Close Alternative — 71.5% match
based on chemical composition and mechanical property overlap.
KS D3867 SCM415 (KS D 3867:2025) and IS 11169 (Part 1) 12Cr4Mo2 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
KS D3867 SCM415 is typically used for gears, shafts, camshafts, piston pins, precision machine components requiring hard surface and tough core., 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).
KS D3867 SCM415 is defined under Korean Industrial Standards (KS), originating from South Korea, while IS 11169 (Part 1) 12Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, KS D3867 SCM415 vs IS 11169 (Part 1) 12Cr4Mo2 is a 71.5% 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 71.5%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
KS D3867 SCM415
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
KS D3867 SCM415
Gears, shafts, camshafts, piston pins, precision machine components requiring hard surface and tough core.
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 which is not specified for KS D3867 SCM415.
Can KS D3867 SCM415 Be Substituted With IS 11169 (Part 1) 12Cr4Mo2?
KS D3867 SCM415 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 KS D3867 SCM415 and IS 11169 (Part 1) 12Cr4Mo2?
IS 11169 (Part 1) 12Cr4Mo2 specifies Cu which is not specified for KS D3867 SCM415.
Can KS D3867 SCM415 be substituted with IS 11169 (Part 1) 12Cr4Mo2?
KS D3867 SCM415 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.