Strong Match — 85.2% match
based on chemical composition and mechanical property overlap.
EN 10084 28CrS4 (EN 10084:2008) and IS 11169 (Part 1) 20Cr4 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 28CrS4 is typically used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1), while IS 11169 (Part 1) 20Cr4 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).
EN 10084 28CrS4 is defined under European Standard (EN), originating from Europe, while IS 11169 (Part 1) 20Cr4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10084 28CrS4 vs IS 11169 (Part 1) 20Cr4 is a 85.2% 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 85.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10084 28CrS4
IS 11169 (Part 1) 20Cr4
Condition
Soft annealed
Not specified
Hardenability
+H band at 1.5 mm from the quenched end: 45 to 53 HRC
Not specified
Hardness
Soft annealed: 217 HB max
Not specified
Tensile Strength, annealed (+AC)
Not specified
<=640 MPa (over 10 to 40 mm)
Typical Applications
EN 10084 28CrS4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
IS 11169 (Part 1) 20Cr4
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) 20Cr4 specifies Cu which is not specified for EN 10084 28CrS4.
Can EN 10084 28CrS4 Be Substituted With IS 11169 (Part 1) 20Cr4?
EN 10084 28CrS4 and IS 11169 (Part 1) 20Cr4 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 20Cr4 is often considered as a substitute for EN 10084 28CrS4 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 EN 10084 28CrS4 and IS 11169 (Part 1) 20Cr4?
IS 11169 (Part 1) 20Cr4 specifies Cu which is not specified for EN 10084 28CrS4.
Can EN 10084 28CrS4 be substituted with IS 11169 (Part 1) 20Cr4?
EN 10084 28CrS4 and IS 11169 (Part 1) 20Cr4 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 20Cr4 is often considered as a substitute for EN 10084 28CrS4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.