Year1
- 直径：
- 351-3600mm
- 壁厚：
- 26-80mm
- 材质：
- Q235B
Diameter, wall thickness. standard.
Professional steel pipe manufacturers directly sell large-diameter thick-walled steel pipes, seamless thick-walled, straight-seam thick-walled steel pipes
Large-diameter thick-walled steel pipe specification range
The outer diameter of large-diameter thick-walled steel pipes usually exceeds , for steel pipes with a wall thickness exceeding 100%, the current maximum diameter of a single weld can be reached, and the wall thickness can be reached. The maximum diameter of a double weld can be reached.
Uses of large-diameter thick-walled steel pipes
Large-diameter thick-walled steel pipes are mostly used in large-scale steel structure construction as the main support part, such as bridge piling, submarine piling, and high-rise building piling. Its material is generally used. It will also be used in areas with lower temperatures.
Production process of large-diameter thick-walled steel pipes
The production process of large-diameter thick-walled steel pipes generally includes hot rolling, hot coiling, casting and other production methods! Large-diameter thick-walled steel pipes are more common in double-sided submerged arc welding production processes , the product has gone through multiple processes such as bending, jointing, internal welding, external welding, straightening, flat head and other processes to meet the standards of the American Petroleum Institute.
Production process of large-diameter thick-walled steel pipe
Tube blank inspection, peeling inspection, heating, perforation, pickling, grinding, lubricating, air-drying, welding head, cold-drawing, solid-solution treatment, pickling, pickling, passivation inspection, cold-rolling, degreasing, cutting head, air-drying inside Polished external polishing inspection mark Finished product packaging
Industrial pipe process Pipe blank inspection Peeling inspection Heating and perforation Pickling repair Mushroom lubrication Air-drying welding head Cold drawing Solid solution treatment Pickling Pickling Passivation inspection
Large diameter thick wall Steel pipe weight formula
[(outer diameter wall thickness)*wall thickness]*./meter (weight per meter)
Steel pipe pressure calculation method
One way to know seamless pipes and seamless steel pipes The outer diameter specification, wall thickness, and pressure calculation method (different steel pipe materials have different tensile strengths)
Pressure (wall thickness ** steel pipe material tensile strength)/(outer diameter * coefficient)
Two ways to know Calculation method for seamless steel pipe outer diameter and pressure-bearing wall thickness
Wall thickness (pressure*outer diameter*coefficient)/(*tensile strength of steel pipe material)
Three steel pipe pressure coefficient expression methods< br/> Pressure & Coefficient
Steel pipe pressure. Coefficient
Pressure. Coefficient[]
The main products of Cangzhou Hongyun Steel Pipe Co., Ltd. are seamless steel pipes (hot-rolled, cold-drawn), spiral steel pipes, straight seams Steel pipe thermal expansion steel pipe large diameter thick wall steel pipe alloy steel pipe. Our company can undertake single-layer and double-layer sintered epoxy powder, double-layer polyethylene and three-layer polyethylene, double-layer polypropylene and three-layer polypropylene, epoxy coal pitch anti-corrosion coating, external anti-corrosion engineering of steel pipes and polymer Anti-corrosion coating anti-corrosion, cement mortar pipeline inner wall anti-corrosion and other pipeline inner coating anti-corrosion projects with various anti-corrosion structures, implement, / standards, are widely used in long-distance pipelines such as oil, natural gas, gas, water and petrochemical enterprises for urban central heating Pipe network, gas pipe network and other projects, the product has many advantages such as high strength, high pressure resistance, easy installation, low cost, long service life, etc., and is well received by users.
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