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ASTM A240/A240M S82121 vs IS 1570 (Part 7) 12Cr12MoVH

Minimal Match — 30.9% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S82121 (ASTM A240/A240M:2025) and IS 1570 (Part 7) 12Cr12MoVH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S82121 is typically used for pressure vessels and general applications (plate, sheet and strip), while IS 1570 (Part 7) 12Cr12MoVH 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 S82121 is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 12Cr12MoVH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A240/A240M S82121 vs IS 1570 (Part 7) 12Cr12MoVH is a 46.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 30.9%.

Frequently Compared With ASTM A240/A240M S82121:
ASTM A959 2304 IS 1570 (Part 7) 12Cr12Ni2Mo GOST 5632 08X18H10 EN 10088-1 1.4301 EN 10088-1 1.4845 ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH
Match Breakdown
CHEMISTRY MATCH
46.3%
MECHANICAL MATCH
0%
OVERALL
30.9%
Specifications
Property ASTM A240/A240M S82121 IS 1570 (Part 7) 12Cr12MoVH
Standard ASTM A240/A240M:2025 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.035 0.08-0.16
Mn (%) 1.00-2.50 0.40-1.00
P (%) <=0.040 <=0.040
S (%) <=0.010 <=0.035
Si (%) <=1.00 <=0.60
Cr (%) 21.0-23.0 11.5-13.00
Ni (%) 2.0-4.0 <=1.0
Mo (%) 0.30-1.30 0.40-0.80
N (%) 0.15-0.25 Not specified
Cu (%) 0.20-1.20 Not specified
V (%) Not specified 0.10-0.30
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 S82121 IS 1570 (Part 7) 12Cr12MoVH
Tensile Strength >=650 MPa 770-930 MPa
Yield Strength >=450 MPa >=585 MPa (0.2 % proof stress)
Elongation >=25% >=15%
Hardness <=286 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Bars, forgings, Q+T, thickness up to 150 (first row of Table 3)
Typical Applications
ASTM A240/A240M S82121
Pressure vessels and general applications (plate, sheet and strip)
IS 1570 (Part 7) 12Cr12MoVH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can ASTM A240/A240M S82121 Be Substituted With IS 1570 (Part 7) 12Cr12MoVH?
ASTM A240/A240M S82121 and IS 1570 (Part 7) 12Cr12MoVH 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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ASTM A240/A240M S82121
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IS 1570 (Part 7) 12Cr12MoVH
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S82121 and IS 1570 (Part 7) 12Cr12MoVH?
ASTM A240/A240M S82121 specifies N, Cu which are not specified for IS 1570 (Part 7) 12Cr12MoVH. IS 1570 (Part 7) 12Cr12MoVH specifies V which is not specified for ASTM A240/A240M S82121.
Can ASTM A240/A240M S82121 be substituted with IS 1570 (Part 7) 12Cr12MoVH?
ASTM A240/A240M S82121 and IS 1570 (Part 7) 12Cr12MoVH 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.