Strong Match — 97.1% match
based on chemical composition and mechanical property overlap.
AISI 8620 and IS 11169 (Part 1) 21Ni2Cr2Mo2 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
AISI 8620 is typically used for used for gears, shafts, sprockets, pinions, bushings, and transmission components., 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).
AISI 8620 is defined under AISI, originating from United States, while IS 11169 (Part 1) 21Ni2Cr2Mo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, AISI 8620 vs IS 11169 (Part 1) 21Ni2Cr2Mo2 is a 97.1% 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 97.1%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
AISI 8620
IS 11169 (Part 1) 21Ni2Cr2Mo2
Tensile Strength
750-980 MPa
Not specified
Yield Strength
550-780 MPa
Not specified
Elongation
12-18%
Not specified
Hardness
200-280 HB
Not specified
Typical Applications
AISI 8620
Used for gears, shafts, sprockets, pinions, bushings, and transmission components.
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 AISI 8620.
Can AISI 8620 Be Substituted With IS 11169 (Part 1) 21Ni2Cr2Mo2?
AISI 8620 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 AISI 8620 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 AISI 8620 and IS 11169 (Part 1) 21Ni2Cr2Mo2?
IS 11169 (Part 1) 21Ni2Cr2Mo2 specifies Cu which is not specified for AISI 8620.
Can AISI 8620 be substituted with IS 11169 (Part 1) 21Ni2Cr2Mo2?
AISI 8620 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 AISI 8620 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.