S-4550K418 1.5" ID x 1 29/32" OD x 4 1/2" Long ASME B1.20.1, ASTM A53, ASTM A733 Thick-Wall Steel Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-coated steel construction, extending service life in harsh industrial environments
• Superior pressure handling with Schedule 80 thick-wall design, ideal for 300/600 flange class applications
• Leak-proof connections through precision NPT threading on both ends, ensuring secure fittings
• Multi-medium compatibility for reliable performance with air, natural gas, oil, steam, and water systems
• Enhanced structural integrity from welded construction, preventing joint failures under stress
• Industry-standard compliance with ASME B1.20.1, ASTM A53, and ASTM A733 specifications for guaranteed quality
• Versatile installation with male threaded ends and straight design, simplifying piping layouts

Professional Applications & Engineering Value

Engineered for demanding industrial systems, this black-coated steel threaded pipe nipple solves critical leakage and corrosion challenges in air, natural gas, oil, steam, and water applications. The Schedule 80 thick-wall construction combined with NPT threading ensures pressure integrity up to 300/600 flange classes, while the welded design eliminates weak points in high-vibration environments. Its 1 1/2" pipe size and 4 1/2" length make it ideal for compact yet robust connections in plant piping, processing equipment, and utility distribution networks. The black coating provides an additional protective layer against oxidation and chemical exposure, reducing maintenance frequency in aggressive operational conditions.

Specification Summary & Compliance

This threaded pipe nipple maintains precision NPT thread dimensions per ASME B1.20.1 standards, ensuring consistent fit with iron and steel fittings. Manufacturing complies with ASTM A53 (material specifications) and ASTM A733 (welded and seamless tubing requirements), guaranteeing dimensional accuracy and mechanical properties. The product meets industry pressure ratings for Class 300/600 flanges and is suitable for RoHS and REACH environmental directives. Wall thickness (0.2") and OD (1 29/32") adhere to Schedule 80 pipe specifications for reliable performance in regulated industrial applications.