IS 4367 20NiCrMo2 vs IS 11169 (Part 1) 21Ni2Cr2Mo2
Strong Match — 95.4% match
based on chemical composition and mechanical property overlap.
IS 4367 20NiCrMo2 (IS 4367:1991) and IS 11169 (Part 1) 21Ni2Cr2Mo2 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
IS 4367 20NiCrMo2 is typically used for nickel-chromium-molybdenum case-hardening steel; used for highly stressed gears, shafts, and transmission components requiring high core strength, toughness, and wear-resistant carburized surface, while IS 11169 (Part 1) 21Ni2Cr2Mo2 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).
IS 4367 20NiCrMo2 is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 21Ni2Cr2Mo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 4367 20NiCrMo2 vs IS 11169 (Part 1) 21Ni2Cr2Mo2 is a 95.4% 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 95.4%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 4367 20NiCrMo2
IS 11169 (Part 1) 21Ni2Cr2Mo2
Tensile Strength
900 MPa min
Not specified
Elongation
>=11%
Not specified
Izod Impact
41 J min
Not specified
Hardness (soft annealed)
<=213 HB
Not specified
Condition
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Not specified
Typical Applications
IS 4367 20NiCrMo2
Nickel-chromium-molybdenum case-hardening steel; used for highly stressed gears, shafts, and transmission components requiring high core strength, toughness, and wear-resistant carburized surface
IS 11169 (Part 1) 21Ni2Cr2Mo2
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) 21Ni2Cr2Mo2 specifies Cu which is not specified for IS 4367 20NiCrMo2.
Can IS 4367 20NiCrMo2 Be Substituted With IS 11169 (Part 1) 21Ni2Cr2Mo2?
IS 4367 20NiCrMo2 and IS 11169 (Part 1) 21Ni2Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 21Ni2Cr2Mo2 is often considered as a substitute for IS 4367 20NiCrMo2 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 IS 4367 20NiCrMo2 and IS 11169 (Part 1) 21Ni2Cr2Mo2?
IS 11169 (Part 1) 21Ni2Cr2Mo2 specifies Cu which is not specified for IS 4367 20NiCrMo2.
Can IS 4367 20NiCrMo2 be substituted with IS 11169 (Part 1) 21Ni2Cr2Mo2?
IS 4367 20NiCrMo2 and IS 11169 (Part 1) 21Ni2Cr2Mo2 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 21Ni2Cr2Mo2 is often considered as a substitute for IS 4367 20NiCrMo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.