Strong Match — 88.4% match
based on chemical composition and mechanical property overlap.
BS 970 EN1A Leaded (BS 970:1955) and BS 970 (Part 1) 220M07 (BS 970 (Part 1):1983) 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 1) 220M07 is commonly used for wrought steel for mechanical and allied engineering purposes; free cutting grade in the as rolled condition (table 2)..
BS 970 EN1A Leaded is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 220M07 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN1A Leaded vs BS 970 (Part 1) 220M07 is a 88.4% 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 88.4%.
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 1) 220M07
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 1) 220M07
Wrought steel for mechanical and allied engineering purposes; free cutting grade in the as rolled condition (Table 2).
Key Differences
BS 970 EN1A Leaded specifies Pb which is not specified for BS 970 (Part 1) 220M07.
BS 970 (Part 1) 220M07 specifies P which is not specified for BS 970 EN1A Leaded.
Can BS 970 EN1A Leaded Be Substituted With BS 970 (Part 1) 220M07?
BS 970 EN1A Leaded and BS 970 (Part 1) 220M07 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 220M07 is often considered as a substitute for BS 970 EN1A Leaded in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between BS 970 EN1A Leaded and BS 970 (Part 1) 220M07?
BS 970 EN1A Leaded specifies Pb which is not specified for BS 970 (Part 1) 220M07. BS 970 (Part 1) 220M07 specifies P which is not specified for BS 970 EN1A Leaded.
Can BS 970 EN1A Leaded be substituted with BS 970 (Part 1) 220M07?
BS 970 EN1A Leaded and BS 970 (Part 1) 220M07 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 220M07 is often considered as a substitute for BS 970 EN1A Leaded in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.