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IS 11169 (Part 1) 40Cr4 vs IS 11169 (Part 1) 38Cr4Mn2BT

Strong Match — 86.3% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 40Cr4 (IS 11169 (Part 1):1984) and IS 11169 (Part 1) 38Cr4Mn2BT (IS 11169 (Part 1):1984) are both steel grades. Both fall under the Alloy Steel category. IS 11169 (Part 1) 40Cr4 is typically used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1), while IS 11169 (Part 1) 38Cr4Mn2BT is commonly used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1). IS 11169 (Part 1) 40Cr4 is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 38Cr4Mn2BT is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 11169 (Part 1) 40Cr4 vs IS 11169 (Part 1) 38Cr4Mn2BT is a 79.4% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 86.3%.

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 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
79.4%
MECHANICAL MATCH
100%
OVERALL
86.3%
Specifications
Property IS 11169 (Part 1) 40Cr4 IS 11169 (Part 1) 38Cr4Mn2BT
Standard IS 11169 (Part 1):1984 IS 11169 (Part 1):1984
Category Alloy Steel Alloy Steel
C (%) 0.35-0.45 0.35-0.40
Mn (%) 0.60-0.90 0.30-0.50
Si (%) 0.10-0.35 0.15-0.30
Cr (%) 0.90-1.20 0.95-1.15
B (%) Not specified 0.0005-0.003
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 11169 (Part 1) 38Cr4Mn2BT
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 <=200 HB
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 11169 (Part 1) 38Cr4Mn2BT
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Key Differences
Can IS 11169 (Part 1) 40Cr4 Be Substituted With IS 11169 (Part 1) 38Cr4Mn2BT?
IS 11169 (Part 1) 40Cr4 and IS 11169 (Part 1) 38Cr4Mn2BT overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 38Cr4Mn2BT is often considered as a substitute for IS 11169 (Part 1) 40Cr4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
IS 11169 (Part 1) 40Cr4
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IS 11169 (Part 1) 38Cr4Mn2BT
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 40Cr4 and IS 11169 (Part 1) 38Cr4Mn2BT?
IS 11169 (Part 1) 38Cr4Mn2BT specifies B which is not specified for IS 11169 (Part 1) 40Cr4.
Can IS 11169 (Part 1) 40Cr4 be substituted with IS 11169 (Part 1) 38Cr4Mn2BT?
IS 11169 (Part 1) 40Cr4 and IS 11169 (Part 1) 38Cr4Mn2BT overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 38Cr4Mn2BT is often considered as a substitute for IS 11169 (Part 1) 40Cr4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.