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ASTM A240/A240M N08031 vs IS 1570 (Part 7) 12Cr12MoH

Minimal Match — 32.2% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M N08031 (ASTM A240/A240M:2025) and IS 1570 (Part 7) 12Cr12MoH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M N08031 is typically used for pressure vessels and general applications (plate, sheet and strip), while IS 1570 (Part 7) 12Cr12MoH is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. ASTM A240/A240M N08031 is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 12Cr12MoH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A240/A240M N08031 vs IS 1570 (Part 7) 12Cr12MoH is a 48.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 32.2%.

Frequently Compared With ASTM A240/A240M N08031:
IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 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 IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
48.3%
MECHANICAL MATCH
0%
OVERALL
32.2%
Specifications
Property ASTM A240/A240M N08031 IS 1570 (Part 7) 12Cr12MoH
Standard ASTM A240/A240M:2025 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.015 0.08-0.16
Mn (%) <=2.00 0.40-1.00
P (%) <=0.020 <=0.040
S (%) <=0.010 <=0.035
Si (%) <=0.30 <=0.60
Cr (%) 26.0-28.0 11.5-13.00
Ni (%) 30.0-32.0 <=1.0
Mo (%) 6.0-7.0 0.40-0.80
N (%) 0.15-0.25 Not specified
Cu (%) 1.0-1.4 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M N08031 IS 1570 (Part 7) 12Cr12MoH
Tensile Strength >=650 MPa 680-880 MPa
Yield Strength >=276 MPa >=490 MPa (0.2 % proof stress)
Elongation >=40% >=20%
Condition Plate, sheet and strip; yield by 0.2 percent offset Bars, forgings, Q+T, thickness up to 75 (first row of Table 3)
Typical Applications
ASTM A240/A240M N08031
Pressure vessels and general applications (plate, sheet and strip)
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 ASTM A240/A240M N08031 Be Substituted With IS 1570 (Part 7) 12Cr12MoH?
ASTM A240/A240M N08031 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.
On M-EX Right Now
ASTM A240/A240M N08031
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IS 1570 (Part 7) 12Cr12MoH
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Frequently Asked Questions
What is the difference between ASTM A240/A240M N08031 and IS 1570 (Part 7) 12Cr12MoH?
ASTM A240/A240M N08031 specifies N, Cu which are not specified for IS 1570 (Part 7) 12Cr12MoH.
Can ASTM A240/A240M N08031 be substituted with IS 1570 (Part 7) 12Cr12MoH?
ASTM A240/A240M N08031 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.