Related Material — 56.8% match
based on chemical composition and mechanical property overlap.
BS 970 EN6A (BS 970:1955) and BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
BS 970 EN6A is typically used for bars for machining. en 6a is identical in composition and mechanical properties with en 6 except for the omission of the izod impact value., while BS 970 (Part 1) 055M15 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
BS 970 EN6A is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 055M15 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN6A vs BS 970 (Part 1) 055M15 is a 85.2% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 56.8%.
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 EN6A
BS 970 (Part 1) 055M15
Tensile Strength
494-695 MPa (32-45 tons/sq in, converted)
310 MPa min
Elongation
≥15%
25 % min
Condition
size (diameter or width across flats) Over 2 1/2 in (lowest-strength condition of the standard)
As-rolled
Hardness
Not specified
121 HB min
Typical Applications
BS 970 EN6A
Bars for machining. En 6A is identical in composition and mechanical properties with En 6 except for the omission of the Izod impact value.
BS 970 (Part 1) 055M15
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
BS 970 EN6A specifies Si, S, P which are not specified for BS 970 (Part 1) 055M15.
Can BS 970 EN6A Be Substituted With BS 970 (Part 1) 055M15?
BS 970 EN6A and BS 970 (Part 1) 055M15 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between BS 970 EN6A and BS 970 (Part 1) 055M15?
BS 970 EN6A specifies Si, S, P which are not specified for BS 970 (Part 1) 055M15.
Can BS 970 EN6A be substituted with BS 970 (Part 1) 055M15?
BS 970 EN6A and BS 970 (Part 1) 055M15 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.