Carbon steel (CS) socket weld fittings are high-strength forged components governed primarily by ASME B16.11 dimensions and ASTM A105 material specifications. They are built for small-size piping to ensure leak-proof, high-pressure fluid handling. Key Standards and Material Grades • Dimensions: ASME / ANSI B16.11 (forged steel fittings, socket-welding and threaded) • Material Standards: ASTM A105 / ASME SA105 (standard for forged carbon steel piping components) • Low-Temp Carbon Steel: ASTM A350 LF2 (for low-temperature service) • Additional Standards: MSS SP-79 (socket-weld reducers), MSS SP-83 (socket-weld unions), MSS SP-95 Size and Pressure Ratings • Size Range: Typically 1/8″ NB to 4″ NB (DN6 to DN100) for standard applications. • Pressure Classes: Class 3000, Class 6000, and Class 9000. • Schedule Compatibility: Designed to match pipe wall schedules including SCH 40 / STD, SCH 80 / XS, and SCH 160. Common Types of Fittings • Elbows: 45-degree and 90-degree elbows • Tees & Crosses: Equal and reducing tees, standard crosses • Couplings: Full and half couplings • Unions & Caps: Socket weld unions, round end caps • Nipples & Plugs: Bosses, hex/square/round plugs, and swage nipples If you need specific data, tell me:The pressure class or schedule you need (e.g., Class 3000 vs 6000)The fitting type (elbow, tee, coupling)The nominal pipe size (NB)I can provide exact dimensions or weight charts.