20G high pressure boiler tube

20G steel pipe is the GB/5310 national standard steel grade (corresponding foreign grades: German st45.8, Japanese STB42, American SA106B), which is the most commonly used boiler steel pipe steel, and its chemical composition and mechanical properties are basically the same as 20 plate.

Similar materials: 10#, 20#, 35#, 45#, 20G, 16Mn, 12Cr1MoV, 15CrMoG, 27SiMn, etc.
The implementation standards are: GB, ASTM, API5L, API5CT, DIN, JIS, etc.

20G high pressure boiler tube composition:
C——(0.17～0.24)%
Si——(0.17～0.37)%
Mn——(0.35～0.65)%
P——≤0.040%
S——≤0.040%

20G high-pressure boiler tubes have certain room temperature and medium-high temperature strength, low carbon content, good plasticity and toughness, and good cold and hot forming and welding performance.

20G steel pipe has a hollow section and is widely used as a pipeline for oil, natural gas, gas, water and certain solid materials. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolding used in building construction.

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