The straight seam steel pipe structure can adopt a circular pipe structure or a rectangular pipe structure according to the specific conditions of the component's stress, supply conditions, manufacturing and processing conditions, and cost, or a mixture of the two types of steel pipes. When mixed-us

1. Using 99.99% argon inert gas protection, the manual tungsten argon arc welding bottom welding includes the following process steps:(1) The selected power supply is a Panasonic TSP-300 manual/argon arc welding machine, the polarity of the power supply is DC positive connection, the protective gas

Steel pipes are divided into two categories: seamless steel pipes and welded steel pipes (seamed pipes). According to the cross-sectional shape, it can be divided into round tubes and special-shaped tubes. Round steel tubes are widely used, but there are also some square, rectangular, semicircular,

316 stainless steel pipe and 316L stainless steel pipe are molybdenum-containing stainless steel species.The molybdenum content in 317 stainless steel is slightly higher than that of 316 stainless steel. Due to the molybdenum in the steel, the overall performance of this steel is better than that of