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BS 970 (Part 1) 655H13 vs BS 970 (Part 1) 655M13

Strong Match — 100% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 655H13 (BS 970 (Part 1):1991) and BS 970 (Part 1) 655M13 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 655H13 is typically used for case hardening steel (section four), while BS 970 (Part 1) 655M13 is commonly used for case hardened gears, heavily loaded shafts. BS 970 (Part 1) 655H13 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 655M13 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 655H13 vs BS 970 (Part 1) 655M13 is a 100% 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 100%.

Frequently Compared With BS 970 (Part 1) 655H13:
GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 11169 (Part 1) 12Ni3Cr2 NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
No shared data
OVERALL
100%
Specifications
Property BS 970 (Part 1) 655H13 BS 970 (Part 1) 655M13
Standard BS 970 (Part 1):1991 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.10-0.16 0.10-0.16
Mn (%) 0.35-0.60 0.35-0.60
Cr (%) 0.70-1.00 0.70-1.00
Ni (%) 3.00-3.75 3.00-3.75
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) 655H13 BS 970 (Part 1) 655M13
Condition Not specified Case hardened, 19 mm test bar
Tensile Strength Not specified 1000 MPa min
Elongation Not specified 9 % min
Typical Applications
BS 970 (Part 1) 655H13
Case hardening steel (section four)
BS 970 (Part 1) 655M13
Case hardened gears, heavily loaded shafts
Can BS 970 (Part 1) 655H13 Be Substituted With BS 970 (Part 1) 655M13?
BS 970 (Part 1) 655H13 and BS 970 (Part 1) 655M13 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 655M13 is often considered as a substitute for BS 970 (Part 1) 655H13 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) 655H13
No active listings currently.
BS 970 (Part 1) 655M13
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4200–6300 mm (165.35–248.03 in)
On M-EX Right Now
BS 970 (Part 1) 655H13
0 active listings and RFQs →
BS 970 (Part 1) 655M13
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 655H13 and BS 970 (Part 1) 655M13?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 655H13 be substituted with BS 970 (Part 1) 655M13?
BS 970 (Part 1) 655H13 and BS 970 (Part 1) 655M13 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 655M13 is often considered as a substitute for BS 970 (Part 1) 655H13 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.