SS IC (Stainless Steel Investment Casting) fittings are precision-engineered components used to connect pipes in high-pressure or corrosive environments, manufactured via investment casting for superior dimensional accuracy. Commonly made from SS 304 or SS 316, these durable fittings come in threaded (NPT/BSP) or socket weld types, serving industries like chemical, food, and oil & gas. Key Characteristics & Technical Specifications Manufacturing Method: Investment casting (lost-wax casting) provides a smooth surface finish and tight tolerances. Material Grades: Primarily Stainless Steel 304 (SS304/CF8) and 316 (SS316/CF8M) for high corrosion resistance. Sizes: Typically range from 1/8' NB to 4' NB (Nominal Bore). Pressure Ratings: Often rated for high-pressure applications, such as 3000 lbs (3, 000 PSI) or general 1000 PSI, depending on design specs. Types: Elbows (45°, 90°), Tees (equal/reducing), Reducers (concentric/eccentric), Couplings, Unions, Caps, Nipples (hex/barrel), and Plugs.