ASME/ ANSI B16.9 | ASME B16.28 | MSS-SP-43 | BS1560 | BS4504 | BS10 .
1/2"NB TO 48"NB IN.
Seamless and Welded.
Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS.
Elbow, Equal Tee, U Pipe Bend, Long & Short Stub End, Caps, Lap Joint Stub End
Carbon steel buttweld pipe fittings are vital components in industrial piping systems, valued for their durability and strength. These fittings are crafted from carbon steel, renowned for its robust mechanical properties and cost-effectiveness across various applications. These fittings come in several types, each serving a specific function in piping configurations. Elbows enable directional changes in pipelines, available in angles like 45°, 90°, and 180° to accommodate diverse layout needs. Tees facilitate junctions where three pipes converge, directing flow into two perpendicular directions. Reducers transition between pipes of different diameters, ensuring seamless fluid flow. Caps cap off pipe ends, preventing leaks and maintaining system integrity. Stub ends pair with lap joint flanges for easy alignment and disassembly.
ASTM A234 WPB is a standard specification for carbon steel pipe fittings of seamless and welded construction. These fittings are intended for moderate and high temperature services and are made from seamless or welded pipes. The "WPB" designation indicates the material composition, where "W" stands for weldable, "P" denotes pressure, and "B" indicates the grade.
ASTM A234 WPBW refers to a specific variant within the ASTM A234 standard for carbon steel pipe fittings. The "WPBW" designation signifies that these fittings are made from wrought carbon steel with added requirements for impact testing at low temperatures. The "W" in WPBW indicates that the material is weldable, while "BW" stands for butt weld, which is a common method of joining fittings to pipes.
ASTM A234 WPBX fittings represent a specialized category within ASTM A234/A234M standards, focusing on wrought carbon steel and alloy steel fittings for both seamless and welded construction. Unlike standard grades such as WPB or WPC, WPBX fittings adhere to enhanced requirements that typically include stricter chemical composition limits, specific mechanical properties, or rigorous testing protocols. These fittings find application in industries demanding higher performance and reliability, such as oil and gas, petrochemicals, and power generation. Manufactured with precise adherence to ASTM standards, WPBX fittings undergo thorough testing to ensure they meet stringent criteria for mechanical strength, impact resistance, and dimensional accuracy. This ensures they are well-suited for critical applications where safety, durability, and performance are paramount.
ASTM A234 WPC is a specification under ASTM A234/A234M that covers wrought carbon steel and alloy steel fittings for moderate and elevated temperature service. WPC fittings are specifically designed to withstand higher temperatures and pressures compared to standard-grade fittings like WPB. They offer enhanced impact toughness and are suitable for applications where elevated mechanical properties are required.
ASTM Grade | EN/DIN Equivalent | JIS Equivalent | BS Equivalent | ISO Equivalent |
---|---|---|---|---|
ASTM A234 WPB | 1.0405 (P265GH) | G3454 STPG370 | 3602-1 CFS360 | 2604-II TS26 |
1.5415 (16Mo3) | G3456 STPT370 | 3604-1LT50 | 2604-II TS34 | |
ASTM A234 WPBW | 1.0405 (P265GH) | G3454 STPG370 | 3602-1 CFS360 | 2604-II TS26 |
1.5415 (16Mo3) | G3456 STPT370 | 3604-1LT50 | 2604-II TS34 | |
ASTM A234 WPBX | 1.0405 (P265GH) | G3454 STPG370 | 3602-1 CFS360 | 2604-II TS26 |
1.5415 (16Mo3) | G3456 STPT370 | 3604-1LT50 | 2604-II TS34 | |
ASTM A234 WPC | 1.0425 (P265GH) | G3454 STPG410 | 3602-1 CFS410 | 2604-II TS30 |
1.5415 (16Mo3) | G3456 STPT410 | 3604-1LT50 | 2604-II TS34 |
Element | ASTM A234 WPB (%) | ASTM A234 WPBW (%) | ASTM A234 WPBX (%) | ASTM A234 WPC (%) |
---|---|---|---|---|
Carbon (C) | 0.30-0.35 | 0.30-0.35 | 0.30-0.35 | 0.25 max |
Manganese (Mn) | 0.29-1.06 | 0.29-1.06 | 0.29-1.06 | 1.00-1.50 |
Phosphorus (P) | 0.05 max | 0.05 max | 0.05 max | 0.05 max |
Sulfur (S) | 0.058 max | 0.058 max | 0.058 max | 0.045 max |
Silicon (Si) | 0.10 min | 0.10 min | 0.10 min | 0.10 min |
Chromium (Cr) | - | - | - | - |
Molybdenum (Mo) | - | - | - | - |
Nickel (Ni) | - | - | - | - |
Copper (Cu) | - | - | - | - |
Property | ASTM A234 WPB | ASTM A234 WPBW | ASTM A234 WPBX | ASTM A234 WPC |
---|---|---|---|---|
Tensile Strength | 60,000 psi (415 MPa) min | 60,000 psi (415 MPa) min | 60,000 psi (415 MPa) min | 70,000 psi (485 MPa) min |
Yield Strength | 35,000 psi (240 MPa) min | 35,000 psi (240 MPa) min | 35,000 psi (240 MPa) min | 40,000 psi (275 MPa) min |
Elongation | 22% min | 22% min | 22% min | 20% min |
Hardness (Brinell) | Not specified | Not specified | Not specified | Not specified |
Impact Testing Temperature | Not required | -20°F (-29°C) | -50°F (-46°C) | -20°F (-29°C) |