1/2 inch x 36 inch Black Steel Nipple

1/2" x 36" Black Steel Nipple – Threaded Pipe Section for Gas, Air, and Utility Systems

The 1/2" x 36" Black Steel Nipple is a schedule 40 carbon steel pipe segment with tapered male NPT threads at both ends. Designed for use in low- to moderate-pressure applications, this fitting facilitates direct connections in gas distribution lines, hydronic heating loops, and compressed air systems where standard-length pipe is required for system layout or fixture extension.

Manufactured from welded or seamless ASTM-grade pipe, the nipple features a black oxide finish for corrosion resistance during storage and installation. Threaded to ANSI B1.20.1 specifications, it ensures mechanical compatibility with standard steel, malleable iron, or brass fittings in commercial and industrial systems.

Performance Features

• ✅ Schedule 40 Construction – Suitable for mechanical systems requiring strength and rigidity in threaded piping layouts.
• ✅ Black Oxide Coating – Provides surface rust resistance for indoor, above-ground applications; not rated for potable water or corrosive media.
• ✅ Male NPT Threads – Tapered threads deliver a secure fit when used with approved sealants or thread tape.
• ✅ Carbon Steel Body – Fabricated to meet typical demands for HVAC, air, steam (low-pressure), and fuel gas infrastructure.

Technical Specifications

• Material: Carbon Steel (ASTM A53/A106)
• Nominal Pipe Size: 1/2 inch
• Length: 36 inches
• Ends: Male NPT x Male NPT
• Wall Type: Schedule 40
• Compliance: Threading per ANSI B1.20.1; pipe dimensions per ASME B36.10M

Installation Notes

Use thread sealant or PTFE tape on all male threads to create a leak-resistant joint. Hand-tighten followed by wrench engagement, applying torque appropriate to thread size and material. Avoid over-tightening to prevent thread distortion. This nipple is not intended for direct burial or exposure to corrosive fluids unless additional coating or wrap is applied.

Typical Applications

Installed in gas manifolds, HVAC utility lines, compressed air systems, low-pressure steam piping, and mechanical plant piping. The 36" length is ideal where longer reach or spacing is required between threaded fittings or components.

Regulatory Note

Black steel pipe nipples are approved for use in natural gas and propane distribution when installed in accordance with NFPA 54 (National Fuel Gas Code) or equivalent local standards. Always confirm compatibility and code compliance prior to use in regulated systems.