Thick-walled steel pipe

Description

Large diameter thick wall steel pipe used primarily as a place of mechanical processing, production ofthe fuel tank! Usually more than the outer diameter of the large diameter thick wall steel pipe **0mm,wall thickness more than *0mm of steel pipes, the largest diameter can reach ***0mm and wall thicknesscan reach *0mm.


The production technology of large diameter thick wall steel pipe generally includes hot-rolled, hot rolled, casting and other production methods! The large diameter thick wall steel pipe more common indouble-sided submerged arc welding production process, product by bending, commissure, welding, outsidewelding, straightening, first-class multi-level process, to achieve the American Petroleum Institutestandard requirements. The large diameter thick wall steel pipe used in more than a large steelstructure construction, to do the main support section, for example, a bridge piling, the underseapiling, high-rise buildings piling. The material is generally used Q**5B, Q**5C. Lower temperatureregion will be used Q**5D Q**5E.