Several material classifications of seamless gas cylinders

Seamless gas cylinders are classified according to manufacturing materials:

1. Steel seamless gas cylinders are steel cylinders that are made of steel billet as raw material, manufactured by stamping and drawing, or made of seamless steel pipes, and manufactured by hot spinning and closing. The material of the bottle body is killed steel smelted by alkaline open hearth furnace, electric furnace or oxygen blowing alkaline converter, such as high quality carbon steel, manganese steel, chromium molybdenum steel or other alloy steel. Used to hold long-term gas (compressed gas) and high-pressure liquefied gas.

2. Steel welded gas cylinders are steel cylinders manufactured by stamping and welding with steel plates as raw materials. The material of the bottle body and pressure components is killed steel smelted in an open hearth, electric furnace or oxidizing converter, and the material is required to have good stamping and welding properties. This type of gas cylinder is used to hold low-pressure liquefied gas.

3. Winding glass fiber gas cylinder is a gas cylinder made of glass fiber plus binder winding or carbon fiber. Generally, there is an aluminum inner cylinder, whose function is to ensure the air-tightness of the cylinder, and the pressure-bearing strength depends on the outer cylinder wrapped with glass fiber. This type of cylinder is mostly used for holding compressed air for breathing due to its good thermal insulation performance and light weight. , For workers in fire fighting, poisonous or hypoxic areas, carry them on their backs and wear masks. Generally, the volume is small (1-10L), and the inflation pressure is mostly 15-30MPa.