How to choose precision special-shaped copper tube square and rectangular tube LDY-PY32
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Different products of seamless steel pipes
The seamless steel pipe is formed by perforating the whole round steel after heating, and the steel pipe without gaps on the surface is called seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and pipe jacking. According to the cross-sectional shape, the seamless steel pipe is divided into two types: round and special-shaped. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industries, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.
Suitable for seamless steel pipes for high temperature, low temperature and corrosion resistance in petroleum, chemical, electric power and boiler industries
stainless steel pipe
Suitable for petroleum, aviation, smelting, food, water conservancy, electric power, chemical industry, chemistry, chemical fiber, pharmaceutical machinery and other industries
Suitable for -45℃~-195℃ grade low temperature pressure vessel pipes and seamless steel pipes for low temperature heat exchanger pipes
High pressure boiler tube
Suitable for manufacturing high pressure boiler heating tubes, headers, steam pipes, etc.
High pressure fertilizer pipe
It is suitable for chemical equipment and pipelines with working temperature of -40--400℃ and working pressure of 10-32Mpa
Petroleum Cracking Tube
Furnace tubes, heat exchanger tubes and pipes for petroleum refineries
Low and medium pressure boiler tubes
Suitable for manufacturing low-pressure and medium-pressure boilers and locomotive boilers of various structures
delivery fluid tube
General seamless steel pipe suitable for conveying fluids
General Structural Pipe
Suitable for general structures, engineering supports, machining, etc.
API SPEC 5CT
Tubing is used to extract oil or natural gas in oil wells Casing is used as the wall of oil and gas wells
API SPEC 5L
Oxygen, water and oil delivery pipes in the oil and gas industry
Straight seam steel pipe
Suitable for general structural supports, low pressure fluid delivery, etc.
Spiral steel pipe
Steel pipes for low pressure fluid transport
How to choose seamless steel pipe
Seamless steel pipes can be divided into round pipes and special-shaped pipes according to the shape of the cross-sectional area. Since the area of the circle is the largest under the condition of equal perimeter, more fluid can be transported with a circular tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is relatively uniform. Therefore, most steel pipes are round pipes. However, due to the limitations of round pipes, for example, under the condition of plane bending, round pipes are not as strong as square and rectangular pipes. Special-shaped steel pipes with other cross-sectional shapes are also required according to different purposes. In appearance, the cold-rolled seamless steel pipe is shorter than the hot-rolled seamless steel pipe. The wall thickness of the cold-rolled seamless steel pipe is generally smaller than that of the hot-rolled seamless steel pipe, but the surface looks brighter than the thick-walled seamless steel pipe, and the surface is not too much. Much rough, and the caliber doesn't have too many burrs. The delivery state of hot-rolled seamless steel pipe is generally that the hot-rolled state is delivered after heat treatment.
Precision special-shaped copper tube square and rectangular tube in seamless steel tube
Precision steel pipe is a high-precision, high-brightness seamless steel pipe produced by cold drawing or cold rolling. Its inner and outer diameters can be accurate to within 0.1mm, while ensuring the same bending and torsional strength, the weight is lighter, so it is widely used in the manufacture of precision mechanical parts. Mainly used in chemical, petroleum, medicine, food, energy, electric power, aerospace, environmental protection, boiler heat exchanger and other fields
Special-shaped seamless steel pipe is a general term for seamless steel pipes with other cross-sectional shapes other than round pipes. Such as square, rectangle, cone, trapezoid, spiral, etc. It can better adapt to the particularity of the conditions of use, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, textile and boiler manufacturing. According to the shape, it is divided into: outer hexagonal inner round steel pipe, outer circular inner hexagonal steel pipe, inner and outer hexagonal steel pipe, flat oval steel pipe, oval steel pipe, triangular pipe, L-shaped steel pipe, octagonal pipe, mushroom-shaped pipe, bread-shaped pipe, D-shaped pipe , Concave-shaped pipe, convex-shaped pipe, umbrella-shaped pipe, P-shaped pipe, ingot-shaped pipe and other special-shaped steel pipes, the shape of special-shaped steel pipes is produced according to user needs.
The seamless square tube is a long strip of steel with a hollow section and no joints around the periphery. The inside of the pipe is hollow, with a certain cross-sectional area, and is used in large quantities as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials, etc.
Copper tube is a kind of non-ferrous metal tube, often divided into brass tube and copper tube, which are pressed and drawn seamless tubes. Copper pipes have the characteristics of good electrical conductivity and thermal conductivity, and are the main materials for conductive fittings and heat dissipation fittings of electronic products, and have become the first choice for modern contractors to install water pipes, heating and cooling pipes in all residential commercial buildings. The copper pipe has strong corrosion resistance and is not easy to be oxidized.
The production process of seamless steel pipe
①The main production process of hot-rolled seamless steel pipe (△main inspection process):
Tube blank preparation and inspection△→tube blank heating→piercing→tube rolling→steel reheating→fixed (reduced) diameter→heat treatment△→finished pipe straightening→finishing→inspection△(non-destructive, physical and chemical, Taiwan inspection) → storage
②The main production process of cold-rolled (drawn) seamless steel pipe:
Billet preparation→pickling lubrication→cold rolling (drawing)→heat treatment→straightening→finishing→inspection
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Name: Gaby D. time:2022-02-15 11:13:53
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