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BS 970 (Part 1) 420S37 vs IS 1570 (Part 7) 12Cr13H

Close Alternative — 84.9% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 420S37 (BS 970 (Part 1):1991) and IS 1570 (Part 7) 12Cr13H (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. BS 970 (Part 1) 420S37 is typically used for ferritic and martensitic stainless and heat resisting steel (section five), while IS 1570 (Part 7) 12Cr13H is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. BS 970 (Part 1) 420S37 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr13H is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 420S37 vs IS 1570 (Part 7) 12Cr13H is a 90% 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 84.9%.

Frequently Compared With BS 970 (Part 1) 420S37:
EN 10088-1 1.4006 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo GB/T 3280 06Cr19Ni10 EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
90%
MECHANICAL MATCH
No shared data
OVERALL
84.9%
Specifications
Property BS 970 (Part 1) 420S37 IS 1570 (Part 7) 12Cr13H
Standard BS 970 (Part 1):1991 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) 0.20-0.28 0.09-0.15
Si (%) <=1.0 <=1.00
Mn (%) <=1.0 <=1.00
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.030
Cr (%) 12.0-14.0 11.5-14.00
Ni (%) <=1.00 <=1.00
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) 420S37 IS 1570 (Part 7) 12Cr13H
Tensile Strength Not specified 470-670 MPa
Yield Strength Not specified >=265 MPa (0.2 % proof stress)
Elongation Not specified >=20%
Condition Not specified Bars, forgings, plates, A, thickness up to 160 (first row of Table 3)
Typical Applications
BS 970 (Part 1) 420S37
Ferritic and martensitic stainless and heat resisting steel (section five)
IS 1570 (Part 7) 12Cr13H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Can BS 970 (Part 1) 420S37 Be Substituted With IS 1570 (Part 7) 12Cr13H?
BS 970 (Part 1) 420S37 and IS 1570 (Part 7) 12Cr13H 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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BS 970 (Part 1) 420S37
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IS 1570 (Part 7) 12Cr13H
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 420S37 and IS 1570 (Part 7) 12Cr13H?
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) 420S37 be substituted with IS 1570 (Part 7) 12Cr13H?
BS 970 (Part 1) 420S37 and IS 1570 (Part 7) 12Cr13H 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.