BS 970 (Part 1) 708H20 vs IS 11169 (Part 1) 12Cr4Mo2
Close Alternative — 80% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 708H20 (BS 970 (Part 1):1983) and IS 11169 (Part 1) 12Cr4Mo2 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 (Part 1) 708H20 is typically used for case hardening steel supplied to specified hardenability limits (end quench test, table 10)., while IS 11169 (Part 1) 12Cr4Mo2 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 (Part 1) 708H20 is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 12Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 (Part 1) 708H20 vs IS 11169 (Part 1) 12Cr4Mo2 is a 80% 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 80%.
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 (Part 1) 708H20
IS 11169 (Part 1) 12Cr4Mo2
Hardness, ferrite-pearlite (+FP)
Not specified
135-185 HB
Tensile Strength, annealed (+AC)
Not specified
<=500 MPa (over 5 to 40 mm)
Typical Applications
BS 970 (Part 1) 708H20
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
IS 11169 (Part 1) 12Cr4Mo2
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
IS 11169 (Part 1) 12Cr4Mo2 specifies Cu, Si which are not specified for BS 970 (Part 1) 708H20.
Can BS 970 (Part 1) 708H20 Be Substituted With IS 11169 (Part 1) 12Cr4Mo2?
BS 970 (Part 1) 708H20 and IS 11169 (Part 1) 12Cr4Mo2 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 (Part 1) 708H20 and IS 11169 (Part 1) 12Cr4Mo2?
IS 11169 (Part 1) 12Cr4Mo2 specifies Cu, Si which are not specified for BS 970 (Part 1) 708H20.
Can BS 970 (Part 1) 708H20 be substituted with IS 11169 (Part 1) 12Cr4Mo2?
BS 970 (Part 1) 708H20 and IS 11169 (Part 1) 12Cr4Mo2 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.