Valve Material Specifications

	CARBON STEEL		ALLOY STEEL				316 STAINLESS
ASTM DESIGNATION	A105	Class 1 A350 LF2	A182 F5	A182 F9	Class 2 A182 F11	Class 3 A182 F22	A182 F316	A182 F316L
Carbon, C	0.22 *	0.22 *	0.15	0.15	0.1-0.2	0.05-0.15	0.08	0.03
Silicon, Si	0.10-0.35	0.15-0.30	0.5	0.5-1.0	0.5-1.0	0.5	1.0	1.0
Manganese, Mn	0.60-1.05	0.60-1.35	0.3-0.6	0.3-0.6	0.3-0.8	0.3-0.6	2.0	2.0
Phosphorus, P	0.035	0.035	0.03	0.03	0.04	0.04	0.045	0.045
Sulfur, S	0.04	0.04	0.03	0.03	0.04	0.04	0.03	0.03
Nickel, Ni	0.4	0.4	0.5				10.0-14.0	10.0-15.0
Chromium, Cr	0.3	0.3	4.0-6.0	8.0-10.0	1.0-1.5	2.0-2.5	16.0-18.0	16.0-18.0
Copper, Cu	0.4	0.4
Vanadium, V	0.08	0.08
Columbium, Cb		0.02
Molybdenum, Mo	0.12	0.12	0.44-1.00	0.9-1.1	0.44-1.00	0.87-1.00	2.0-3.0	2.0-3.0
Tensile, psi, min.	70,000	70,000-95,000	70,000	85,000	70,000	60,000	75,000	70,000
Yield, psi, min.	36,000	36,000	40,000	55,000	40,000	30,000	30,000	25,000
Elongation, %, min.	22	22	20	20	20	20	30	30
R. of Area %, min.	30	30-80	35	40	30	35	50	50
Hardness, HB	187	197	143-217	179-217	143-207	156-207

All materials are per designated ASTM Standards unless otherwise stated.

All values are maximum unless otherwise stated.

* A105 and A350 LF2 offered with reduced carbon