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ASTM A516/A516M Grade 65 vs IS 11169 (Part 1) 15C4

Close Alternative — 84.3% match based on chemical composition and mechanical property overlap.

ASTM A516/A516M Grade 65 (ASTM A516/A516M:2025) and IS 11169 (Part 1) 15C4 (IS 11169 (Part 1):1984) are both steel grades. Both fall under the Carbon Steel category. ASTM A516/A516M Grade 65 is typically used for welded pressure vessels where improved notch toughness is important, while IS 11169 (Part 1) 15C4 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). ASTM A516/A516M Grade 65 is defined under ASTM International, originating from United States, while IS 11169 (Part 1) 15C4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A516/A516M Grade 65 vs IS 11169 (Part 1) 15C4 is a 84.3% 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 84.3%.

Frequently Compared With ASTM A516/A516M Grade 65:
BS 970 (Part 1) 045A10 BS 970 (Part 3) 070M20 BS 970 (Part 3) 080A15 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
84.3%
MECHANICAL MATCH
No shared data
OVERALL
84.3%
Specifications
Property ASTM A516/A516M Grade 65 IS 11169 (Part 1) 15C4
Standard ASTM A516/A516M:2025 IS 11169 (Part 1):1984
Category Carbon Steel Carbon Steel
C (%) <=0.24 <=0.20
Mn (%) 0.85-1.20 0.30-0.60
P (%) <=0.025 Not specified
S (%) <=0.025 Not specified
Si (%) 0.15-0.40 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A516/A516M Grade 65 IS 11169 (Part 1) 15C4
Tensile Strength 450-585 MPa Not specified
Yield Strength >=240 MPa Not specified
Elongation >=19% Not specified
Condition Tension test per Table 2; one set of values for all thicknesses; plates 40 mm and under normally as-rolled, over 40 mm normalized; Elongation is in 200 mm gauge length, 50 mm values in the tensile block Not specified
Hardness, annealed Not specified <=140 HB
Typical Applications
ASTM A516/A516M Grade 65
Welded pressure vessels where improved notch toughness is important
IS 11169 (Part 1) 15C4
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Key Differences
Can ASTM A516/A516M Grade 65 Be Substituted With IS 11169 (Part 1) 15C4?
ASTM A516/A516M Grade 65 and IS 11169 (Part 1) 15C4 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.
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ASTM A516/A516M Grade 65
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IS 11169 (Part 1) 15C4
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Frequently Asked Questions
What is the difference between ASTM A516/A516M Grade 65 and IS 11169 (Part 1) 15C4?
ASTM A516/A516M Grade 65 specifies P, S, Si which are not specified for IS 11169 (Part 1) 15C4.
Can ASTM A516/A516M Grade 65 be substituted with IS 11169 (Part 1) 15C4?
ASTM A516/A516M Grade 65 and IS 11169 (Part 1) 15C4 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.