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Quick Details:
Standard: GB/T 5310 seamless steel tubes and pipes for high pressure boiler
Steel grade: 20G
Out-diameter: 4mm-80mm
Wall thickness: 0.5mm-13mm
Application: For high pressure boiler
Technology: Cold-drawn
Steel grade 20G chemical composition(%):
C: 0.17~0.23
Si: 0.17~0.37
Mn: 0.35~0.65
20G is widely used in boiler economizers, superheaters, convection tubes, water walls and various headers. 20G has good bending and welding performance, so it is widely used in the manufacture of heating surfaces in boilers whose wall temperature is lower than 480℃ tube。
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http://www.jinhangsteeltube.com/