1-1/2 inch x 24 inch Black Steel Nipple

1-1/2" x 24" Black Steel Nipple – Threaded Ends for High-Duty Piping Connections

The 1-1/2" x 24" black steel nipple is manufactured for use in industrial, mechanical, and commercial piping systems requiring strength and dimensional precision. Designed with NPT-threaded ends, this component provides a rigid, threaded connection between malleable iron or steel pipe fittings and other steel pipe runs.

This nipple is fabricated from seamless black steel pipe and cut to size for direct integration into gas, oil, steam, and hydronic systems where pressure containment and heat resistance are essential. It is commonly used in HVAC systems, boiler loops, fire sprinkler mains, and gas distribution networks.

Performance Advantages

• ✅ Schedule 40 Wall: Supports medium-pressure systems in both vertical and horizontal installations.
• ✅ Seamless Carbon Steel Construction: Reduces the risk of internal stress fractures or longitudinal seam failure under temperature or pressure fluctuations.
• ✅ Fully Threaded Ends: Standard National Pipe Thread (NPT) for compatibility with ANSI-compliant pipe fittings.
• ✅ Corrosion-Resistant Exterior: Black oxide finish provides temporary surface protection for dry environments and interior systems.
• ✅ Dimensional Accuracy: Cut and threaded to ASTM A733 tolerances for consistent fit and sealing integrity.

Technical Specifications

• Nominal Pipe Size: 1-1/2 inch
• Length: 24 inches
• Material: A53/A106 Grade B Black Steel
• Threading: NPT both ends (per ANSI B1.20.1)
• Wall Type: Schedule 40
• Operating Pressure: Pressure-rated per pipe spec and thread-sealant used

Installation Overview

Install using compatible fittings and approved thread sealant for gas or liquid applications. Pipe wrench flats or strap wrenches should be used for torque application to avoid compromising thread integrity. Always inspect threads and interior wall for defects prior to use. Thread engagement should meet minimum depth per fitting class.

Common Applications

• Gas supply piping (natural gas or propane)
• Low- to medium-pressure steam and condensate systems
• Closed-loop hydronic heat lines
• Compressed air or inert gas distribution
• Oil and non-potable fluid transfer lines

Note:

Black steel nipples are not suitable for potable water systems due to lack of corrosion-resistant interior coating. For potable applications, use galvanized or certified brass alternatives per code.

The 1-1/2" x 24" black steel nipple is a dependable component for projects requiring strength, heat tolerance, and pressure resistance. Specified and trusted in commercial and industrial applications, it provides the performance professionals expect in demanding environments.