3/4 inch x 1-1/2 inch Black Steel Nipple

3/4" x 1-1/2" Black Steel Nipple – Threaded Schedule 40 Pipe Segment

The 3/4" x 1-1/2" black steel nipple is a short, Schedule 40 pipe section with male NPT threads on both ends. Commonly used for connecting two female-threaded fittings or components, this fitting supports applications in gas, oil, steam, and hydronic piping systems where strength and pressure integrity are required.

Manufactured from welded or seamless carbon steel pipe, this component conforms to industry dimensional standards and is suitable for use in industrial, commercial, and mechanical systems operating under moderate pressure and temperature conditions.

Key Product Attributes

• ✅ Threaded Connections: NPT threads on both ends comply with ANSI B1.20.1 for consistent sealing and fit.
• ✅ Pressure-Ready Construction: Fabricated from carbon steel pipe per ASTM A53 or equivalent for pressure-rated use.
• ✅ Precision Machining: Threads are cut using controlled tooling to ensure tight engagement and leak resistance.
• ✅ Bare Black Finish: Uncoated exterior suitable for oil, steam, and gas piping where galvanization is not required or permitted.
• ✅ Compact Length: Ideal for system tie-ins, manifold extensions, and short-run connections in confined spaces.

Installation Recommendations

Thread sealant or PTFE tape should be applied to male threads prior to installation to ensure a leak-tight joint. Use a pipe wrench on the body of the nipple to maintain thread alignment and avoid deformation. Confirm compatibility with system specifications and code requirements before use.

Application Overview

This black steel nipple is suitable for use in fuel gas distribution, hydronic heating, compressed air, and process piping systems. Frequently installed in boiler rooms, mechanical equipment assemblies, and piping headers where durability and pressure stability are required.

Material Insight

Black steel is commonly used in gas supply systems due to its ability to withstand elevated temperatures and internal pressures without corrosion concerns in dry, sealed environments. Not recommended for potable water applications.

Technical Specifications

• Nominal Size: 3/4" NPT x 1-1/2" Overall Length
• Material: Carbon Steel (Black Finish)
• Wall Thickness: Schedule 40
• Thread Type: NPT, ANSI/ASME B1.20.1
• Manufacturing Standard: ASTM A53, ASME B36.10 (as applicable)

The 3/4" x 1-1/2" black steel nipple is designed for mechanical durability and installation efficiency in pressure-rated systems. Its compact size and threaded ends make it a reliable choice for field installations and system modifications in industrial-grade applications.