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IS 11169 (Part 1) 38Cr4Mn2BT vs BS 970 (Part 3) 530M40

Close Alternative — 77% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 38Cr4Mn2BT (IS 11169 (Part 1):1984) and BS 970 (Part 3) 530M40 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Alloy Steel category. IS 11169 (Part 1) 38Cr4Mn2BT 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 BS 970 (Part 3) 530M40 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (table 16). IS 11169 (Part 1) 38Cr4Mn2BT is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 530M40 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 38Cr4Mn2BT vs BS 970 (Part 3) 530M40 is a 77% 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 77%.

Frequently Compared With IS 11169 (Part 1) 38Cr4Mn2BT:
IS 1570 (Part 4) 103Cr4 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 105Cr5 IS 11169 (Part 1) 10Ni5Cr4
Match Breakdown
CHEMISTRY MATCH
77%
MECHANICAL MATCH
No shared data
OVERALL
77%
Specifications
Property IS 11169 (Part 1) 38Cr4Mn2BT BS 970 (Part 3) 530M40
Standard IS 11169 (Part 1):1984 BS 970 (Part 3):1991
Category Alloy Steel Alloy Steel
C (%) 0.35-0.40 0.36-0.44
Mn (%) 0.30-0.50 0.60-0.90
Si (%) 0.15-0.30 0.10-0.40
Cr (%) 0.95-1.15 0.90-1.20
B (%) 0.0005-0.003 Not specified
P (%) Not specified <=0.035
S (%) Not specified <=0.040
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) 38Cr4Mn2BT BS 970 (Part 3) 530M40
Hardness, annealed <=200 HB Not specified
Typical Applications
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)
BS 970 (Part 3) 530M40
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (Table 16)
Key Differences
Can IS 11169 (Part 1) 38Cr4Mn2BT Be Substituted With BS 970 (Part 3) 530M40?
IS 11169 (Part 1) 38Cr4Mn2BT and BS 970 (Part 3) 530M40 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) 38Cr4Mn2BT
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BS 970 (Part 3) 530M40
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 38Cr4Mn2BT and BS 970 (Part 3) 530M40?
IS 11169 (Part 1) 38Cr4Mn2BT specifies B which is not specified for BS 970 (Part 3) 530M40. BS 970 (Part 3) 530M40 specifies P, S which are not specified for IS 11169 (Part 1) 38Cr4Mn2BT.
Can IS 11169 (Part 1) 38Cr4Mn2BT be substituted with BS 970 (Part 3) 530M40?
IS 11169 (Part 1) 38Cr4Mn2BT and BS 970 (Part 3) 530M40 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.