ASTM A312 / 312M UNS S34709

Chemical Properties

Carbon	Manganese	Phosphorus	Sulfur	Silicon	Chromium	Nickel	Niobium

Note I: The niobium content shall be not less than ten times the carbon content and not more than 1.00 %.

Mechanical Properties

Tensile strength, min, psi [MPa]	Yield strength, min, psi [MPa]	Elongation in 2 in. or 50 mm
		Basic minimum elongation	For longitudinal strips tests

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