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IS 1570 (Part 4) 20Cr20Mo6 vs IS 4367 25Cr13Mo6

Close Alternative — 81.1% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 20Cr20Mo6 (IS 1570 (Part 4):1988) and IS 4367 25Cr13Mo6 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 20Cr20Mo6 is defined under Bureau of Indian Standards (IS), originating from India, while IS 4367 25Cr13Mo6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 4) 20Cr20Mo6 vs IS 4367 25Cr13Mo6 is a 81.1% 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 81.1%.

Frequently Compared With IS 1570 (Part 4) 20Cr20Mo6:
IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 GB/T 3077 12Cr2Ni4A NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 EN 10028-2 12CrMo9-10 GOST 4543 12HN3A
Match Breakdown
CHEMISTRY MATCH
81.1%
MECHANICAL MATCH
No shared data
OVERALL
81.1%
Specifications
Property IS 1570 (Part 4) 20Cr20Mo6 IS 4367 25Cr13Mo6
Standard IS 1570 (Part 4):1988 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.15-0.25 0.20-0.30
Si (%) <=0.50 0.10-0.35
Mn (%) 0.40-0.70 0.40-0.70
Ni (%) <=0.30 <=0.30
Cr (%) 4.0-6.0 2.90-3.40
Mo (%) 0.45-0.65 0.45-0.65
S (%) Not specified <=0.035
P (%) Not specified <=0.035
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 4) 20Cr20Mo6 IS 4367 25Cr13Mo6
Tensile Strength Not specified 900-1050 MPa
Yield Strength Not specified 700 MPa min
Elongation Not specified >=15%
Izod Impact Not specified 55 J min
Hardness Not specified 266-311 HB
Hardness (soft annealed) Not specified <=230 HB
Condition Not specified Hardened and tempered, ruling section up to 150 mm
Typical Applications
IS 1570 (Part 4) 20Cr20Mo6
Not documented
IS 4367 25Cr13Mo6
Used in boilers, pressure vessels, steam pipes, heat exchangers, refinery equipment, and power plant components.
Key Differences
Can IS 1570 (Part 4) 20Cr20Mo6 Be Substituted With IS 4367 25Cr13Mo6?
IS 1570 (Part 4) 20Cr20Mo6 and IS 4367 25Cr13Mo6 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.
Forms & Sizes Available on M-EX
IS 1570 (Part 4) 20Cr20Mo6
No active listings currently.
IS 4367 25Cr13Mo6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5600–6500 mm (220.47–255.91 in)
On M-EX Right Now
IS 1570 (Part 4) 20Cr20Mo6
0 active listings and RFQs →
IS 4367 25Cr13Mo6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 20Cr20Mo6 and IS 4367 25Cr13Mo6?
IS 4367 25Cr13Mo6 specifies S, P which are not specified for IS 1570 (Part 4) 20Cr20Mo6.
Can IS 1570 (Part 4) 20Cr20Mo6 be substituted with IS 4367 25Cr13Mo6?
IS 1570 (Part 4) 20Cr20Mo6 and IS 4367 25Cr13Mo6 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.