S-44615K168 4.026" ID x 4 1/2" OD x 5 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

• Enhanced corrosion resistance with black-coated steel construction for prolonged service life in demanding environments.
• Robust welded design ensures superior structural integrity and leak-free performance under high-pressure conditions.
• Versatile fluid compatibility for safe and reliable transport of air, natural gas, oil, steam, and water.
• Precision NPT threading on both ends provides secure, standardized connections with iron and steel fittings, reducing installation time.
• Optimal dimensional stability with Schedule 40 wall thickness (0.237") maintaining consistent flow and pressure ratings.
• Broad industrial compliance meeting ASME B1.20.1, ASTM A53, and ASTM A733 standards for guaranteed quality and safety.
• Direct compatibility with Class 125 and 150 flanges, simplifying system integration and maintenance.

Professional Applications & Engineering Value

This 4" Schedule 40 black-coated steel threaded pipe nipple is engineered to address critical challenges in industrial piping systems, including corrosion, high-pressure stress, and connection reliability. The welded construction and NPT threaded both ends design prevent leaks and withstand thermal expansion in applications handling air, natural gas, oil, steam, or water. Its black-coated steel material offers an added layer of protection against rust and chemical exposure, extending service intervals in plants, refineries, and HVAC systems. By conforming to ASME and ASTM specifications, this nipple ensures dimensional accuracy and performance consistency, reducing downtime and maintenance costs for engineers and procurement specialists.

Specification Summary & Compliance

This product adheres to Class 2A thread tolerances per ASME B1.20.1 for precise fit, with material and construction meeting ASTM A53 (standard for steel pipe) and ASTM A733 (welded and seamless carbon steel specifications). Key dimensions include a 4.026" ID, 4 1/2" OD, and 0.237" wall thickness, ensuring compatibility with Schedule 40 piping. It is designed for use with iron and steel fittings under Classes 125 and 150, supporting compliance with common industrial safety and environmental standards such as RoHS and REACH where applicable.