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IS 1570 (Part 4) 40Cr5Mo6 vs IS 4367 40Ni6Cr4Mo3

Close Alternative — 76.9% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 40Cr5Mo6 (IS 1570 (Part 4):1988) and IS 4367 40Ni6Cr4Mo3 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 40Cr5Mo6 is defined under Bureau of Indian Standards (IS), originating from India, while IS 4367 40Ni6Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 4) 40Cr5Mo6 vs IS 4367 40Ni6Cr4Mo3 is a 76.9% 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 76.9%.

Frequently Compared With IS 1570 (Part 4) 40Cr5Mo6:
IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 NF A35-565 100C6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 GB/T 3077 12Cr2Ni4A UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
76.9%
MECHANICAL MATCH
No shared data
OVERALL
76.9%
Specifications
Property IS 1570 (Part 4) 40Cr5Mo6 IS 4367 40Ni6Cr4Mo3
Standard IS 1570 (Part 4):1988 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.35-0.45 0.35-0.45
Si (%) 0.10-0.35 0.10-0.35
Mn (%) 0.40-0.70 0.40-0.70
Ni (%) <=0.40 1.25-1.75
Cr (%) 1.00-1.50 0.90-1.30
Mo (%) 0.50-0.70 0.20-0.35
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) 40Cr5Mo6 IS 4367 40Ni6Cr4Mo3
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) 40Cr5Mo6
Not documented
IS 4367 40Ni6Cr4Mo3
aircraft landing gear, high strength shafts, gears, axles, connecting rods, heavy engineering components
Key Differences
Can IS 1570 (Part 4) 40Cr5Mo6 Be Substituted With IS 4367 40Ni6Cr4Mo3?
IS 1570 (Part 4) 40Cr5Mo6 and IS 4367 40Ni6Cr4Mo3 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) 40Cr5Mo6
No active listings currently.
IS 4367 40Ni6Cr4Mo3
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–5200 mm (196.85–204.72 in)
On M-EX Right Now
IS 1570 (Part 4) 40Cr5Mo6
0 active listings and RFQs →
IS 4367 40Ni6Cr4Mo3
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 40Cr5Mo6 and IS 4367 40Ni6Cr4Mo3?
IS 4367 40Ni6Cr4Mo3 specifies S, P which are not specified for IS 1570 (Part 4) 40Cr5Mo6.
Can IS 1570 (Part 4) 40Cr5Mo6 be substituted with IS 4367 40Ni6Cr4Mo3?
IS 1570 (Part 4) 40Cr5Mo6 and IS 4367 40Ni6Cr4Mo3 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.