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IS 5517 40Cr7Al10Mo2 vs IS 4367 40Cr4Mo3

Close Alternative — 77.6% match based on chemical composition and mechanical property overlap.

IS 5517 40Cr7Al10Mo2 (IS 5517:1993) and IS 4367 40Cr4Mo3 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. IS 5517 40Cr7Al10Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while IS 4367 40Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 5517 40Cr7Al10Mo2 vs IS 4367 40Cr4Mo3 is a 78.9% match. As per mechanical properties, the match is 75%. Combined, this makes them a close alternative overall at 77.6%.

Frequently Compared With IS 5517 40Cr7Al10Mo2:
IS 1570 (Part 4) 10Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
78.9%
MECHANICAL MATCH
75%
OVERALL
77.6%
Specifications
Property IS 5517 40Cr7Al10Mo2 IS 4367 40Cr4Mo3
Standard IS 5517:1993 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 0.50-0.80
Cr (%) 1.50-1.80 0.90-1.20
Mo (%) 0.10-0.25 0.20-0.35
Al (%) 0.90-1.30 Not specified
S (%) <=0.035 <=0.035
P (%) <=0.035 <=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 5517 40Cr7Al10Mo2 IS 4367 40Cr4Mo3
Tensile Strength 700-850 MPa 700-850 MPa
Yield Strength (0.2% proof) 540 MPa min Not specified
Elongation >=18% >=18%
Izod Impact 55 J min 55 J min
Hardness (annealed) <=230 HB Not specified
Condition Hardened and tempered, ruling section up to 150 mm Hardened and tempered, ruling section up to 150 mm
Yield Strength Not specified 540 MPa min
Hardness Not specified 208-252 HB
Hardness (soft annealed) Not specified <=220 HB
Typical Applications
IS 5517 40Cr7Al10Mo2
Not documented
IS 4367 40Cr4Mo3
gears, crankshafts, connecting rods, heavy duty shafts, high strength bolts, forged components
Key Differences
Can IS 5517 40Cr7Al10Mo2 Be Substituted With IS 4367 40Cr4Mo3?
IS 5517 40Cr7Al10Mo2 and IS 4367 40Cr4Mo3 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 5517 40Cr7Al10Mo2
No active listings currently.
IS 4367 40Cr4Mo3
Round Bar → (4 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5200–6700 mm (204.72–263.78 in)
On M-EX Right Now
IS 5517 40Cr7Al10Mo2
0 active listings and RFQs →
IS 4367 40Cr4Mo3
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 5517 40Cr7Al10Mo2 and IS 4367 40Cr4Mo3?
IS 5517 40Cr7Al10Mo2 specifies Al which is not specified for IS 4367 40Cr4Mo3.
Can IS 5517 40Cr7Al10Mo2 be substituted with IS 4367 40Cr4Mo3?
IS 5517 40Cr7Al10Mo2 and IS 4367 40Cr4Mo3 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.