Close Alternative — 84.9% match
based on chemical composition and mechanical property overlap.
EN 10089 55Si7 (EN 10089:2002) and BS 970 EN46 (BS 970:1955) are both steel grades.
Both fall under the Spring Steel category.
EN 10089 55Si7 is typically used for leaf springs, coil springs, torsion bars, while BS 970 EN46 is commonly used for bars for water hardening and tempering. laminated spring plates to this specification shall conform to the dimensional requirements in appendix c..
EN 10089 55Si7 is defined under European Standard (EN), originating from Europe, while BS 970 EN46 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, EN 10089 55Si7 vs BS 970 EN46 is a 91.7% 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 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
EN 10089 55Si7
BS 970 EN46
Tensile Strength
1000–1200 MPa
Not specified
Yield Strength
≥900 MPa
Not specified
Elongation
≥7%
Not specified
Hardness
285–363 HB
Not specified
Typical Applications
EN 10089 55Si7
Leaf springs, coil springs, torsion bars
BS 970 EN46
Bars for water hardening and tempering. Laminated spring plates to this specification shall conform to the dimensional requirements in Appendix C.
Can EN 10089 55Si7 Be Substituted With BS 970 EN46?
EN 10089 55Si7 and BS 970 EN46 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 EN 10089 55Si7 and BS 970 EN46?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10089 55Si7 be substituted with BS 970 EN46?
EN 10089 55Si7 and BS 970 EN46 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.