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BS 970 EN36B vs BS 970 (Part 1) 655H13

Strong Match — 85.6% match based on chemical composition and mechanical property overlap.

BS 970 EN36B (BS 970:1955) and BS 970 (Part 1) 655H13 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN36B is typically used for case hardened gears and heavily loaded components, while BS 970 (Part 1) 655H13 is commonly used for case hardening steel (section four). BS 970 EN36B is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 655H13 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN36B vs BS 970 (Part 1) 655H13 is a 85.6% 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 85.6%.

Frequently Compared With BS 970 EN36B:
NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
85.6%
MECHANICAL MATCH
No shared data
OVERALL
85.6%
Specifications
Property BS 970 EN36B BS 970 (Part 1) 655H13
Standard BS 970:1955 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.10-0.16
Si (%) 0.10-0.35 Not specified
Mn (%) 0.30-0.60 0.35-0.60
Ni (%) 3.00-3.75 3.00-3.75
Cr (%) 0.60-1.10 0.70-1.00
S (%) <=0.050 Not specified
P (%) <=0.050 Not specified
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 EN36B BS 970 (Part 1) 655H13
Tensile Strength ≥1004 MPa (65 tons/sq in, converted) Not specified
Elongation ≥13% Not specified
Condition Core, after heat treatment (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN36B
Case hardened gears and heavily loaded components
BS 970 (Part 1) 655H13
Case hardening steel (section four)
Key Differences
Can BS 970 EN36B Be Substituted With BS 970 (Part 1) 655H13?
BS 970 EN36B and BS 970 (Part 1) 655H13 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 655H13 is often considered as a substitute for BS 970 EN36B 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 EN36B
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4800–5800 mm (188.98–228.35 in)
BS 970 (Part 1) 655H13
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On M-EX Right Now
BS 970 EN36B
2 active listings and RFQs →
BS 970 (Part 1) 655H13
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Frequently Asked Questions
What is the difference between BS 970 EN36B and BS 970 (Part 1) 655H13?
BS 970 EN36B specifies Si, S, P which are not specified for BS 970 (Part 1) 655H13.
Can BS 970 EN36B be substituted with BS 970 (Part 1) 655H13?
BS 970 EN36B and BS 970 (Part 1) 655H13 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 655H13 is often considered as a substitute for BS 970 EN36B in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.