S-4550K255 1.278" ID x 1 21/32" OD x 12" Long ASME B1.20.1, ASTM A53, ASTM A733 Thick-Wall Steel Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Corrosion-resistant black coating extends service life in demanding environments with air, natural gas, oil, steam, and water applications.
• Heavy-duty Schedule 80 welded construction provides superior pressure containment and structural integrity for industrial piping systems.
• Precision NPT threads on both ends ensure leak-tight connections and easy installation with compatible 300/600 class flanges and fittings.
• Thick 0.191" wall thickness delivers enhanced durability and resistance to mechanical stress in high-pressure operations.
• Full compliance with ASME B1.20.1, ASTM A53, and ASTM A733 standards guarantees consistent quality, dimensional accuracy, and material performance.
• Versatile male threaded design simplifies integration into iron and steel piping networks across multiple industrial sectors.
• 12-inch length with straight configuration offers flexible spacing solutions while maintaining flow efficiency in complex pipe layouts.

Professional Applications & Engineering Value

This black-coated steel threaded pipe nipple addresses critical industrial challenges by combining welded construction with Schedule 80 thickness to prevent system failures under high-pressure conditions. The NPT threaded connections create reliable seals for aggressive media including steam, oil, and natural gas, minimizing leakage risks in 300/600 class flange systems. Engineered to ASTM A53/A733 material standards, it maintains dimensional stability across thermal cycles and mechanical loads, reducing maintenance frequency in chemical plants, power generation facilities, and industrial processing lines. The protective coating further resists corrosion in humid or chemically exposed environments, extending component lifespan while ensuring compliance with ASME B1.20.1 threading specifications for interoperability with existing infrastructure.

Specification Summary & Compliance

Manufactured to ASME B1.20.1 for precise NPT thread geometry and ASTM A53/A733 material specifications, this nipple maintains Class 2A tolerance for reliable engagement. The Schedule 80 profile ensures consistent wall thickness (0.191") and OD/ID dimensions (1 21/32" and 1.278" respectively), supporting pressure ratings for 300/600 class applications. Compliant with RoHS and REACH environmental directives, it is suitable for international industrial projects requiring certified components.