Chemical Composition

Grade Symbol	UNS Number	Alloy	Elements	Composition %
F316H	S31609	18 chromium, 8 nickel, modified with molybdenum 316HG	Carbon	0.04 - 0.10
			Manganese	2.00 max
			Phosphorus	0.045 max
			Sulfur	0.030 max
			Silicon	1.00 max
			Nickel	10.0 - 14.0
			Chromium	16.0 - 18.0
			Molybdenum	2.00 - 3.00

Mechanical Properties

Property	Value
Tensile Strength, min, ksi [MPa]	75 [515]
Yield Strength, min, ksi [MPa]	30 [205]
Elongation in 2 in. [50mm] or 4D, min, %	30
Reduction or Area, min, %	50

Heat Treatment

After hot working, forgings shall be cooled to a temperature below 1000 °F [538 °C] prior to heat treating in accordance with the requirements.