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IS 11169 (Part 1) 40Cr4 vs IS 1570 (Part 4) 103Cr6

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 40Cr4 (IS 11169 (Part 1):1984) and IS 1570 (Part 4) 103Cr6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. IS 11169 (Part 1) 40Cr4 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 103Cr6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 11169 (Part 1) 40Cr4 vs IS 1570 (Part 4) 103Cr6 is a 77.1% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With IS 11169 (Part 1) 40Cr4:
NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4
Match Breakdown
CHEMISTRY MATCH
77.1%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 11169 (Part 1) 40Cr4 IS 1570 (Part 4) 103Cr6
Standard IS 11169 (Part 1):1984 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.35-0.45 0.95-1.10
Mn (%) 0.60-0.90 0.25-0.45
Si (%) 0.10-0.35 0.10-0.35
Cr (%) 0.90-1.20 1.40-1.60
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 11169 (Part 1) 40Cr4 IS 1570 (Part 4) 103Cr6
Tensile Strength (hardened and tempered) 1000-1200 MPa (16 mm) / 900-1180 MPa (40 mm) / 800-950 MPa (100 mm) Not specified
0.2% Proof Stress >=800 MPa (16 mm) / >=680 MPa (40 mm) / >=570 MPa (100 mm) Not specified
Elongation >=11% (16 mm) / >=12% (40 mm) / >=14% (100 mm) Not specified
Hardness, annealed <=200 HB Not specified
Typical Applications
IS 11169 (Part 1) 40Cr4
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
IS 1570 (Part 4) 103Cr6
Not documented
Can IS 11169 (Part 1) 40Cr4 Be Substituted With IS 1570 (Part 4) 103Cr6?
IS 11169 (Part 1) 40Cr4 and IS 1570 (Part 4) 103Cr6 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.
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IS 11169 (Part 1) 40Cr4
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IS 1570 (Part 4) 103Cr6
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 40Cr4 and IS 1570 (Part 4) 103Cr6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 11169 (Part 1) 40Cr4 be substituted with IS 1570 (Part 4) 103Cr6?
IS 11169 (Part 1) 40Cr4 and IS 1570 (Part 4) 103Cr6 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.