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IS 6603 X17Cr16Ni2 vs BS 970 (Part 1) 431S29

Strong Match — 87.8% match based on chemical composition and mechanical property overlap.

IS 6603 X17Cr16Ni2 (IS 6603:2024) and BS 970 (Part 1) 431S29 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. IS 6603 X17Cr16Ni2 is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while BS 970 (Part 1) 431S29 is commonly used for stainless and heat resisting steel for mechanical and allied engineering purposes (table 13).. IS 6603 X17Cr16Ni2 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 431S29 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 6603 X17Cr16Ni2 vs BS 970 (Part 1) 431S29 is a 87.8% 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 87.8%.

Frequently Compared With IS 6603 X17Cr16Ni2:
GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo GOST 5632 06Kh23N28 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 ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
87.8%
MECHANICAL MATCH
No shared data
OVERALL
87.8%
Specifications
Property IS 6603 X17Cr16Ni2 BS 970 (Part 1) 431S29
Standard IS 6603:2024 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
C (%) 0.12-0.22 0.12-0.20
Si (%) <=1.00 <=1.0
Mn (%) <=1.50 <=1.0
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.030
Cr (%) 15.0-17.0 15.0-18.0
Ni (%) 1.25-2.50 2.0-3.0
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 X17Cr16Ni2 BS 970 (Part 1) 431S29
Tensile Strength <=950 MPa Not specified
Hardness <=295 HB Not specified
Condition Soft annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, all sizes; hardness as printed Not specified
Typical Applications
IS 6603 X17Cr16Ni2
General purposes, semi-finished products, bars, wire rods and bright bars
BS 970 (Part 1) 431S29
Stainless and heat resisting steel for mechanical and allied engineering purposes (Table 13).
Can IS 6603 X17Cr16Ni2 Be Substituted With BS 970 (Part 1) 431S29?
IS 6603 X17Cr16Ni2 and BS 970 (Part 1) 431S29 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 431S29 is often considered as a substitute for IS 6603 X17Cr16Ni2 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 X17Cr16Ni2
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BS 970 (Part 1) 431S29
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Frequently Asked Questions
What is the difference between IS 6603 X17Cr16Ni2 and BS 970 (Part 1) 431S29?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 6603 X17Cr16Ni2 be substituted with BS 970 (Part 1) 431S29?
IS 6603 X17Cr16Ni2 and BS 970 (Part 1) 431S29 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 431S29 is often considered as a substitute for IS 6603 X17Cr16Ni2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.