ASTM A234 steel pipe fittings are among the most critical components used in welded piping systems, especially in high-temperature and corrosive service environments. These fittings—typically elbows, tees, reducers, and caps—are manufactured from carbon or alloy steel and designed to provide weldable joints that maintain high mechanical integrity under demanding conditions. The material specification ASTM A234 […]

Sour services steel pipe is applied for pipelines in the corrosive environment. As we know, line pipe corrosion is an important factor affecting its safety service and service life. It will cause the leakage of oil and gas pipeline, some cases even explosion. Pipe corrosion has a big threaten to personal safety and environment pollution, […]

What is LSAW pipe means LSAW (Longitudinal double submerge arc welding) carbon steel pipe is a type of SAW pipe made of steel plates that were hot rolled by JCOE or UOE forming technology. JCOE technology represents the shaping and forming processes involved during manufacturing as well as the inner and outer welding and cold […]

As we know, ASTM A650 standard specification covers welded tanks for oil storage, then what kind of materials (Steel Plate) for making API 650 tanks? Here we list a below pictures: ASTM A650 tanks material group 1-4 ASTM A650 tanks material group 5-8

API 650, it is the standard specification for to build the natural oil and gas storage tanks. It covers minimum requirements for material, design, fabrication, erection, and inspection for welded storage tanks in various sizes and capacities for internal pressures approximating atmospheric pressure (internal pressure not exceeding the weight of the roof plates), but a […]