2 inch x 36 inch Black Steel Nipple

2" x 36" Black Steel Nipple – Threaded Schedule 40 Carbon Steel Pipe Section

The 2" x 36" Black Steel Nipple is a schedule-grade, threaded carbon steel pipe segment used to extend piping systems or connect threaded components in gas, hydronic, or general service systems. Manufactured from ASTM A53 Grade A or B welded or seamless pipe, this nipple is finished with a black oxide coating to resist oxidation during storage and handling.

Both ends are equipped with tapered male NPT threads for compatibility with standard cast iron, malleable iron, steel, or brass fittings. The 36" length supports longer uninterrupted runs, minimizing the need for couplings or additional joint assemblies.

Field-Ready Performance Characteristics

• ✅ Standard Wall Thickness – Constructed to Schedule 40 dimensions for compatibility with a broad range of industrial and mechanical piping systems.
• ✅ Threaded Ends – NPT threads comply with ANSI B1.20.1 standards for pressure-tight sealing in joined assemblies.
• ✅ Corrosion-Resistant Coating – Black oxide finish provides temporary resistance to rust during transportation and installation; not intended for potable water applications.
• ✅ Structural Rigidity – Suitable for high-temperature and high-pressure systems including steam, compressed air, and fuel gas distribution.
• ✅ Precision Cut Length – 36-inch dimension accommodates installations requiring extended span without midline fittings.

Technical Specifications

• Material: Carbon Steel (ASTM A53/A106)
• Size: 2-inch nominal diameter
• Length: 36 inches (threaded both ends)
• Wall Type: Schedule 40
• Connection Type: NPT Male x NPT Male
• Surface Finish: Black oxide coating
• Standards: ASME B36.10M, ANSI B1.20.1, and API 5L (depending on pipe origin)

Installation Guidelines

Install using compatible female-threaded fittings. Apply PTFE thread sealant or pipe joint compound per system pressure and media type. Avoid over-tightening to prevent stress cracks at threaded joints. This product is not designed for underground use without supplemental protection or coating.

Common Applications

Used in commercial and industrial piping systems for compressed air, fuel gas, steam, process water, and fire protection where welded or flanged connections are not required. Ideal for boiler rooms, mechanical spaces, and industrial facilities requiring threaded steel piping infrastructure.

Code Compliance Note

This black steel nipple is not approved for potable water systems. For pressure-rated applications involving drinking water, use galvanized or certified alternatives. Confirm system compatibility with local code and inspector requirements before installation.