Close Alternative — 82.7% match
based on chemical composition and mechanical property overlap.
BS 970 EN1A Leaded (BS 970:1955) and BS 970 (Part 3) 230M07 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Free Machining Steel category.
BS 970 EN1A Leaded is typically used for high speed automatic machining, precision parts, while BS 970 (Part 3) 230M07 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; free-cutting steel (table 12).
BS 970 EN1A Leaded is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 3) 230M07 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN1A Leaded vs BS 970 (Part 3) 230M07 is a 82.7% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 82.7%.
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 EN1A Leaded
BS 970 (Part 3) 230M07
Tensile Strength
380–490 MPa
Not specified
Elongation
≥20%
Not specified
Hardness
≤152 HB
Not specified
Typical Applications
BS 970 EN1A Leaded
High speed automatic machining, precision parts
BS 970 (Part 3) 230M07
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; free-cutting steel (Table 12)
Key Differences
BS 970 EN1A Leaded specifies Pb which is not specified for BS 970 (Part 3) 230M07.
BS 970 (Part 3) 230M07 specifies Si, P which are not specified for BS 970 EN1A Leaded.
Can BS 970 EN1A Leaded Be Substituted With BS 970 (Part 3) 230M07?
BS 970 EN1A Leaded and BS 970 (Part 3) 230M07 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 EN1A Leaded and BS 970 (Part 3) 230M07?
BS 970 EN1A Leaded specifies Pb which is not specified for BS 970 (Part 3) 230M07. BS 970 (Part 3) 230M07 specifies Si, P which are not specified for BS 970 EN1A Leaded.
Can BS 970 EN1A Leaded be substituted with BS 970 (Part 3) 230M07?
BS 970 EN1A Leaded and BS 970 (Part 3) 230M07 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.