IS 11169 (Part 1) 40C8 vs IS 1570 (Part 4) 16Ni3Cr2
Related Material — 65% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 40C8 (IS 11169 (Part 1):2022) and IS 1570 (Part 4) 16Ni3Cr2 (IS 1570 (Part 4):1988) are both steel grades.
IS 11169 (Part 1) 40C8 is classified under Carbon Steel, while IS 1570 (Part 4) 16Ni3Cr2 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below.
IS 11169 (Part 1) 40C8 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 16Ni3Cr2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 11169 (Part 1) 40C8 vs IS 1570 (Part 4) 16Ni3Cr2 is a 68.1% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a related material overall at 65%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 11169 (Part 1) 40C8
IS 1570 (Part 4) 16Ni3Cr2
Core Hardness (CH)
>=40 HRC up to 11 mm
Not specified
Hardness, annealed (+AC)
<=170 HBW
Not specified
Tensile Strength
Not specified
>=690 MPa
Elongation
Not specified
>=15%
Izod Impact
Not specified
>=41 J
Condition
Not specified
Case hardening steel, refined and quenched, core properties
Typical Applications
IS 11169 (Part 1) 40C8
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
IS 1570 (Part 4) 16Ni3Cr2
Not documented
Key Differences
Different category: IS 11169 (Part 1) 40C8 is Carbon Steel, IS 1570 (Part 4) 16Ni3Cr2 is Alloy Steel.
IS 11169 (Part 1) 40C8 specifies Cu, Mo, P, S which are not specified for IS 1570 (Part 4) 16Ni3Cr2.
Can IS 11169 (Part 1) 40C8 Be Substituted With IS 1570 (Part 4) 16Ni3Cr2?
IS 11169 (Part 1) 40C8 and IS 1570 (Part 4) 16Ni3Cr2 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 IS 11169 (Part 1) 40C8 and IS 1570 (Part 4) 16Ni3Cr2?
Different category: IS 11169 (Part 1) 40C8 is Carbon Steel, IS 1570 (Part 4) 16Ni3Cr2 is Alloy Steel. IS 11169 (Part 1) 40C8 specifies Cu, Mo, P, S which are not specified for IS 1570 (Part 4) 16Ni3Cr2.
Can IS 11169 (Part 1) 40C8 be substituted with IS 1570 (Part 4) 16Ni3Cr2?
IS 11169 (Part 1) 40C8 and IS 1570 (Part 4) 16Ni3Cr2 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.