2 inch x 12 inch Black Steel Nipple

2" x 12" Black Steel Pipe Nipple – Manufactured for Heavy-Duty Threaded Connections

The 2" x 12" black steel nipple is fabricated from schedule 40 welded black steel pipe and threaded on both ends to ANSI/ASME B1.20.1 NPT specifications. Designed for integration into gas, oil, steam, and hydronic systems, this component ensures continuity between fittings or extends pipeline lengths where needed.

Constructed for compatibility with black malleable iron and cast iron fittings, this nipple supports high-pressure applications and thermal loads, offering a secure, leak-resistant solution across a wide range of mechanical and plumbing installations.

Application Highlights

• Pressure Handling: Suitable for non-potable systems under moderate to high working pressures
• Thread Accuracy: Machined to tight tolerances to ensure uniform engagement and seal integrity
• Material Grade: Manufactured from black steel per ASTM A53, Type E or S, Grade A or B
• Service Use: Ideal for natural gas lines, steam distribution, compressed air systems, and closed-loop heating circuits
• Welded Seam Construction: Electrically welded pipe for structural stability and pressure endurance

Technical Specifications

• Nominal Size: 2 inch
• Length: 12 inches (end-to-end including thread allowance)
• Pipe Schedule: Schedule 40
• Thread Type: NPT male (both ends)
• Compliance: Meets ASTM A53 / ANSI B1.20.1 / ASME B31.3 process piping standards

Installation Considerations

Use of appropriate sealing compounds or PTFE thread tape is essential to ensure leak resistance under pressure. Threads should be checked for proper engagement depth, and all pipe joints tested per local code requirements, especially in fuel gas installations (NFPA 54 or equivalent).

Typical Use Cases

• Gas and oil transmission lines
• Steam boiler piping and condensate returns
• Industrial air lines
• Circulating pump manifolds and expansion loops

Note:

This product is not approved for potable water systems due to the absence of interior coating and corrosion resistance standards required by NSF/ANSI 61. Use galvanized or brass nipples for domestic water supply lines.

The 2" x 12" black steel nipple offers robust, pressure-rated service in commercial and industrial mechanical systems. Its precision threading, structural strength, and dimensional consistency make it a dependable component for contractors working in code-regulated environments.