ASTM A744 / A744M UNS J92710

Chemical Properties

Carbon, max	Manganese, max	Silicon	Phosphorus, max	Sulfur, max	Chromium	Nickel	Columbium

Note A: UNS J92710 shall have a columbium content of not less than eight times the carbon content and not more than 1.0%. If a columbium-plus-tantalum alloy in the approximate Cb:Ta ratio of 3:1 is used for stabilizing this grade, the total columbium-plus-tantalum content shall not be less than nine times the carbon content and shall not exceed 1.1%.

Mechanical Properties

Tensile strength, ksi [MPa]	Yield strength, min, ksi [MPa]	Elongation in 2 in. [50 mm], min, %^A	Reduction of area, min, %

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.

Note B: For low ferrite or nonmagnetic castings of this grade, the following values shall apply: tensile strength, min, 65 ksi [450 MPa]; yield point, min, 28 ksi [195 MPa].