S-4457K123 4.026" ID x 4 1/2" OD x 18" 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 for extended service life in demanding environments
• Reliable pressure handling with Schedule 40 wall thickness (0.237") maintaining structural integrity under high-pressure applications
• Universal compatibility with NPT threading on both ends ensuring leak-proof connections across iron and steel fittings
• Robust welded construction providing exceptional durability for industrial air, gas, oil, steam, and water systems
• Precision manufacturing to ASME B1.20.1 standards guaranteeing consistent thread quality and easy installation
• Environmental compliance meeting RoHS 3 and REACH standards for safe industrial use and regulatory acceptance
• Optimal flow characteristics with 4.026" ID maintaining efficient media transfer in piping systems

Professional Applications & Engineering Value

This black-coated steel threaded pipe nipple delivers exceptional performance in industrial fluid handling systems where corrosion resistance and pressure integrity are critical. The welded construction combined with NPT threading on both ends provides a robust solution for connecting iron and steel fittings in demanding applications including compressed air systems, natural gas distribution, petroleum processing, steam lines, and water treatment facilities. The Schedule 40 wall thickness ensures reliable operation under varying pressure conditions while the protective black coating significantly extends service life by resisting environmental degradation. Engineered to meet ASME B1.20.1, ASTM A53, and ASTM A733 specifications, this 4" diameter nipple offers precise dimensional accuracy for seamless integration into existing industrial piping infrastructure.

Specification Summary & Compliance

Manufactured to Class 2A thread tolerances per ASME B1.20.1 standard, this threaded pipe nipple ensures precise fitment and reliable sealing performance. The product conforms to ASTM A53 for material composition and ASTM A733 for welded and seamless carbon steel specifications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and regulatory acceptance for industrial applications worldwide. Dimensional specifications include 4" NPT threading, 18" length, 4.026" ID, 4½" OD, and 0.237" wall thickness, providing consistent performance across Class 125 and 150 fitting applications.