Minimal Match — 32.7% match
based on chemical composition and mechanical property overlap.
BS 970 EN40C (BS 970:1955) and IS 11169 (Part 1) 10Ni5Cr4 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 EN40C is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable where higher core strength is required for nitriding than en 40b provides; purchaser recommended to consult the manufacturer., while IS 11169 (Part 1) 10Ni5Cr4 is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b).
BS 970 EN40C is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 10Ni5Cr4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN40C vs IS 11169 (Part 1) 10Ni5Cr4 is a 49% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 32.7%.
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 EN40C
IS 11169 (Part 1) 10Ni5Cr4
Tensile Strength
≥1313 MPa (85 tons/sq in, converted)
Not specified
Yield Strength
≥1112 MPa (72 tons/sq in, converted)
Not specified
Elongation
≥10%
Not specified
Hardness
375-444 HB
Not specified
Condition
Hardened and tempered (single condition), ruling section 2 1/2 in (lowest-strength condition of the standard)
Not specified
Hardness, ferrite-pearlite (+FP)
Not specified
137-187 HB
Tensile Strength, annealed (+AC)
Not specified
<=520 MPa (over 5 to 40 mm)
Typical Applications
BS 970 EN40C
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable where higher core strength is required for nitriding than En 40B provides; purchaser recommended to consult the manufacturer.
IS 11169 (Part 1) 10Ni5Cr4
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
BS 970 EN40C specifies Mo, V which are not specified for IS 11169 (Part 1) 10Ni5Cr4.
IS 11169 (Part 1) 10Ni5Cr4 specifies Cu which is not specified for BS 970 EN40C.
Can BS 970 EN40C Be Substituted With IS 11169 (Part 1) 10Ni5Cr4?
BS 970 EN40C and IS 11169 (Part 1) 10Ni5Cr4 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between BS 970 EN40C and IS 11169 (Part 1) 10Ni5Cr4?
BS 970 EN40C specifies Mo, V which are not specified for IS 11169 (Part 1) 10Ni5Cr4. IS 11169 (Part 1) 10Ni5Cr4 specifies Cu which is not specified for BS 970 EN40C.
Can BS 970 EN40C be substituted with IS 11169 (Part 1) 10Ni5Cr4?
BS 970 EN40C and IS 11169 (Part 1) 10Ni5Cr4 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.