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IS 6603 X07Cr17Ni7Al vs ASTM A959 635

Close Alternative — 81.9% match based on chemical composition and mechanical property overlap.

IS 6603 X07Cr17Ni7Al (IS 6603:2024) and ASTM A959 635 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. IS 6603 X07Cr17Ni7Al is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while ASTM A959 635 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). IS 6603 X07Cr17Ni7Al is defined under Bureau of Indian Standards (IS), originating from India, while ASTM A959 635 is defined under ASTM International, originating from United States.

As per chemical composition, IS 6603 X07Cr17Ni7Al vs ASTM A959 635 is a 81.9% 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 81.9%.

Frequently Compared With IS 6603 X07Cr17Ni7Al:
GOST 5632 06Kh23N28 IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 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) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
81.9%
MECHANICAL MATCH
No shared data
OVERALL
81.9%
Specifications
Property IS 6603 X07Cr17Ni7Al ASTM A959 635
Standard IS 6603:2024 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.09 <=0.08
Si (%) <=0.70 <=1.00
Mn (%) <=1.00 <=1.00
P (%) <=0.040 <=0.040
S (%) <=0.015 <=0.030
Cr (%) 16.0-18.0 16.0-17.5
Ni (%) 6.5-7.8 6.0-7.5
Al (%) 0.70-1.50 <=0.40
Ti (%) Not specified 0.40-1.20
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 X07Cr17Ni7Al ASTM A959 635
Tensile Strength <=850 MPa Not specified
Hardness <=255 HB Not specified
Condition Solution annealed (+AT), conditions 1C, 1E, 1D, 1X, 1G and 2D; hardness as printed Not specified
Typical Applications
IS 6603 X07Cr17Ni7Al
General purposes, semi-finished products, bars, wire rods and bright bars
ASTM A959 635
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can IS 6603 X07Cr17Ni7Al Be Substituted With ASTM A959 635?
IS 6603 X07Cr17Ni7Al and ASTM A959 635 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.
On M-EX Right Now
IS 6603 X07Cr17Ni7Al
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ASTM A959 635
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Frequently Asked Questions
What is the difference between IS 6603 X07Cr17Ni7Al and ASTM A959 635?
ASTM A959 635 specifies Ti which is not specified for IS 6603 X07Cr17Ni7Al.
Can IS 6603 X07Cr17Ni7Al be substituted with ASTM A959 635?
IS 6603 X07Cr17Ni7Al and ASTM A959 635 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.