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BS 970 EN201 vs BS 970 (Part 1) 125A15

Strong Match — 86.7% match based on chemical composition and mechanical property overlap.

BS 970 EN201 (BS 970:1955) and BS 970 (Part 1) 125A15 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN201 is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strength of 40 tons/sq in min., while BS 970 (Part 1) 125A15 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. BS 970 EN201 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 125A15 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN201 vs BS 970 (Part 1) 125A15 is a 86.7% 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 86.7%.

Frequently Compared With BS 970 EN201:
BS 970 (Part 3) 080A15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
86.7%
MECHANICAL MATCH
No shared data
OVERALL
86.7%
Specifications
Property BS 970 EN201 BS 970 (Part 1) 125A15
Standard BS 970:1955 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) <=0.18 0.13-0.18
Si (%) 0.05-0.35 Not specified
Mn (%) 1.10-1.50 1.10-1.40
S (%) <=0.050 <=0.050
P (%) <=0.050 <=0.050
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 EN201 BS 970 (Part 1) 125A15
Tensile Strength ≥618 MPa (40 tons/sq in, converted) Not specified
Elongation ≥20% Not specified
Condition Core, after heat treatment (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN201
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strength of 40 tons/sq in min.
BS 970 (Part 1) 125A15
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can BS 970 EN201 Be Substituted With BS 970 (Part 1) 125A15?
BS 970 EN201 and BS 970 (Part 1) 125A15 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 125A15 is often considered as a substitute for BS 970 EN201 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 EN201
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BS 970 (Part 1) 125A15
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Frequently Asked Questions
What is the difference between BS 970 EN201 and BS 970 (Part 1) 125A15?
BS 970 EN201 specifies Si which is not specified for BS 970 (Part 1) 125A15.
Can BS 970 EN201 be substituted with BS 970 (Part 1) 125A15?
BS 970 EN201 and BS 970 (Part 1) 125A15 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 125A15 is often considered as a substitute for BS 970 EN201 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.