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Carbon steel pipe

Carbon steel pipe is made from carbon steel, which is an alloy of iron and carbon. Some of the most common grades of carbon steel pipes include ASTM A53, ASTM A106, and API 5L.

astm a335 p92 high pressure boiler pipes 02

China technical requirements for seamless steel pipes for high pressure gas cylinders

The steel material for the high-pressure gas cylinder is a kind of dead steel without aging, which is usually melted by an alkaline open hearth furnace, an electric furnace and an oxygen blowing alkaline converter, and some kinds of steel must be melted by electroslag or vacuum.

What is a seamless steel pipe?

Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes.

What is the effect of alloying elements in steel pipes?

Alloy steel is a steel that has small amounts of one or more elements (in addition to carbon) such as manganese, silicon, nickel, copper, chromium and molybdenum in addition.

What are the materials of thick-walled alloy tubes?

The performance of alloy pipe is much higher than that of general seamless steel pipe, because this steel pipe contains more Cr, and its high temperature resistance, low temperature resistance, corrosion resistance is not comparable to other seamless steel pipes, so alloy pipe is widely used in petroleum, chemical, electric power, boiler and other industries.

Process flow of seamless pipe

In both the manufacturing methods, raw steel is first cast into a more workable starting form (hot billet or flat strip). It is then made into a pipe by stretching the hot steel billet out into a seamless pipe or forcing the edges of flat steel strip together and sealing them with a weld.