Chemical Properties

Carbon, max Manganese Phosphorus, max Sulfur, max Silicon Nickel Molybdenum Aluminum, total Nitrogen, max
0.15 0.25-0.66 0.025 0.025 0.18–0.45 4.7–5.3 0.17–0.38 0.01–0.16 0.025
Note A: The specified minimum limit does not apply if the total aluminum is 0.030 % or more, ore if the acid soluble aluminum content is 0.025 % or more.

Mechanical Properties

Yield strength, min,
ksi [MPa]A
Tensile strength,
ksi [MPa]
Elongation in 2 in. [50 mm], min,
%B
65 [450] 95-115 [655-795] 20.0
Note A: At 0.2 % offset, or, if agreed between the purchaser and the manufacturer, at 0.5
Note B: % extension under load.

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