S-4550K413 0.423" ID x 43/64" 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

• Superior corrosion resistance with black-coated steel construction for extended service life in harsh industrial environments
• Heavy-duty performance with Schedule 80 thick-wall design that withstands high-pressure applications up to Class 600 flange systems
• Universal compatibility with NPT threading on both ends ensuring leak-proof connections across multiple fluid systems
• Multi-medium versatility engineered to handle air, natural gas, oil, steam, and water without degradation
• Precision manufacturing with welded construction that maintains dimensional accuracy and structural integrity
• Reduced installation time with standardized 4½" length and male threaded ends for quick, secure assembly
• Industry compliance assurance meeting ASME B1.20.1, ASTM A53, and ASTM A733 specifications for reliable performance

Professional Applications & Engineering Value

This black-coated steel threaded pipe nipple delivers exceptional engineering value in demanding industrial settings where corrosion resistance and pressure integrity are critical. The Schedule 80 thick-wall construction combined with NPT threading creates a robust sealing solution that prevents leakage in high-vibration applications. Engineered specifically for Class 300/600 flange systems, this component effectively handles thermal expansion and pressure fluctuations in air, natural gas, oil, steam, and water systems. The welded construction ensures uniform wall thickness distribution, eliminating weak points that commonly fail in inferior fittings. This makes it ideal for chemical plants, power generation facilities, and industrial processing systems where downtime prevention and long-term reliability are paramount considerations for maintenance engineers and procurement specialists.

Specification Summary & Compliance

This 3/8" Schedule 80 threaded pipe nipple features precision NPT threading per ASME B1.20.1 standards with dimensional compliance including 4½" length, 0.423" ID, and 43/64" OD. Manufactured from ASTM A53 steel with black-coated surface treatment for enhanced corrosion protection. The component meets ASTM A733 specifications for welded and seamless carbon and alloy steel pipe nipples, ensuring consistent performance in Class 300 and 600 flange applications. Wall thickness of 0.126" exceeds standard requirements for added safety margin in high-pressure industrial systems.