S-44615K133 4.026" ID x 4 1/2" OD x 5" Long ASME B1.20.1, ASTM A53, ASTM A733 Standard-Wall Steel Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-coated steel construction, extending service life in demanding industrial environments
• Reliable leak-proof connections through precision NPT threading on both ends, ensuring secure sealing with iron and steel fittings
• Enhanced structural integrity from welded construction, maintaining pressure integrity in Class 125 and 150 applications
• Versatile media compatibility for air, natural gas, oil, steam, and water systems, reducing inventory needs for multiple applications
• Consistent dimensional accuracy with Schedule 40 wall thickness (0.237"), providing reliable fit-up and installation efficiency
• Certified performance assurance through compliance with ASME B1.20.1, ASTM A53, and ASTM A733 standards
• Optimized flow characteristics with 4.026" ID, minimizing pressure drop in pneumatic and hydraulic systems

Professional Applications & Engineering Value

This black-coated steel threaded pipe nipple delivers critical performance in industrial fluid handling systems where corrosion resistance and pressure integrity are paramount. The welded construction combined with NPT threading creates a robust connection solution that withstands vibration and thermal cycling in compressed air lines, steam distribution, and hydrocarbon processing. The Schedule 40 wall thickness provides optimal strength-to-weight ratio for permanent installations while the black coating offers essential protection against environmental degradation. Engineering teams specify this component for its reliable performance in connecting iron and steel fittings across pressure classes 125 and 150, eliminating leakage concerns in critical process applications involving natural gas, oil, and water systems.

Specification Summary & Compliance

Manufactured to ASME B1.20.1 specifications for NPT thread form with Class 2A tolerance, ensuring precise engagement with mating components. The ASTM A53 and ASTM A733 compliance guarantees material quality and dimensional consistency. Product features 4" nominal pipe size with 4.026" ID, 4-1/2" OD, and 0.237" wall thickness in accordance with Schedule 40 requirements. Suitable for use with iron and steel fittings rated for Class 125 and 150 applications across multiple media types including air, natural gas, oil, steam, and water systems.