1-1/2 inch x 6 inch Black Steel Nipple

1-1/2" x 6" Black Steel Pipe Nipple – Threaded Connector for Mechanical and Utility Piping

The 1-1/2" x 6" Black Steel Nipple is a carbon steel pipe segment with male NPT threads on both ends, designed for use in threaded piping systems that convey gas, water, oil, or air. This component is suitable for Schedule 40 steel pipe installations requiring rigid linear connections between fittings or valves in residential, commercial, or industrial environments.

Machined to ANSI/ASME B1.20.1 standards, this fitting ensures a reliable thread engagement for leak-resistant joints under standard operating pressures. Its uncoated black finish is intended for non-potable systems in dry or protected mechanical spaces.

Product Features

• ✅ Carbon Steel Body – Manufactured from welded or seamless steel pipe for strength and dimensional stability.
• ✅ Threaded Ends – Tapered male NPT threads provide compatibility with standard female-threaded iron, brass, or steel fittings.
• ✅ 6-Inch Overall Length – Supports intermediate-length extensions for system layout adjustments, offset spacing, or field fabrication needs.
• ✅ Pressure and Temperature Rated – Suitable for fuel gas, air, steam (low-pressure), and general mechanical distribution systems.
• ✅ Non-Galvanized Finish – Intended for indoor or enclosed applications where external corrosion protection is not required.

Installation Requirements

Apply appropriate thread sealant or PTFE tape to male threads prior to installation. Use pipe wrenches for tightening while ensuring alignment with adjacent fittings. Do not overtighten, as thread distortion may compromise sealing. Install in accordance with local plumbing, gas, or mechanical code depending on system application.

Common Applications

Frequently used in:

• Natural gas and propane supply systems
• Boiler feed and return connections
• Air compressor and utility piping
• HVAC hydronic loops and pipe manifolds

Material Note

Black steel pipe nipples are preferred in pressure-rated systems where corrosion resistance is not a primary requirement. Their high tensile strength and compatibility with threaded assembly make them standard components in utility piping configurations.

Technical Specifications

• Material: Black Carbon Steel
• Nominal Size: 1-1/2 inch
• Length: 6 inches
• Thread Type: Male NPT x Male NPT
• Conformance: ANSI/ASME B1.20.1, B36.10M

The 1-1/2" x 6" Black Steel Nipple provides a rigid, pressure-rated solution for mid-length piping connections in gas, mechanical, and industrial systems. Specify where dimensional accuracy, structural integrity, and thread compatibility are essential for field performance.