ASTM Material Groups

ASTM Group 2-1.1 Materials				ASTM Group 2-2.3 Materials
Nominal	Forgings	Castings	Plates	Nominal	Forgings	Castings	Plates
Designation				Designation
C-Si	A105(1)	A216	A515	16Cr 12Ni 2Mo	A182	…	A240
		Gr.WCB(1)	Gr.70(1)		Gr.F316L		Gr.316L
C Mn Si	A350	…	A516	18Cr 13Ni 3Mo	A182	…	…
	Gr.LF2(1)		Gr.70(1),(2)		Gr.F317L
C Mn Si V	A350	…	A537	18Cr 8Ni	A182	…	A240
	Gr.LF6 Cl 1(3)		Cl.1(4)		Gr.F304L(1)		Gr.304L(1)
3.1/2Ni	A350	…	…
	Gr.LF3
Notes:				Note:
				(1) Do not use over 425°C.
(1) Upon prolonged exposure to temperatures above 425°C, the carbide phase of steel may be converted to graphite. Permissible but not recommended for prolonged use above 425°C.
(2) Do not use over 455°C.
(3) Do not use over 260°C.
(4) Do not use over 370°C.