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IS 1570 (Part 5) X66Cr13 vs IS 6603 X40Cr13

Close Alternative — 80.6% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 5) X66Cr13 (IS 1570 (Part 5):1985) and IS 6603 X40Cr13 (IS 6603:2024) are both steel grades. Both fall under the Stainless Steel category. IS 1570 (Part 5) X66Cr13 is defined under Bureau of Indian Standards (IS), originating from India, while IS 6603 X40Cr13 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 5) X66Cr13 vs IS 6603 X40Cr13 is a 80.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 80.6%.

Frequently Compared With IS 1570 (Part 5) X66Cr13:
GOST 5632 08X18H10 GOST 5632 12Kh13 EN 10088-1 1.4006 EN 10088-1 1.4301 GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
80.6%
MECHANICAL MATCH
No shared data
OVERALL
80.6%
Specifications
Property IS 1570 (Part 5) X66Cr13 IS 6603 X40Cr13
Standard IS 1570 (Part 5):1985 IS 6603:2024
Category Stainless Steel Stainless Steel
C (%) 0.60-0.72 0.43-0.50
Si (%) <=0.5 <=1.00
Mn (%) 0.40-1.0 <=1.50
Cr (%) 12.0-14.0 12.5-14.5
P (%) Not specified <=0.040
S (%) Not specified <=0.030
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 5) X66Cr13 IS 6603 X40Cr13
Tensile Strength Not specified <=800 MPa
Hardness Not specified <=245 HB
Condition Not specified Soft annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, all sizes; hardness as printed
Typical Applications
IS 1570 (Part 5) X66Cr13
Not documented
IS 6603 X40Cr13
General purposes, semi-finished products, bars, wire rods and bright bars
Key Differences
Can IS 1570 (Part 5) X66Cr13 Be Substituted With IS 6603 X40Cr13?
IS 1570 (Part 5) X66Cr13 and IS 6603 X40Cr13 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
IS 1570 (Part 5) X66Cr13
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IS 6603 X40Cr13
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Frequently Asked Questions
What is the difference between IS 1570 (Part 5) X66Cr13 and IS 6603 X40Cr13?
IS 6603 X40Cr13 specifies P, S which are not specified for IS 1570 (Part 5) X66Cr13.
Can IS 1570 (Part 5) X66Cr13 be substituted with IS 6603 X40Cr13?
IS 1570 (Part 5) X66Cr13 and IS 6603 X40Cr13 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.