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 4
20g is the steel grade in GB713 standard dedicated to boilers,
20G is a high-pressure steel pipe for steel boilers in GB5310, which is also necessarily different.
20g is a common carbon steel for making boilers. It has the same function as No. 20 steel. It increases the requirements for impact toughness, strain-aging impact value and cold bending. To ensure the 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 main surface steam pipes, headers, wall temperature ≤ 450 ° C heating surface pipes, wall temperature ≤ 450 ° C, medium temperature ≤ 450 ° C. ,
Fasteners below 400 ° C and motor hoist, carburizing parts and cyanide parts with little stress.