FAQ

Differences of ASTM A53 B and ASTM A106 B. ASTM A53 B covers ERW, Seamless and Galvanized steel pipe. A106 B covers only seamless steel pipe for high temperature service.

API 5CT N80-1, N80Q differences for Casing pipe and Tubing on the impact strength, heat treatment and Non-Destructive test. N80Q is higher than N80-1.

The differences between LSAW pipe and SSAW pipe. LSAW pipe welding in longitudinal, SSAW pipe welding in spiral, LSAW quality is better than SSAW.

The differences between the seamless steel pipe and welded steel pipe, on performances, manufacturing processes, applications, sizes.

BS EN 10204:2004 is British Standard that related to different types of inspection documents for steel metal products. There are 4 types for EN 102024, 2.1, 2.2, 3.1 and 3.2, the later two types are the mostly used in steel pipe and plates products, so here we will mainly introduce the major differences between two […]

Heat treatment methods for carbon and alloy steel pipe includes normalizing, annealing, tempering, quenching. It will improve the material performances.

In welded steel pipe production, ERW (Electric Resistance Welded) pipe and HFW (High-Frequency Welded) pipe are two closely related but distinct concepts. ERW refers broadly to the electric resistance welding process, which may use low, medium, or high-frequency currents to generate heat and form the weld. Within this category, HFW pipe is a specific subset […]

A jaw crusher reduces material by compression. Feed enters the crushing chamber from the top, is gripped between a fixed jaw and a moving jaw, and is compressed repeatedly as it moves downward through the chamber. Large lumps are broken first near the top. As the crushed material drops lower, it is squeezed again until […]

Third Party Inspection Service for Steel Products Third party inspection (TPI) is an independent verification process used to confirm that steel products, dimensions, materials, markings, testing, and documents comply with the purchase order, project specification, and applicable standards before shipment. In export steel supply, TPI is not just an extra step in the workflow. It […]

Heavy steel plate is flat-rolled plate supplied in thick sections for load-critical fabrication, where acceptance is driven by through-thickness integrity, thickness/flatness control, and verified properties (strength, toughness, and Z-direction performance when required) that must remain consistent after cutting, forming, welding, and NDT. In project packages, heavy steel plate is treated as a starting material for […]

A stable pipe connection is built when joint geometry is repeatable, sealing load is repeatable, and the acceptance evidence is already defined before fabrication starts. In steel piping projects, the highest rework risk concentrates at interfaces—where tolerances stack up across pipe, pipe connection fittings, and assembly practice. What procurement is really buying: a “joint package” […]

Our company employs advanced integrated steel smelting processes to produce API 5L B PSL2 seamless steel pipes. From raw material processing to final product delivery, the entire process strictly follows international standards. Our smelting process includes blast furnace ironmaking, converter steelmaking, refining treatment, continuous casting, and subsequent rolling operations, ensuring stable and reliable product quality. […]