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ASTM A516/A516M:2025 Grade 65 Steel: Specifications & Listings

ASTM A516/A516M:2025 Grade 65: Grade 65: carbon steel pressure vessel plate for moderate and lower temperature service. Specified in ASTM A516/A516M:2025.

Category: Carbon Steel
Grade Details
GradeASTM A516/A516M:2025 Grade 65
Standard ASTM A516/A516M:2025
ApplicationsWelded pressure vessels where improved notch toughness is important
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
BS 970 (Part 3) 080M15 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 070M20 BS 970 (Part 3):1991 UK No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
BS 970 (Part 3) 080M15 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 3) 070M20 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 3) 150M19 BS 970 (Part 3):1991 Close Alternative
EN 10084 C16E EN 10084:2008 Close Alternative
IS 11169 (Part 1) 15C4 IS 11169 (Part 1):1984 Close Alternative
BS 970 (Part 3) 080A15 BS 970 (Part 3):1991 Close Alternative
EN 10084 C10E EN 10084:2008 Close Alternative
EN 10084 C15E EN 10084:2008 Close Alternative
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn P S Si
<=0.24 0.85-1.20 <=0.025 <=0.025 0.15-0.40
Mechanical Properties
Tensile Strength 450-585 MPa
Yield Strength >=240 MPa
Elongation >=19%
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

More data from ASTM A516/A516M:2025

From the standard
Tensile requirements 4 properties
Tensile strength
450-585 MPa
Yield strength, min
240 MPa
Elongation in 200 mm, min
19%
Elongation in 50 mm, min
23%
Yield by 0.2 % offset or 0.5 % extension-under-load method.
Source: ASTM A516/A516M:2025, Table 2

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