1/2 inch x 6 inch Black Steel Nipple

1/2 Inch x 6 Inch Black Steel Nipple – Schedule 40, Threaded Ends

This 1/2 inch x 6 inch black steel nipple is manufactured to ASTM A733 standards and designed for Schedule 40 applications. It features male National Pipe Thread (NPT) ends and is intended for use in non-potable water, oil, and gas piping systems. Fabricated from welded black steel pipe, this nipple offers consistent wall thickness and strong mechanical integrity for high-pressure and structural applications.

Key Technical Features

• Material: Welded black steel conforming to ASTM A53, Type E, Grade B
• Length: 6 inches overall
• Nominal Size: 1/2 inch
• Wall Thickness: Schedule 40
• End Connections: Male NPT x Male NPT
• Pressure Rating: Suitable for use in systems up to 150 PSI (dependent on system and code requirements)

Applications

Typically used in mechanical, HVAC, and fire protection systems, this nipple is suitable for use in gas distribution, oil conveyance, and low-pressure steam piping. Not intended for potable water service due to the lack of protective coating inside the pipe. Commonly specified in industrial piping layouts, boiler installations, and commercial plumbing assemblies.

Performance and Durability

• Thread Integrity: Tapered threads are precision-cut per ANSI B1.20.1 to ensure a tight mechanical seal when used with appropriate pipe joint compound or PTFE tape.
• Corrosion Resistance: The exterior black oxide finish helps provide temporary corrosion protection during handling and installation in dry environments.
• Weld Quality: Fusion-welded seam ensures strength across the longitudinal axis, suitable for pressurized piping assemblies.

Installation Guidance

Install using a calibrated pipe wrench and apply thread sealant to NPT ends to ensure leak prevention. Pipe thread engagement should be within standard tolerance (minimum 3.5 full turns for 1/2" NPT). Avoid over-torquing to reduce risk of thread galling or fracture. Always confirm material compatibility with the transported medium.

Regulatory Compliance

Meets applicable ASTM and ANSI dimensional specifications. Verify local mechanical code acceptance for black steel use in fuel gas systems, and confirm that end-use complies with non-potable application restrictions.

This 1/2 inch x 6 inch black steel nipple delivers rugged, code-compliant performance for high-demand mechanical systems. Built for reliability, it integrates seamlessly into threaded black iron piping systems, delivering proven strength and long service life.