IS 11169 (Part 1) 21C10BT vs IS 11169 (Part 1) 16Mn5Cr4
Close Alternative — 78.6% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 21C10BT (IS 11169 (Part 1):2022) and IS 11169 (Part 1) 16Mn5Cr4 (IS 11169 (Part 1):1984) are both steel grades.
Both fall under the Alloy Steel category.
IS 11169 (Part 1) 21C10BT is typically used for 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), while IS 11169 (Part 1) 16Mn5Cr4 is commonly used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1).
IS 11169 (Part 1) 21C10BT is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 16Mn5Cr4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 11169 (Part 1) 21C10BT vs IS 11169 (Part 1) 16Mn5Cr4 is a 67.9% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 78.6%.
Frequently Compared With IS 11169 (Part 1) 21C10BT:
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) 21C10BT
IS 11169 (Part 1) 16Mn5Cr4
Core Hardness (CH)
>=40 HRC up to 12 mm
Not specified
Hardness, annealed (+AC)
<=160 HBW
Not specified
Core Tensile Strength
Not specified
>=800 MPa (30 mm)
Core Elongation
Not specified
>=10% (30 mm)
Hardness, annealed
Not specified
<=160 HB
Typical Applications
IS 11169 (Part 1) 21C10BT
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 11169 (Part 1) 16Mn5Cr4
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Key Differences
IS 11169 (Part 1) 21C10BT specifies B, Cu, Mo, P which are not specified for IS 11169 (Part 1) 16Mn5Cr4.
Can IS 11169 (Part 1) 21C10BT Be Substituted With IS 11169 (Part 1) 16Mn5Cr4?
IS 11169 (Part 1) 21C10BT and IS 11169 (Part 1) 16Mn5Cr4 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 IS 11169 (Part 1) 21C10BT and IS 11169 (Part 1) 16Mn5Cr4?
IS 11169 (Part 1) 21C10BT specifies B, Cu, Mo, P which are not specified for IS 11169 (Part 1) 16Mn5Cr4.
Can IS 11169 (Part 1) 21C10BT be substituted with IS 11169 (Part 1) 16Mn5Cr4?
IS 11169 (Part 1) 21C10BT and IS 11169 (Part 1) 16Mn5Cr4 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.