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BS 970 (Part 1) 420S29 vs IS 1570 (Part 7) 12Cr13H

Strong Match — 90.8% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 420S29 (BS 970 (Part 1):1983) 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) 420S29 is typically used for stainless and heat resisting steel for mechanical and allied engineering purposes (table 13)., 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) 420S29 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) 420S29 vs IS 1570 (Part 7) 12Cr13H is a 90.8% 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 90.8%.

Frequently Compared With BS 970 (Part 1) 420S29:
EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 GB/T 3280 06Cr19Ni10 IS 1570 (Part 7) 12Cr12MoVH EN 10088-1 1.4006 GOST 5632 06Kh23N28 GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 .- IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
90.8%
MECHANICAL MATCH
No shared data
OVERALL
90.8%
Specifications
Property BS 970 (Part 1) 420S29 IS 1570 (Part 7) 12Cr13H
Standard BS 970 (Part 1):1983 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) 0.14-0.20 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 (%) 11.5-13.5 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) 420S29 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) 420S29
Stainless and heat resisting steel for mechanical and allied engineering purposes (Table 13).
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) 420S29 Be Substituted With IS 1570 (Part 7) 12Cr13H?
BS 970 (Part 1) 420S29 and IS 1570 (Part 7) 12Cr13H overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 7) 12Cr13H is often considered as a substitute for BS 970 (Part 1) 420S29 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
BS 970 (Part 1) 420S29
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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) 420S29 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) 420S29 be substituted with IS 1570 (Part 7) 12Cr13H?
BS 970 (Part 1) 420S29 and IS 1570 (Part 7) 12Cr13H overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 7) 12Cr13H is often considered as a substitute for BS 970 (Part 1) 420S29 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.