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BS 970 (Part 1) 302S31 vs IS 1570 (Part 5) X07Cr18Ni9

Strong Match — 98.3% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 302S31 (BS 970 (Part 1):1983) and IS 1570 (Part 5) X07Cr18Ni9 (IS 1570 (Part 5):1985) are both steel grades. Both fall under the Stainless Steel category. BS 970 (Part 1) 302S31 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 5) X07Cr18Ni9 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 302S31 vs IS 1570 (Part 5) X07Cr18Ni9 is a 98.3% 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 98.3%.

Frequently Compared With BS 970 (Part 1) 302S31:
EN 10088-1 1.4006 GOST 5632 06Kh23N28 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr13H ASTM A959 .- EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
98.3%
MECHANICAL MATCH
No shared data
OVERALL
98.3%
Specifications
Property BS 970 (Part 1) 302S31 IS 1570 (Part 5) X07Cr18Ni9
Standard BS 970 (Part 1):1983 IS 1570 (Part 5):1985
Category Stainless Steel Stainless Steel
C (%) <=0.12 <=0.15
Si (%) <=1.0 <=1.0
Mn (%) <=2.0 <=2.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Cr (%) 17.0-19.0 17.0-19.0
Ni (%) 8.0-10.0 8.0-10.0
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 302S31 IS 1570 (Part 5) X07Cr18Ni9
Tensile Strength Not specified >=515 MPa
Yield Strength Not specified >=205 MPa (0.2 % proof stress)
Elongation Not specified >=40% (50 mm)
Hardness Not specified <=183 HB; <=88 HRB
Condition Not specified Annealed, quenched or solution treated plates, sheets and strips (Table 2)
Typical Applications
BS 970 (Part 1) 302S31
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
IS 1570 (Part 5) X07Cr18Ni9
Not documented
Can BS 970 (Part 1) 302S31 Be Substituted With IS 1570 (Part 5) X07Cr18Ni9?
BS 970 (Part 1) 302S31 and IS 1570 (Part 5) X07Cr18Ni9 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 5) X07Cr18Ni9 is often considered as a substitute for BS 970 (Part 1) 302S31 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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BS 970 (Part 1) 302S31
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IS 1570 (Part 5) X07Cr18Ni9
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 302S31 and IS 1570 (Part 5) X07Cr18Ni9?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 302S31 be substituted with IS 1570 (Part 5) X07Cr18Ni9?
BS 970 (Part 1) 302S31 and IS 1570 (Part 5) X07Cr18Ni9 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 5) X07Cr18Ni9 is often considered as a substitute for BS 970 (Part 1) 302S31 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.