S-4548K318 1.61" ID x 1 29/32" OD x 4 1/2" Long ASTM A733, ASME B1.20.1 Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316/316L stainless steel construction, ideal for harsh chemical and marine environments
• Reliable leak-proof connections through precision NPT threading on both ends, ensuring secure fittings in high-pressure systems
• Exceptional durability from welded construction, maintaining structural integrity under thermal cycling and mechanical stress
• Broad media compatibility for safe use with air, natural gas, oil, steam, and water without degradation
• Industry-standard compliance with ASTM A733 and ASME B1.20.1 specifications, guaranteeing dimensional accuracy and performance
• Environmental safety assurance with RoHS 3 compliance, meeting strict regulatory requirements for hazardous substances
• Optimized flow characteristics with Schedule 40 wall thickness, balancing pressure handling and fluid transmission efficiency

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this 316/316L stainless steel threaded pipe nipple solves critical challenges in chemical processing, oil and gas, and power generation systems. The NPT threaded ends create secure, pressure-tight seals that prevent costly leaks in steam and natural gas applications, while the welded construction ensures structural stability under thermal expansion and vibration. Its corrosion-resistant properties significantly extend service life in aggressive media including saltwater, acids, and high-temperature fluids, reducing maintenance frequency and replacement costs. The combination of ASTM A733 compliance and Schedule 40 dimensions provides engineers with predictable performance in 150 class piping systems, making it an essential component for reliable industrial infrastructure.

Specification Summary & Compliance

This 1 1/2" Schedule 40 threaded pipe nipple maintains precise NPT thread dimensions per ASME B1.20.1 standards, ensuring compatibility with industry-standard fittings. Manufactured in compliance with ASTM A733 specifications for welded and seamless stainless steel pipe, it delivers consistent wall thickness (0.145") and dimensional accuracy. The product meets RoHS 3 (2015/863/EU) compliance requirements and is suitable for 150 class flanges and fittings, providing assurance of regulatory adherence and performance reliability in industrial applications.