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BS 970 EN58D vs IS 1570 (Part 7) 12Cr12MoH

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

BS 970 EN58D (BS 970:1955) and IS 1570 (Part 7) 12Cr12MoH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. BS 970 EN58D is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr12MoH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 EN58D vs IS 1570 (Part 7) 12Cr12MoH is a 64.7% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 EN58D:
EN 10088-1 1.4845 ASTM A959 .- GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 GB/T 3280 06Cr19Ni10 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Other Stainless Steel Grades to Compare With BS 970 EN58D:
IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
64.7%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property BS 970 EN58D IS 1570 (Part 7) 12Cr12MoH
Standard BS 970:1955 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.16 0.08-0.16
Si (%) >=0.20 <=0.60
Mn (%) <=2.00 0.40-1.00
Ni (%) 11.0-14.0 <=1.0
Cr (%) 11.0-14.0 11.5-13.00
S (%) <=0.045 <=0.035
P (%) <=0.045 <=0.040
Mo (%) Not specified 0.40-0.80
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 EN58D IS 1570 (Part 7) 12Cr12MoH
Tensile Strength ≥541 MPa (35 tons/sq in, converted) 680-880 MPa
Yield Strength ≥185 MPa (12 tons/sq in, converted) >=490 MPa (0.2 % proof stress)
Elongation ≥30% >=20%
Condition , ruling section 6 in (lowest-strength condition of the standard) Bars, forgings, Q+T, thickness up to 75 (first row of Table 3)
Typical Applications
BS 970 EN58D
Not documented
IS 1570 (Part 7) 12Cr12MoH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can BS 970 EN58D Be Substituted With IS 1570 (Part 7) 12Cr12MoH?
BS 970 EN58D and IS 1570 (Part 7) 12Cr12MoH share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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BS 970 EN58D
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IS 1570 (Part 7) 12Cr12MoH
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Frequently Asked Questions
What is the difference between BS 970 EN58D and IS 1570 (Part 7) 12Cr12MoH?
IS 1570 (Part 7) 12Cr12MoH specifies Mo which is not specified for BS 970 EN58D.
Can BS 970 EN58D be substituted with IS 1570 (Part 7) 12Cr12MoH?
BS 970 EN58D and IS 1570 (Part 7) 12Cr12MoH share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.