Close Alternative — 78.9% match
based on chemical composition and mechanical property overlap.
BS 970 EN11 (BS 970:1955) and IS 1570 (Part 4) 50Cr4V2 (IS 1570 (Part 4):1988) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 EN11 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 4) 50Cr4V2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN11 vs IS 1570 (Part 4) 50Cr4V2 is a 78.9% 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 78.9%.
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 EN11
IS 1570 (Part 4) 50Cr4V2
Tensile Strength
≥849 MPa (55 tons/sq in, converted)
Not specified
Yield Strength
≥618 MPa (40 tons/sq in, converted)
Not specified
Elongation
≥15%
Not specified
Hardness
248-302 HB
Not specified
Condition
Hardened and tempered T, ruling section 2 1/2 in (lowest-strength condition of the standard)
Not specified
Typical Applications
BS 970 EN11
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile ranges 55/65 (T) and 65/75 (V) tons/sq in; purchaser to state T or V on the order.
IS 1570 (Part 4) 50Cr4V2
Not documented
Key Differences
BS 970 EN11 specifies S, P which are not specified for IS 1570 (Part 4) 50Cr4V2.
IS 1570 (Part 4) 50Cr4V2 specifies V which is not specified for BS 970 EN11.
Can BS 970 EN11 Be Substituted With IS 1570 (Part 4) 50Cr4V2?
BS 970 EN11 and IS 1570 (Part 4) 50Cr4V2 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 EN11 and IS 1570 (Part 4) 50Cr4V2?
BS 970 EN11 specifies S, P which are not specified for IS 1570 (Part 4) 50Cr4V2. IS 1570 (Part 4) 50Cr4V2 specifies V which is not specified for BS 970 EN11.
Can BS 970 EN11 be substituted with IS 1570 (Part 4) 50Cr4V2?
BS 970 EN11 and IS 1570 (Part 4) 50Cr4V2 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.