Types of Welded Steel Pipes Welded steel pipes come in various types, including ordinary welded steel pipes, oxygen-blowing steel pipes, wire conduits, galvanized steel pipes, transformer pipes, electric welded special-shaped pipes, and more. These pipes are widely used in different industries such as construction, oil and gas, water supply, and HVAC systems due to their strength, durability, and cost-effectiveness. Dimensions and Weights of Low-Pressure Fluid Transfer Welded Steel Pipes Nominal Diameter OD (mm) Ordinary Tube Thickened Tube (mm) (in) Wall Thickness (mm) Theoretical Weight (kg/m) Wall Thickness (mm) Theoretical Weight (kg/m) 6 1/8 10.00 2.00 0.39 2.50 0.46 8 1/4 13.50 2.25 0.62 2.75 0.73 10 3/8 17.00 2.25 0.82 2.75 0.97 15 1/2 21.25 2.75 1.26 3.25 1.45 20 3/4 26.75 2.75 1.63 3.50 2.01 25 1 33.50 3.25 2.42 4.00 2.91 32 1 1/4 42.25 3.25 3.13 4.00 3.78 40 1 1/2 48.00 3.50 3.84 4.25 4.58 50 2 60.00 3.50 4.88 4.50 6.16 65 2 1/2 75.50 3.75 6.64 4.50 7.88 80 3 88.50 4.00 8.34 4.75 9.81 100 4 114.00 4.00 10.85 5.00 13.44 125 5 140.00 4.00 13.42 5.50 18.24 150 6 165.00 4.50 17.81 5.50 21.63 The theoretical weight of a welded steel pipe can be calculated using the formula: W(kg/m) = 0.02466 × thickness × (outer diameter − wall thickness). This formula is commonly used in engineering and construction for estimating material costs and structural requirements. International Welded Pipe Standards Welded steel pipes are manufactured according to international standards such as ASTM A53, API 5L, EN 10217, and ISO 3183. These standards ensure that the pipes meet specific quality, safety, and performance criteria, making them suitable for use in various environments and applications. Adherence to these standards is crucial for ensuring compatibility, reliability, and longevity of piping systems. Silicone Roller,Silicone Rubber Embossing Roller,Conductive Roller,Traction Transmission Roller Jiangyin Mingda Rubber Roller Co,Ltd , https://www.mingdaroller.com