Cold rolled steel is our most common and commonly used cold rolled products.Its brand can be generally divided into: ST12, ST13, ST14, ST15, ST16 and so on.
ST12 is German standard (DIN1623), It's ordinary cold rolled steel. In principle, ST12 can only be bent and formed, and no stamping is allowed.

The better weldability also makes 4130 Carbon Steel Pipe a popular choice in the aerospace industry, which is used to manufacture commercial and military aircraft components requiring high strength and low weight. Examples include gears, piston pins, etc. Other uses of 4130 steel include auto parts, cutting tools and drilling machines.

Application: It is suitable for stress and pressure parts, as well as steam, water, gas and air pipelines for general purposes. A53 pipeline pipe belongs to American petroleum standard pipeline pipe. Pipeline pipe is used to transport oil, steam and water pumped out of the ground to oil and natural gas industrial enterprises through pipeline pipe. Pipeline pipe includes seamless pipe and welded steel pipe, with flat end, threaded end and socket end at the pipe end; The connection methods are end welding, coupling connection, socket connection, etc.

A106 GrB strength grade 415MPa. ASTM A106Gr. B seamless steel pipe is a kind of low carbon steel widely used in petroleum, chemical and boiler industries. The material has good mechanical properties. Seamless steel pipe for high-temperature operation ASTM A106 GR. B, steel grade: SA106B, Specification: 1/4 ″ - 28 ″, 13.7-711.2mm Steel grade: GRAD B, Standard: ASTM A106 - American Society for Testing and Materials.

A214 carbon steel pipe: resistance welded carbon steel pipe for heat exchanger and condenser.

Main application: used for making oil and natural gas transmission pipelines. API 5L generally refers to pipeline steel plate -- API 5L pipeline steel plate. When the pipeline steel plate is processed into large-diameter pipeline steel pipe, the oil, steam and water pumped out of the ground are transported to the oil and natural gas industrial enterprises through pipeline pipes.

X42 pipeline pipe is the pipeline pipe with steel grade of X42. The pipeline pipe is used to transport the oil, steam and water pumped out of the ground to the oil and natural gas industrial enterprises through the pipeline pipe. Pipeline pipe includes seamless pipe and welded steel pipe, with flat end, threaded end and socket end at the pipe end; The connection methods are welding, coupling connection, socket connection, etc.

The tensile strength of ST42 Carbon Steel Pipe shall not be less than 42kgf/mm2, which is 420MPa.ST42 Carbon Steel Pipe is a German standard seamless steel pipe, which is widely used. German standard seamless steel pipes for general purposes are rolled from ordinary carbon structural steel, low alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipes or structural parts for fluid transportation .

Carbon steel seamless steel pipe, widely used for conveying fluids, such as oil, natural gas, gas, water and some solid materials, etc. It is a kind of economic cross-section steel, widely used in the manufacture of structural and mechanical parts, such as oil drill pipe, automobile drive shaft, bicycle frame and steel scaffolding used in construction.