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BS 970 EN36A vs BS 970 (Part 3) 655M13

Strong Match — 88.2% match based on chemical composition and mechanical property overlap.

BS 970 EN36A (BS 970:1955) and BS 970 (Part 3) 655M13 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN36A is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strengths of 55 (en 36a) and 65 (en 36b, en 36c) tons/sq in min., while BS 970 (Part 3) 655M13 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (table 15). BS 970 EN36A is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 3) 655M13 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN36A vs BS 970 (Part 3) 655M13 is a 88.2% 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 88.2%.

Frequently Compared With BS 970 EN36A:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H NF A35-565 100C6 UNI 11234 100Cr6
Match Breakdown
CHEMISTRY MATCH
88.2%
MECHANICAL MATCH
No shared data
OVERALL
88.2%
Specifications
Property BS 970 EN36A BS 970 (Part 3) 655M13
Standard BS 970:1955 BS 970 (Part 3):1991
Category Alloy Steel Alloy Steel
C (%) <=0.15 0.10-0.16
Si (%) 0.10-0.35 0.10-0.40
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 <=0.05
P (%) <=0.050 <=0.04
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 EN36A BS 970 (Part 3) 655M13
Tensile Strength ≥849 MPa (55 tons/sq in, converted) Not specified
Elongation ≥15% Not specified
Condition Core, after heat treatment (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN36A
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strengths of 55 (En 36A) and 65 (En 36B, En 36C) tons/sq in min.
BS 970 (Part 3) 655M13
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
Can BS 970 EN36A Be Substituted With BS 970 (Part 3) 655M13?
BS 970 EN36A and BS 970 (Part 3) 655M13 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 655M13 is often considered as a substitute for BS 970 EN36A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 EN36A
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BS 970 (Part 3) 655M13
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Frequently Asked Questions
What is the difference between BS 970 EN36A and BS 970 (Part 3) 655M13?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN36A be substituted with BS 970 (Part 3) 655M13?
BS 970 EN36A and BS 970 (Part 3) 655M13 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 655M13 is often considered as a substitute for BS 970 EN36A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.