S-44615K818 4.03" ID x 4 1/2" OD x 7 1/2" 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 harsh industrial environments
• Reliable leak-proof connections through precision NPT threading on both ends, ensuring secure fittings for high-pressure systems
• Heavy-duty welded construction provides exceptional structural integrity for demanding air, gas, oil, steam, and water applications
• Industry-standard compliance with ASTM A53, ASME B1.20.1, and ASTM A733 specifications guarantees consistent performance and interchangeability
• Environmental regulation adherence through REACH and RoHS 3 compliance, meeting modern industrial safety standards
• Versatile compatibility with Class 125 and 150 flanges and iron/steel fittings across multiple fluid handling systems
• Optimized flow characteristics with precise 4.03" ID and Schedule 40 wall thickness, maintaining efficient media transfer

Professional Applications & Engineering Value

This black-coated steel threaded pipe nipple delivers critical performance advantages in industrial fluid systems where corrosion resistance and pressure integrity are paramount. The welded construction combined with NPT threading creates a robust connection solution that prevents leakage in demanding applications handling air, natural gas, oil, steam, and water. Engineers specify this Schedule 40 pipe nipple for its ability to withstand variable pressures and temperatures while maintaining thread engagement reliability across multiple connection/disconnection cycles. The black coating provides an additional protective layer against environmental degradation, making it ideal for both indoor industrial plants and outdoor installations where moisture and chemical exposure are concerns. Its compliance with ASTM A53 standards ensures material consistency and mechanical properties suitable for high-stress piping systems.

Specification Summary & Compliance

Manufactured to precise dimensional standards with NPT thread form per ASME B1.20.1, this 4" Schedule 40 pipe nipple features a 7-1/2" length with threaded both ends configuration. The product meets ASTM A53 and ASTM A733 specifications for material quality and manufacturing consistency. Environmental compliance is verified through REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) adherence, ensuring restricted substance control. Dimensional accuracy includes 4.03" ID, 4.5" OD, and 0.24" wall thickness, maintaining proper Class 2A thread tolerances for reliable mating with compatible fittings.