1 inch x 2 inch Black Steel Nipple

1" x 2" Black Steel Nipple – Threaded Pipe Segment for Mechanical and Gas Systems

The 1" x 2" Black Steel Nipple is a Schedule 40 steel pipe component with male NPT threads on both ends. Designed for use in low- to moderate-pressure systems, it is commonly employed in industrial, commercial, and mechanical piping installations. The nipple allows for secure, threaded connections between female fittings or pipe sections in systems requiring short-length extensions or precise component spacing.

Manufactured from welded or seamless black steel pipe in accordance with ASTM A53 or A106 standards, this fitting is suitable for gas, oil, steam, and water systems where corrosion resistance from internal contents is not required. The black oxide finish provides basic exterior protection for indoor or dry environments.

Performance Features

• ✅ Material: Carbon steel construction for structural integrity and durability under pressure.
• ✅ Threading: Machined to ANSI/ASME B1.20.1 NPT standards to ensure a tight, pressure-rated seal with compatible components.
• ✅ Pipe Wall: Schedule 40 wall thickness for use in standard-pressure mechanical and gas systems.
• ✅ Application Range: Designed for non-potable applications including natural gas, compressed air, hydronic heating, and low-pressure steam.

Technical Specifications

• Material: Black Steel – ASTM A53/A106
• Nominal Size: 1 inch
• Length: 2 inches
• End Connections: Male NPT x Male NPT
• Pipe Schedule: Sch. 40
• Standard Compliance: ASME B1.20.1, ASTM A733

Installation Guidance

Before assembly, apply PTFE tape or thread sealant to the male threads to prevent leaks. Avoid over-tightening to prevent thread damage or distortion of connected components. Ensure all components are aligned to avoid mechanical stress. Verify compatibility with adjacent pipe materials and follow local code requirements for gas or pressure system installations.

Typical Use Cases

This nipple is used in HVAC equipment connections, fuel gas distribution lines, pump tie-ins, boiler rooms, and general mechanical systems. It provides short-run threaded extensions or pipe spacing in assemblies where dimensional accuracy and pressure containment are critical.

Code Note

Black steel nipples are approved for use in natural gas systems and other non-potable, low-pressure fluid transport systems as defined by local and national plumbing and mechanical codes. They are not intended for potable water distribution or corrosive fluid applications.

The 1" x 2" Black Steel Nipple offers a reliable connection solution for professional-grade installations where threaded pipe extensions are required. Its durable construction and code-compliant threading support consistent performance in field-assembled systems.