1 inch x 36 inch Black Steel Nipple

1" x 36" Black Steel Pipe Nipple – Manufactured for High-Integrity Threaded Connections

The 1" x 36" black steel nipple is a threaded pipe segment used to extend pipe runs or connect fittings in a straight line. Commonly employed in gas, oil, air, and water systems, this component is fabricated from schedule 40 black steel pipe and is designed to handle high-pressure and high-temperature environments in accordance with ASME and ASTM standards.

Both ends are threaded to NPT (National Pipe Tapered) specifications, providing compatibility with standard pipe fittings used in residential, commercial, and industrial systems. Its 36-inch length allows for bridging wider spans or connecting distant system elements without the need for multiple couplings or unions.

Product Specifications

• Nominal Size: 1 inch
• Length: 36 inches (measured end-to-end including threads)
• Material: Black steel (Schedule 40)
• Ends: NPT male threads both ends
• Compliance: Conforms to ASTM A53 and ANSI B1.20.1

Typical Applications

• Natural gas and propane supply lines (where permitted by code)
• Hydronic heating distribution systems
• Compressed air piping in industrial settings
• General-purpose plumbing in non-potable water systems

Installation Guidance

Threaded black steel nipples require careful installation to prevent leaks. Use of PTFE tape or approved pipe joint compound is essential. Ensure thread engagement without overtightening, which may damage fittings or compromise thread integrity. For gas service, pressure testing per NFPA 54 or local code is mandatory prior to use.

Key Performance Advantages

• High Tensile Strength: Suitable for use in pressurized systems and structural applications
• Corrosion Resistant Interior: Black steel offers adequate performance in dry air or gas lines (not intended for potable water use)
• Reduced Component Count: Extended length minimizes need for additional couplings
• Industry Standard Threads: Ensures reliable compatibility with a wide range of fittings

Note:

Black steel nipples are not suitable for use in potable water systems. For such applications, use galvanized or brass pipe that meets NSF/ANSI 61 requirements.

The 1" x 36" black steel pipe nipple provides strength, dimensional accuracy, and reliable performance in pressure-rated systems. Its extended length is ideal for long-span applications requiring minimal joints and mechanical durability under demanding service conditions.