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IS 6603 X12Cr18Mn9Ni5N vs IS 1570 (Part 7) 12Cr12MoH

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

IS 6603 X12Cr18Mn9Ni5N (IS 6603:2024) and IS 1570 (Part 7) 12Cr12MoH (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Stainless Steel category. IS 6603 X12Cr18Mn9Ni5N is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, 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. IS 6603 X12Cr18Mn9Ni5N is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 7) 12Cr12MoH is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 6603 X12Cr18Mn9Ni5N vs IS 1570 (Part 7) 12Cr12MoH is a 55.7% match. As per mechanical properties, the match is 27.3%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With IS 6603 X12Cr18Mn9Ni5N:
ASTM A959 202 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4006 EN 10088-1 1.4401 EN 10088-1 1.4845 ASTM A959 201 ASTM A959 .- GB/T 3280 06Cr19Ni10 IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
55.7%
MECHANICAL MATCH
27.3%
OVERALL
35%
Specifications
Property IS 6603 X12Cr18Mn9Ni5N IS 1570 (Part 7) 12Cr12MoH
Standard IS 6603:2024 IS 1570 (Part 7):1992
Category Stainless Steel Stainless Steel
C (%) <=0.15 0.08-0.16
Si (%) <=1.00 <=0.60
Mn (%) 7.5-10.0 0.40-1.00
P (%) <=0.060 <=0.040
S (%) <=0.030 <=0.035
Cr (%) 17.5-19.0 11.5-13.00
Ni (%) 4.0-6.0 <=1.0
N (%) 0.15-0.30 Not specified
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 IS 6603 X12Cr18Mn9Ni5N IS 1570 (Part 7) 12Cr12MoH
Tensile Strength 700-900 MPa 680-880 MPa
Yield Strength >=350 MPa >=490 MPa (0.2 % proof stress)
Elongation >=35% >=20%
Condition Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 10 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal) Bars, forgings, Q+T, thickness up to 75 (first row of Table 3)
Typical Applications
IS 6603 X12Cr18Mn9Ni5N
General purposes, semi-finished products, bars, wire rods and bright bars
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 IS 6603 X12Cr18Mn9Ni5N Be Substituted With IS 1570 (Part 7) 12Cr12MoH?
IS 6603 X12Cr18Mn9Ni5N 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
IS 6603 X12Cr18Mn9Ni5N
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IS 1570 (Part 7) 12Cr12MoH
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Frequently Asked Questions
What is the difference between IS 6603 X12Cr18Mn9Ni5N and IS 1570 (Part 7) 12Cr12MoH?
IS 6603 X12Cr18Mn9Ni5N specifies N which is not specified for IS 1570 (Part 7) 12Cr12MoH. IS 1570 (Part 7) 12Cr12MoH specifies Mo which is not specified for IS 6603 X12Cr18Mn9Ni5N.
Can IS 6603 X12Cr18Mn9Ni5N be substituted with IS 1570 (Part 7) 12Cr12MoH?
IS 6603 X12Cr18Mn9Ni5N 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.