Related Material — 65.2% match
based on chemical composition and mechanical property overlap.
EN 10083-1 C25R (EN 10083-1:1996) and IS 11169 (Part 1) 40C15 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Carbon Steel category.
EN 10083-1 C25R is typically used for quenched and tempered machine parts; also used normalized (clause 1.1, table 10), while IS 11169 (Part 1) 40C15 is commonly 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).
EN 10083-1 C25R is defined under European Standard (EN), originating from Europe, while IS 11169 (Part 1) 40C15 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10083-1 C25R vs IS 11169 (Part 1) 40C15 is a 65.2% 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 65.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10083-1 C25R
IS 11169 (Part 1) 40C15
Condition
Quenched and tempered, ruling section d <= 16 mm
Not specified
Elongation
19% min
Not specified
Tensile Strength
550 to 700 MPa
Not specified
Yield Strength
370 MPa min
Not specified
Typical Applications
EN 10083-1 C25R
Quenched and tempered machine parts; also used normalized (clause 1.1, Table 10)
IS 11169 (Part 1) 40C15
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)
Key Differences
EN 10083-1 C25R specifies Cr+Mo+Ni, Si which are not specified for IS 11169 (Part 1) 40C15.
IS 11169 (Part 1) 40C15 specifies Cu which is not specified for EN 10083-1 C25R.
Can EN 10083-1 C25R Be Substituted With IS 11169 (Part 1) 40C15?
EN 10083-1 C25R and IS 11169 (Part 1) 40C15 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 EN 10083-1 C25R and IS 11169 (Part 1) 40C15?
EN 10083-1 C25R specifies Cr+Mo+Ni, Si which are not specified for IS 11169 (Part 1) 40C15. IS 11169 (Part 1) 40C15 specifies Cu which is not specified for EN 10083-1 C25R.
Can EN 10083-1 C25R be substituted with IS 11169 (Part 1) 40C15?
EN 10083-1 C25R and IS 11169 (Part 1) 40C15 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.