Carbon Steel Check Valve & Ball Valve Materials from US Valve. Model Number Valve Type Body Discs Wing Support Request A Quote; 07-1-0* MNPT: Carbon Steel ASTM A106 Gr. B: Aluminum 6061T6: Aluminum 6061T6: Request A Quote: 07-1-4* MNPT: Carbon Steel ASTM A106 Gr. B: Stainless Steel ASTM A240 Gr. 316: Stainless Steel …