Close Alternative — 84.9% match
based on chemical composition and mechanical property overlap.
BS 970 EN12C (BS 970:1955) and BS 970 EN12A (BS 970:1955) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 EN12C is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN12A is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN12C vs BS 970 EN12A is a 91.4% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 84.9%.
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 EN12C
BS 970 EN12A
Tensile Strength
≥541 MPa (35 tons/sq in, converted)
≥541 MPa (35 tons/sq in, converted)
Yield Strength
≥309 MPa (20 tons/sq in, converted)
≥309 MPa (20 tons/sq in, converted)
Elongation
≥20%
≥20%
Hardness
152-207 HB
152-207 HB
Condition
Normalised, ruling section 6 in (lowest-strength condition of the standard)
Normalised, ruling section 6 in (lowest-strength condition of the standard)
Can BS 970 EN12C Be Substituted With BS 970 EN12A?
BS 970 EN12C and BS 970 EN12A are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between BS 970 EN12C and BS 970 EN12A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN12C be substituted with BS 970 EN12A?
BS 970 EN12C and BS 970 EN12A are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.