Strong Match — 94% match
based on chemical composition and mechanical property overlap.
BS 970 EN59 (BS 970:1955) and IS 1570 (Part 5) X80Cr20Si2Ni1 (IS 1570 (Part 5):1985) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN59 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 5) X80Cr20Si2Ni1 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN59 vs IS 1570 (Part 5) X80Cr20Si2Ni1 is a 94% 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 94%.
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 EN59
IS 1570 (Part 5) X80Cr20Si2Ni1
Hardness
Not specified
255-306 HB
Condition
Not specified
Valve steel, hardened and tempered (Table 6)
Typical Applications
BS 970 EN59
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars.
IS 1570 (Part 5) X80Cr20Si2Ni1
Not documented
Can BS 970 EN59 Be Substituted With IS 1570 (Part 5) X80Cr20Si2Ni1?
BS 970 EN59 and IS 1570 (Part 5) X80Cr20Si2Ni1 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 5) X80Cr20Si2Ni1 is often considered as a substitute for BS 970 EN59 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 EN59 and IS 1570 (Part 5) X80Cr20Si2Ni1?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN59 be substituted with IS 1570 (Part 5) X80Cr20Si2Ni1?
BS 970 EN59 and IS 1570 (Part 5) X80Cr20Si2Ni1 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 5) X80Cr20Si2Ni1 is often considered as a substitute for BS 970 EN59 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.