Strong Match — 85.9% match
based on chemical composition and mechanical property overlap.
BS 970 EN58A (BS 970:1955) and EN 10088-1 X9CrNi18-9 (EN 10088-1:2014) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN58A is defined under British Standards (BS), originating from United Kingdom, while EN 10088-1 X9CrNi18-9 is defined under European Standard (EN), originating from Europe.
As per chemical composition, BS 970 EN58A vs EN 10088-1 X9CrNi18-9 is a 85.9% 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 85.9%.
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 EN58A
EN 10088-1 X9CrNi18-9
Tensile Strength
≥541 MPa (35 tons/sq in, converted)
Not specified
Yield Strength
≥185 MPa (12 tons/sq in, converted)
Not specified
Elongation
≥30%
Not specified
Condition
, ruling section 6 in (lowest-strength condition of the standard)
Not specified
Typical Applications
BS 970 EN58A
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strength of 35 tons/sq in min.
EN 10088-1 X9CrNi18-9
Not documented
Can BS 970 EN58A Be Substituted With EN 10088-1 X9CrNi18-9?
BS 970 EN58A and EN 10088-1 X9CrNi18-9 overlap closely enough on chemistry and mechanical properties that EN 10088-1 X9CrNi18-9 is often considered as a substitute for BS 970 EN58A 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 EN58A and EN 10088-1 X9CrNi18-9?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN58A be substituted with EN 10088-1 X9CrNi18-9?
BS 970 EN58A and EN 10088-1 X9CrNi18-9 overlap closely enough on chemistry and mechanical properties that EN 10088-1 X9CrNi18-9 is often considered as a substitute for BS 970 EN58A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.