ZIZI ENGINEERING CO.,LTD
ZIZI ENGINEERING CO., LTD
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Threaded coupling is a very short length of pipe or tube with threads at both ends that allows two pipes to be joined together. The threads usually is internal and NPT in American terms. The diameter of two ends usually is the same, the different sizes is called a reducing coupling.
| Size | 1/8" to 4" / DN6 to DN100 |
| Pressure Rating | Class 2000, 3000, 6000 |
| Standard | ASME B16.11, BS3799, GB/T 14626 |
| Surface | Anti-rust Oil or Galvanized |
Alloy Steel Half Coupling
ASTM A182 F1, F5, F9, F11, F12, F22, F91
Stainless Steel Full Coupling
ASTM A182 F304/304L/304H, F316/316L, F310, F317, F321, F347
Carbon Steel Straight Coupling
ASTM A105, A350 LF2, LF3, A694 F52, F60, F65, F70
Duplex Steel Reducing Coupling
ASTM A182 F51, F53, F55, F56, S 31803, 32205, 32550, 32750, 32760
Chemical Composition
| C | Mn | P | S | Si | Ni | Cr | Mo |
| 0.35 | 0.6-1.05 | 0.035 | 0.04 | 0.1-0.35 | 0.4 | 0.3 | 0.12 |
Mechanical Properties
| Tensile Strength | Yield Strength | Elongation | HB |
| 485 (Mpa) | 250 (Mpa) | 22 (%) | 187 |
Supply Range: 45 Degree & 90 Degree Elbow, Equal Tee & Reducing Tee, Pipe Cap, Full Coupling & Half Coupling, Threaded Nipple, Hex Nipple, Plug, Bushing
Quality Control: In-house Inspection, Third Party Inspection, covers the surface, marking, dimensions and materials. We also supply certifications such as CE, ISO, TEST REPORT and stamp mill test certificate..
Package: Anti Rust Oil, Plastic Bags, Carton and Wooden Box.