| Material | Carbon Steel |
|---|---|
| Material Grade | A106 Gr.B, A53 Gr.B |
| Thread Type | NPT, BSPT, BSPP |
| Standard | ASTM A106, ASTM A53 |
| Surface Finish | Black |
| 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) |
Black carbon steel pipe couplings are one of the most commonly used threaded fittings.
Designed for strength and sealing performance, our pipe couplings have precise threading.
Suitable for both standard commercial piping and heavy industrial applications.

Black steel pipe couplings are preferred in applications requiring:
Their durable carbon steel construction makes them suitable for long-term use in demanding industrial environments.
Widely used in:
Low-quality threaded couplings often create installation issues and leakage risks.
Our production process includes:
This ensures better compatibility with international threaded pipe standards.

We supply black steel threaded couplings to:
Flexible MOQ and customized packaging are available.
Send us your required size and thread standard for quotation support.