ASTM A234 covers carbon steel and alloy steel fittings of seamless and welded construction. The regular product have elbows, tees, reducer, etc.

Choosing between seamless and welded pipes? Discover the key differences in manufacturing, pressure ratings, costs, and applications. Factory-direct insights from Rayoung.

Learn the difference between Long Radius (LR) & Short Radius (SR), ASTM A234 WPB standards, and ASME B16.9 dimensions.

Source high-quality carbon steel pipe fittings from Rayoun. Our guide covers butt weld tube fittings, technical pipe fitting dimensions (ASME B16.9), and why our weldable solutions are the top choice for global distributors.

Learn about ASTM material selection, international standards compliance, and MTC 3.1 traceability for industrial flanges.

Avoid costly pipeline failures. Discover why rigorous NDT (Non-Destructive Testing) is essential for industrial pipe fittings and flanges.

Avoid costly leaks and system failures. Discover the top 10 mistakes in buttweld pipe fitting installation, from poor beveling to improper PWHT. Essential for Oil & Gas engineers.

As we return from the Spring Festival break, our focus is twofold: maintaining the unwavering quality of our industrial flanges and fittings, and physically reaching out to the people who use them.

Hebei RAYOUNG Pipeline Technology observes 2026 CNY holiday from Feb 12 to 23. Online support for industrial steel pipes, fittings, and flanges remains available 24/7.

Compare flanged and threaded pipe connections. Learn the pros, cons, and best applications for each to ensure your piping system is safe, efficient, and cost-effective.