Our black carbon steel pipe nipples are manufactured from A53/A106 Grade B carbon steel with a black sand blast surface finish, delivering a clean, uniform appearance with effective surface protection against rust during storage and transit. NPT threads on both ends are precision-machined to ASME B1.20.1 standards, ensuring consistent thread quality and a reliable seal across every piece. The bright-finished thread area contrasts with the black center body — a recognizable mark of our in-house production process and thread precision. Exported directly from our China-based manufacturing facility to distributors, wholesalers, and industrial buyers, our black pipe nipples are available in a full range of sizes with competitive factory pricing and flexible order quantities.
| Material | Carbon Steel |
|---|---|
| Thread Type | NPT |
| Standard | ASTM A53 |
| Material Grade | A53 Gr.B |
| Size Range | 1/8" – 12" |
| Schedule | SCH 40 / SCH 80 |
| Thread Standard | ASME B1.20.1 |
Q: What does “black” finish mean on pipe nipples?
A: Black pipe nipples have a black sand blast surface applied to the center body, providing basic surface protection and a clean appearance. Unlike galvanized nipples, they are not intended for direct water contact or outdoor exposed applications.
Q: Are black pipe nipples suitable for gas lines?
A: Yes. Black carbon steel pipe nipples are the standard choice for natural gas and propane distribution lines in residential and commercial installations, as galvanized coatings can flake and cause issues in gas systems.
Q: Can I order mixed sizes in one shipment?
A: Yes, we support mixed-size orders and container-load shipments combining multiple sizes and specifications.
Q: What is the difference between black and galvanized pipe nipples?
A: Black nipples are used primarily for gas, steam, and industrial applications. Galvanized nipples have a zinc coating for corrosion resistance and are preferred for water supply and outdoor use.
