S-44615K137 4.026" ID x 4 1/2" OD x 12" 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 leak-proof connections through precision NPT threading on both ends ensuring secure fittings
• High-pressure compatibility with Schedule 40 wall thickness (0.237") suitable for Class 125 and 150 flange systems
• Versatile fluid handling capability for air, natural gas, oil, steam, and water applications
• Durable welded construction providing structural integrity and long-term performance stability
• Precise dimensional accuracy with 4.026" ID and 4 1/2" OD ensuring proper fit with iron and steel fittings
• Industry-standard compliance meeting ASME B1.20.1, ASTM A53, and ASTM A733 specifications

Professional Applications & Engineering Value

This heavy-duty 4" Schedule 40 black-coated steel threaded pipe nipple delivers exceptional engineering value in industrial fluid systems. The welded construction combined with NPT threading on both ends provides reliable, leak-resistant connections critical for maintaining system integrity in high-pressure applications. The black-coated steel material offers enhanced corrosion protection, extending service life in harsh environments handling air, natural gas, oil, steam, and water. With precise dimensions (4.026" ID, 4 1/2" OD) and 0.237" wall thickness, this threaded pipe nipple ensures compatibility with iron and steel fittings while maintaining flow efficiency. Its robust design addresses common industrial challenges including pressure fluctuations, thermal expansion, and chemical exposure, making it ideal for piping systems requiring Class 125 and 150 flange compatibility.

Specification Summary & Compliance

This 4" Schedule 40 steel threaded pipe nipple features NPT (National Pipe Taper) threads conforming to ASME B1.20.1 standards for precise thread engagement and sealing performance. The product meets ASTM A53 specifications for steel pipe manufacturing and ASTM A733 for welded and seamless carbon steel pipe nipples. Dimensional accuracy is maintained with standard pipe tolerances, ensuring proper fit with compatible iron and steel fittings. The construction complies with industry standards for pressure ratings suitable for Class 125 and 150 applications, providing reliable performance in various industrial fluid handling systems.