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IS 11169 (Part 1) 38C8BT vs IS 11169 (Part 1) 37Cr4

Close Alternative — 72.5% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 38C8BT (IS 11169 (Part 1):2022) and IS 11169 (Part 1) 37Cr4 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. IS 11169 (Part 1) 38C8BT is typically used for cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex c), while IS 11169 (Part 1) 37Cr4 is commonly used for cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex c). IS 11169 (Part 1) 38C8BT is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 37Cr4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 11169 (Part 1) 38C8BT vs IS 11169 (Part 1) 37Cr4 is a 83.7% match. As per mechanical properties, the match is 50%. Combined, this makes them a close alternative overall at 72.5%.

Frequently Compared With IS 11169 (Part 1) 38C8BT:
NF A35-565 100C6 IS 4367 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6
Match Breakdown
CHEMISTRY MATCH
83.7%
MECHANICAL MATCH
50%
OVERALL
72.5%
Specifications
Property IS 11169 (Part 1) 38C8BT IS 11169 (Part 1) 37Cr4
Standard IS 11169 (Part 1):2022 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
B (%) 0.0008-0.005 Not specified
C (%) 0.35-0.40 0.34-0.41
Cr (%) <=0.30 0.90-1.20
Cu (%) <=0.25 <=0.25
Mn (%) 0.60-0.90 0.60-0.90
P (%) <=0.025 <=0.025
S (%) <=0.025 <=0.025
Si (%) <=0.30 <=0.30
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) 38C8BT IS 11169 (Part 1) 37Cr4
Core Hardness (CH) >=48 HRC up to 11 mm >=48 HRC up to 15 mm
Tensile Strength, annealed (+AC) <=570 MPa (over 5 to 40 mm) <=590 MPa (over 5 to 40 mm)
Typical Applications
IS 11169 (Part 1) 38C8BT
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
IS 11169 (Part 1) 37Cr4
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
Key Differences
Can IS 11169 (Part 1) 38C8BT Be Substituted With IS 11169 (Part 1) 37Cr4?
IS 11169 (Part 1) 38C8BT and IS 11169 (Part 1) 37Cr4 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.
On M-EX Right Now
IS 11169 (Part 1) 38C8BT
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IS 11169 (Part 1) 37Cr4
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 38C8BT and IS 11169 (Part 1) 37Cr4?
IS 11169 (Part 1) 38C8BT specifies B which is not specified for IS 11169 (Part 1) 37Cr4.
Can IS 11169 (Part 1) 38C8BT be substituted with IS 11169 (Part 1) 37Cr4?
IS 11169 (Part 1) 38C8BT and IS 11169 (Part 1) 37Cr4 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.