Year1
- 直径：
- 20-910mm
- 壁厚：
- 2.0-26mm
- 材质：
- 20#
cold drawn
hot rolled
hot expanded steel pipes
pipes for transporting fluids
diameter, wall thickness, standard, etc.
Steel pipe manufacturer, seamless steel pipe, cold drawn, hot rolled, hot expanded, steel pipe
.Seamless steel pipe is made of steel ingot or solid tube blank through perforation to make a capillary tube, and then hot rolled, cold rolled or Made cold drawn. The specifications of seamless steel pipes are expressed in terms of outer diameter * wall thickness in millimeters.
.Seamless steel pipes are divided into three categories: cold drawn (rolled), hot rolled and hot expanded seamless steel pipes. Seamless steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.
.Materials, and various alloys
.Standard classification of seamless pipes
【】Structural seamless pipes (/) are seamless steel pipes used for general structures and mechanical structures.
【】Seamless steel pipes for fluid transportation (/) are general seamless steel pipes used to transport fluids such as water, oil, and gas.
【】Seamless steel pipe for low and medium pressure boilers () is a high-quality carbon structural steel used to manufacture superheated steam pipes, boiling water pipes for low and medium pressure boilers of various structures, superheated steam pipes and arch brick pipes for locomotive boilers. Hot rolled and cold drawn (rolled) seamless steel pipes.
【】Seamless steel pipes for high-pressure boilers () are high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipes used for the heating surfaces of water tube boilers with high pressures and above.
【】Carbon steel seamless steel pipes for ships are carbon steel seamless steel pipes used in manufacturing ship-grade pressure-resistant piping systems, grade II pressure-resistant piping systems, boilers and superheaters. The working temperature of the carbon steel seamless steel pipe wall does not exceed ℃, and the working temperature of the alloy steel seamless steel pipe wall exceeds ℃.
【】Seamless steel pipe for petroleum cracking () is a seamless steel pipe suitable for furnace tubes, heat exchangers and pipelines in petroleum refineries.
【】High-pressure seamless steel pipes for fertilizer equipment () are high-quality carbon structural steel and alloy steel seamless steel pipes suitable for chemical equipment and pipelines with working temperatures of ~°C and working pressures of ~°C.
【】Seamless steel pipes for diamond core drilling are seamless steel pipes used for drill pipes, core rods and casings for diamond core drilling.
【】Oil drilling pipe is a seamless steel pipe with internal or external thickening at both ends used for oil drilling. There are two types of steel pipes: wired and unthreaded. Threaded pipes are connected with joints, while non-threaded pipes are connected with tool joints by butt welding.
【】Steel pipes for geological drilling () are steel pipes used by geological departments for core drilling. They can be divided into drill pipes, drill collars, core pipes, casings and sedimentation pipes according to their uses.
The main products of Cangzhou Hongyun Steel Pipe Co., Ltd. are seamless steel pipes (hot-rolled, cold-drawn), spiral steel pipes, straight-seam steel pipes, thermally expanded steel pipes, large-diameter thick-walled steel pipes, and alloy steel pipes. The company currently has (Diesel seamless piercing machine) seamless steel pipe production line, American Lincoln double-sided submerged arc welding spiral steel pipe production line, high-frequency straight seam steel pipe production line, medium and high-frequency push machine thermal expansion steel pipe production line, and can produce seamless steel pipes annually. Steel pipe diameter and wall thickness. 10,000-ton double-sided submerged arc welded spiral steel pipe diameter and wall thickness. 10,000-ton straight seam resistance welded steel pipe diameter and wall thickness and 10,000-ton straight seam double-sided submerged arc welded pipe diameter and wall thickness. 10,000-ton thermally expanded seamless steel pipe diameter and wall thickness. The company has large-diameter thick-walled steel pipes with a diameter of 10,000 tons and a wall thickness of 10,000 tons, and stocks 10,000 tons of alloy steel pipes from several major domestic steel mills all year round. Seamless steel pipe implementation standards. Spiral steel pipe implementation standards/ / Straight seam steel pipe implementation standards/. Thermal expansion steel pipe implementation standards. Large-diameter thick-walled steel pipes comply with standards/. Alloy steel pipe implementation standard/.
According to customer requirements, 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, and epoxy coal pitch anti-corrosion for steel pipes. Coating pipeline external anti-corrosion engineering and polymer anti-corrosion coating anti-corrosion, cement mortar pipeline inner wall anti-corrosion and other pipeline inner coating pipeline anti-corrosion projects with various anti-corrosion structures, implement, / standard, are widely used in long-distance transportation of oil, natural gas, coal gas, water, etc. Pipeline and petrochemical enterprise urban centralized 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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