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天津市北辰区中关村可信产业园B9-1 Address: B9-1, Trustworthy Industrial Park, Zhongguancun, Beichen District, Tianjin

15522233345 Mobile: 15522233345

许宗涛 Contact: Xu Zongtao

High pressure pipe 14




In simple terms, 20 # is the steel number of ordinary seamless steel tubes, and 20G is the steel type of high pressure boiler tubes. Let us compare their differences from various aspects:

There is no difference in the chemical composition of 20 #, 20G, but the standards are different. The standards of 20 # are GB / T8162-2008, GT / T8163-2008, GB / T3087-1999, GB / T6479-2000.20G Standards are GB / T5310-1999. Due to the different uses of steel pipes, their mechanical properties are also different, such as 20 # steel pipe standard GB / T6479-2000 standard and GB / T53010-1999 20G steel pipe must be bent, impacted and For tensile performance, flaw detection and other tests, normal delivery is necessary.



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General Manager: Xu Zongtao Phone: 15522233345 Address: B9-1, Trustworthy Industrial Park, Zhongguancun, Beichen District, Tianjin
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