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IS 6603 X02Cr25Ni7Mo4CuWN vs IS 1570 (Part 7) 12Cr12Ni2Mo

Minimal Match — 25.7% match based on chemical composition and mechanical property overlap.

IS 6603 X02Cr25Ni7Mo4CuWN (IS 6603:2024) and IS 1570 (Part 7) 12Cr12Ni2Mo (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. IS 6603 X02Cr25Ni7Mo4CuWN is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while IS 1570 (Part 7) 12Cr12Ni2Mo is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. IS 6603 X02Cr25Ni7Mo4CuWN is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 7) 12Cr12Ni2Mo is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 6603 X02Cr25Ni7Mo4CuWN vs IS 1570 (Part 7) 12Cr12Ni2Mo is a 38.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 25.7%.

Frequently Compared With IS 6603 X02Cr25Ni7Mo4CuWN:
GOST 5632 06Kh23N28 EN 10088-1 1.4401 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- IS 1570 (Part 7) 12Cr13H
Match Breakdown
CHEMISTRY MATCH
38.5%
MECHANICAL MATCH
0%
OVERALL
25.7%
Specifications
Property IS 6603 X02Cr25Ni7Mo4CuWN IS 1570 (Part 7) 12Cr12Ni2Mo
Standard IS 6603:2024 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.030 0.08-0.16
Si (%) <=1.00 <=0.35
Mn (%) <=1.00 0.50-0.90
P (%) <=0.035 <=0.040
S (%) <=0.015 <=0.030
Cr (%) 24.0-26.0 11.0-12.5
Mo (%) 3.0-4.0 1.5-2.00
Ni (%) 6.0-8.0 2.0-3.0
N (%) 0.20-0.30 0.02-0.04
Cu (%) 0.50-1.00 Not specified
W (%) 0.50-1.00 Not specified
V (%) Not specified 0.25-0.40
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 6603 X02Cr25Ni7Mo4CuWN IS 1570 (Part 7) 12Cr12Ni2Mo
Tensile Strength >=730 MPa 930-1130 MPa
Yield Strength >=530 MPa >=785 MPa (0.2 % proof stress)
Elongation >=25% >=14%
Hardness <=290 HB Not specified
Condition Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Tensile Strength is a minimum as printed, hardness for guidance only Bars, forgings, Q+T, thickness up to 150 (first row of Table 3)
Typical Applications
IS 6603 X02Cr25Ni7Mo4CuWN
General purposes, semi-finished products, bars, wire rods and bright bars
IS 1570 (Part 7) 12Cr12Ni2Mo
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can IS 6603 X02Cr25Ni7Mo4CuWN Be Substituted With IS 1570 (Part 7) 12Cr12Ni2Mo?
IS 6603 X02Cr25Ni7Mo4CuWN and IS 1570 (Part 7) 12Cr12Ni2Mo 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
IS 6603 X02Cr25Ni7Mo4CuWN
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IS 1570 (Part 7) 12Cr12Ni2Mo
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Frequently Asked Questions
What is the difference between IS 6603 X02Cr25Ni7Mo4CuWN and IS 1570 (Part 7) 12Cr12Ni2Mo?
IS 6603 X02Cr25Ni7Mo4CuWN specifies Cu, W which are not specified for IS 1570 (Part 7) 12Cr12Ni2Mo. IS 1570 (Part 7) 12Cr12Ni2Mo specifies V which is not specified for IS 6603 X02Cr25Ni7Mo4CuWN.
Can IS 6603 X02Cr25Ni7Mo4CuWN be substituted with IS 1570 (Part 7) 12Cr12Ni2Mo?
IS 6603 X02Cr25Ni7Mo4CuWN and IS 1570 (Part 7) 12Cr12Ni2Mo 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.