Steel Pipe

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.

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

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 […]

Differences between 3PE and FBE. 3PE coated steel pipe have 3 layers of FBE, corrosive, and PE layers, it has integrated advantages of FBE and PE.

API 5L line pipe (Seamless and welded pipe) of all grades have PSL1 and PSL2 two product specifications, they are different on chemical composition, manufacturing processes, mechanical strength, heat treatment, test records, traceability etc. Line pipes in API 5L PSL2 is higher than PSL1 a. PSL is the short name of product standard level. The product […]

In the realm of steel protection engineering, Hot-Dipped Galvanizing (HDG) represents a classic, century-proven corrosion control strategy that remains irreplaceable. Its technical essence is far more than a simple surface coating; it is a complex process involving physics, chemistry, and metallurgy. The core principle involves immersing a meticulously prepared steel pipe (after pickling and fluxing) […]

The fire protection pipe and connection fittings are mainly used to connect firefighting equipment, conveying fire fighting water and so on. It is also called fire sprinkler pipe and fittings. Due to the special requirements, the thickness and material of the fire protection pipe and fittings have special requirements. According to the regulations, the fire […]

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

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