Close Alternative — 84.1% match
based on chemical composition and mechanical property overlap.
EN 10083-3 20MnB5 (EN 10083-3:2006) and IS 11169 (Part 1) 21C10BT (IS 11169 (Part 1):1984) are both steel grades.
Both fall under the Alloy Steel category.
EN 10083-3 20MnB5 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while IS 11169 (Part 1) 21C10BT 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).
EN 10083-3 20MnB5 is defined under European Standard (EN), originating from Europe, while IS 11169 (Part 1) 21C10BT is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10083-3 20MnB5 vs IS 11169 (Part 1) 21C10BT is a 84.1% 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 84.1%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10083-3 20MnB5
IS 11169 (Part 1) 21C10BT
Condition
Quenched and tempered (+QT), ruling section d <= 16 mm
Not specified
Elongation
14% min
Not specified
Tensile Strength
900 to 1050 MPa
Not specified
Yield Strength
700 MPa min
Not specified
Hardness, annealed
Not specified
<=160 HB
Typical Applications
EN 10083-3 20MnB5
Quenched and tempered, flame or induction hardened machine parts (clause 1)
IS 11169 (Part 1) 21C10BT
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Key Differences
EN 10083-3 20MnB5 specifies P, S which are not specified for IS 11169 (Part 1) 21C10BT.
Can EN 10083-3 20MnB5 Be Substituted With IS 11169 (Part 1) 21C10BT?
EN 10083-3 20MnB5 and IS 11169 (Part 1) 21C10BT 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 EN 10083-3 20MnB5 and IS 11169 (Part 1) 21C10BT?
EN 10083-3 20MnB5 specifies P, S which are not specified for IS 11169 (Part 1) 21C10BT.
Can EN 10083-3 20MnB5 be substituted with IS 11169 (Part 1) 21C10BT?
EN 10083-3 20MnB5 and IS 11169 (Part 1) 21C10BT 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.