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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

Thick wall seamless steel pipe










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Title: High Pressure Pipe 4
Introduction: The steel grade 20 has GB8163 and GB3087. According to the above standard rules, 20g is the steel grade in the GB713 standard dedicated to boilers, and 20G is the high pressure steel pipe for steel grade boilers in GB5310. There is also a certain difference. 20g is The common carbon steel used for making boilers has basically the same function as No. 20 steel. It increases the requirements for impact toughness, strain aging impact value and cold bending, and has a slightly higher yield ratio. Safe operation of the boiler. Suitable for making marine boilers, steam boilers and other boiler accessories with pressures less than 6 MPa and wall temperatures below 450 ° C. 20G is a special steel for billets such as high-pressure seamless steel pipes, which has good strength and plasticity. It has excellent welding function and process function, and is widely used in power equipment, such as for heating surface pipes with wall temperature ≤480 ℃, main steam ducts and headers with wall temperature ≤450 ℃, medium temperature ≤450 ...... [ Detailed ]
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General Manager: Xu Zongtao Phone: 15522233345 Address: B9-1, Trustworthy Industrial Park, Zhongguancun, Beichen District, Tianjin
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