ASTM A890 / A890M Grade 7A

Chemical Properties

Carbon, max Manganese, max Silicon, max Phosphorus, max Sulfur, max Chromium Nickel Molybdenum Copper Tungsten Nitrogen Boron Barium

Mechanical Properties

Tensile strength,
ksi [MPa] 		Yield strength,
min, ksi [MPa] 		Elongation in 2 in.
[50 mm], min, %A
Note A: When ICI test bars are used in tensile testing as provided for in this specification, the gage length to reduced section diameter ratio shall be 4:1.

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