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BS 970 (Part 1) 530M40 vs IS 4367 40Cr4

Strong Match — 92.2% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 530M40 (BS 970 (Part 1):1983) and IS 4367 40Cr4 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 530M40 is typically used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6., while IS 4367 40Cr4 is commonly used for gears, shafts, axles, spindles, bolts, forged components, machine parts. BS 970 (Part 1) 530M40 is defined under British Standards (BS), originating from United Kingdom, while IS 4367 40Cr4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 530M40 vs IS 4367 40Cr4 is a 92.2% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 92.2%.

Frequently Compared With BS 970 (Part 1) 530M40:
NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
92.2%
MECHANICAL MATCH
No shared data
OVERALL
92.2%
Specifications
Property BS 970 (Part 1) 530M40 IS 4367 40Cr4
Standard BS 970 (Part 1):1983 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.36-0.44 0.35-0.45
Mn (%) 0.60-0.90 0.60-0.90
Cr (%) 0.90-1.20 0.90-1.20
P (%) <=0.035 <=0.035
S (%) <=0.040 <=0.035
Si (%) Not specified 0.10-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 530M40 IS 4367 40Cr4
Tensile Strength Not specified 700-850 MPa
Yield Strength Not specified 540 MPa min
Elongation Not specified >=18%
Izod Impact Not specified 55 J min
Hardness Not specified 208-252 HB
Hardness (soft annealed) Not specified <=220 HB
Condition Not specified Hardened and tempered, ruling section up to 100 mm
Typical Applications
BS 970 (Part 1) 530M40
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
IS 4367 40Cr4
gears, shafts, axles, spindles, bolts, forged components, machine parts
Key Differences
Can BS 970 (Part 1) 530M40 Be Substituted With IS 4367 40Cr4?
BS 970 (Part 1) 530M40 and IS 4367 40Cr4 overlap closely enough on chemistry and mechanical properties that IS 4367 40Cr4 is often considered as a substitute for BS 970 (Part 1) 530M40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
BS 970 (Part 1) 530M40
No active listings currently.
IS 4367 40Cr4
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–7000 mm (196.85–275.59 in)
On M-EX Right Now
BS 970 (Part 1) 530M40
0 active listings and RFQs →
IS 4367 40Cr4
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 530M40 and IS 4367 40Cr4?
IS 4367 40Cr4 specifies Si which is not specified for BS 970 (Part 1) 530M40.
Can BS 970 (Part 1) 530M40 be substituted with IS 4367 40Cr4?
BS 970 (Part 1) 530M40 and IS 4367 40Cr4 overlap closely enough on chemistry and mechanical properties that IS 4367 40Cr4 is often considered as a substitute for BS 970 (Part 1) 530M40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.