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IS 6603 X04Cr19Ni9 vs BS 970 (Part 1) 304S31

Strong Match — 90.6% match based on chemical composition and mechanical property overlap.

IS 6603 X04Cr19Ni9 (IS 6603:2024) and BS 970 (Part 1) 304S31 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. IS 6603 X04Cr19Ni9 is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while BS 970 (Part 1) 304S31 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).. IS 6603 X04Cr19Ni9 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 304S31 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 6603 X04Cr19Ni9 vs BS 970 (Part 1) 304S31 is a 90.6% 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 90.6%.

Frequently Compared With IS 6603 X04Cr19Ni9:
GB/T 3280 06Cr19Ni10 ASTM A959 .- GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
90.6%
MECHANICAL MATCH
No shared data
OVERALL
90.6%
Specifications
Property IS 6603 X04Cr19Ni9 BS 970 (Part 1) 304S31
Standard IS 6603:2024 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
C (%) <=0.08 <=0.07
Si (%) <=1.00 <=1.0
Mn (%) <=2.00 <=2.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Cr (%) 17.5-20.0 17.0-19.0
Ni (%) 8.0-10.5 8.0-11.0
N (%) <=0.10 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 IS 6603 X04Cr19Ni9 BS 970 (Part 1) 304S31
Tensile Strength 510-710 MPa Not specified
Yield Strength >=200 MPa Not specified
Elongation >=40% Not specified
Condition Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal) Not specified
Typical Applications
IS 6603 X04Cr19Ni9
General purposes, semi-finished products, bars, wire rods and bright bars
BS 970 (Part 1) 304S31
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 IS 6603 X04Cr19Ni9 Be Substituted With BS 970 (Part 1) 304S31?
IS 6603 X04Cr19Ni9 and BS 970 (Part 1) 304S31 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 304S31 is often considered as a substitute for IS 6603 X04Cr19Ni9 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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IS 6603 X04Cr19Ni9
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BS 970 (Part 1) 304S31
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Frequently Asked Questions
What is the difference between IS 6603 X04Cr19Ni9 and BS 970 (Part 1) 304S31?
IS 6603 X04Cr19Ni9 specifies N which is not specified for BS 970 (Part 1) 304S31.
Can IS 6603 X04Cr19Ni9 be substituted with BS 970 (Part 1) 304S31?
IS 6603 X04Cr19Ni9 and BS 970 (Part 1) 304S31 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 304S31 is often considered as a substitute for IS 6603 X04Cr19Ni9 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.