.045 <=0.060
S (%) <=0.030 0.15-0.35
Ni (%) 8.50-11.50 8.0-10.0
Cr (%) 17.00-20.50 17.0-19.0
Mo (%) 0.50-1.50 <=1.00
Cu (%) 0.50-3.50 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4305 SUS315J1 BS 970 (Part 1) 303S31
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 G4305 SUS315J1
Cold-rolled stainless steel plates, sheet and strip
BS 970 (Part 1) 303S31
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
Key Differences
Can JIS G4305 SUS315J1 Be Substituted With BS 970 (Part 1) 303S31?
JIS G4305 SUS315J1 and BS 970 (Part 1) 303S31 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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JIS G4305 SUS315J1
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BS 970 (Part 1) 303S31
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Frequently Asked Questions
What is the difference between JIS G4305 SUS315J1 and BS 970 (Part 1) 303S31?
JIS G4305 SUS315J1 specifies Cu which is not specified for BS 970 (Part 1) 303S31.
Can JIS G4305 SUS315J1 be substituted with BS 970 (Part 1) 303S31?
JIS G4305 SUS315J1 and BS 970 (Part 1) 303S31 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.