Our stainless steel pipe couplings offer secure threaded connections. They are made from 304 to 316 stainless steel, widely used in many complex pipelines and environments. We supply full and half couplings with precise NPT, BSPT, and BSPP threads.
| Material | Stainless Steel |
|---|---|
| Material Grade | SS304, SS316 |
| Thread Type | NPT, BSPT, BSPP |
| Standard | ASTM A312 |
| Surface Finish | Polished |
| Size Range | 1/8" – 12" |
| Schedule | SCH 40: 1.73mm-9.53mm, SCH 80: 2.41mm-17.48mm |
| Thread Standard | ASME B1.20.1 |
| Pressure Rating | 150 PSI (SCH 40) / 300 PSI (SCH 80) |
Compared with galvanized or black steel couplings, stainless steel threaded couplings provide:
This makes them ideal for long-term industrial installations.

Economical and versatile for general industrial piping.
Enhanced resistance against chlorides, chemicals, and saltwater exposure.
Our stainless steel threaded couplings are commonly used in:
Thread accuracy directly affects sealing performance.
Our factory uses CNC threading equipment and calibrated gauges to ensure:
Each batch undergoes thread inspection before shipment.
We support customized production for distributors and industrial projects, including:
Material test certificates are available upon request.
Contact us for stainless steel pipe coupling catalogs, technical drawings, and wholesale pricing.