Steel coil tube knowledge

Steel coil tube
Steel plate pipe are made from steel plate welded together, divided into the longitudinal weld pipe and two spiral weld steel pipe.
Most longitudinal weld pipe manufacturing on the construction site, or delegate processing plant manufacturing, specialty steel plant production. Q235A steel materials, 10th, 20th, 16Mn, 20G, specifications nominal diameter 200~3000mm, maximum 4000mm, wall thickness typically 4~16mm. 200~900mm single-tube length of 6.4m mm nominal diameter; nominal diameter 1000~3000mm 4.8M. application temperature: Q235A-15~300℃, 10th, 20th, 16Mn, 20G, -40~ 450 ℃, are applicable to low-voltage range.
Spiral weld steel pipe, steel pipe manufacturing, materials Q235A,16Mn. specifications range from nominal diameter 200~700mm, wall 7~10MM, single root canal 8~18m. application temperature: Q235A-15~300℃, 16Mn-40~450℃, operating pressure: Q235A 2.5MPa,16Mn to 4MPa.
Longitudinal weld pipe and spiral weld steel pipe, used for transportation of low pressure without corrosive medium at room temperature, such as low-voltage underground circulating water, steam, gas, and oil and gas. Spiral weld steel pipe single pipe is long, is especially suitable for long distance transportation pipeline.
Based on project requirements, there are straight seam welded stainless steel plate, are rolling on the construction site, the factory does not produce. Used materials are 1Cr18Ni9Ti plate. Specifications nominal diameter of 200~1000mm, nominal diameter wall thickness of 200~400mm is 4mm, the nominal thickness of 700~1000mm 6~8mm in diameter, single root canal length is 4.5M. applicable temperature range and transmission medium with low pressure stainless steel tube.