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 Electric furnace steelmaking as the name implies, is to use temperature as high as 2000 - degree arc provide smelting heat source, the use of scrap in raw materials, pure oxygen oxidant production, it is because of the uniqueness of electric furnace steelmaking, so can produce high quality steel, but because the technology of power consumption big, the cost is relatively high, so now also appear only in some large enterprises.3% of the iron carbon alloy, according to different classification method, the steel can be divided into different categories, for example, in accordance with the quality, can be divided into ordinary steel, high-quality steel and advanced high-quality steel, the criterion for divided these steel is one of the elements of phosphorus (P) and sulfur (S), because they are both belong to the harmful elements, so of course content, the less the better the quality of the steel.

Said to steel are going to have to mention stainless steel, stainless steel is steel upgrade, people usually put the chromium content is more than 12% or greater than 8% of the nickel content alloy steel known as stainless steel, because in the atmosphere has certain corrosion resistance of stainless steel, high strength, torque tube longer durability, so the current stainless steel has become one of the most common steel material. Steel is mainly refers to the carbon content was between 0. Classified according to chemical composition, can be divided into carbon steel and alloy steel, carbon steel as the name suggests is the high carbon content of steel, the carbon content of mild steel 0. Now what we mean by the iron and steel products are mainly divided into three broad categories: pig iron, crude steel, square rectangular tubes.04% ~ 2. Crude steel after some ways such as forging, can be a torque tube.60% or less, but also have high, medium and low alloy steel.

Steel is mainly refers to the carbon content was between 0.25% ~ 0. Steelmaking by oxidation of carbon and the content of impurity elements in cast iron, eventually reach required standard content of the composition of the steel, currently the most used smelting method for open hearth steelmaking, converter steelmaking and electric furnace steelmaking, open hearth steelmaking mainly gas and heavy oil as fuel, directly under the flame heating method, melt steel scrap and pig iron and other raw materials made from steel, along with the progress of The Times, this method has been gradually out of the line of sight of people, is now the largest number of people to use, and electric furnace steelmaking converter steel-making, converter steelmaking in pig iron steel as raw material, add the right amount of scrap steel manufacturing, efficiency a lot quicker than open hearth steelmaking, the cost is also reduced a lot, so now a lot of large steel iron and steel enterprises are using this method.25% or less, medium carbon steel carbon content is between 0., but according to the forming methods, microstructure and steel can be divided into many types, here I can say clear. In accordance with the purposes, can also be divided into construction and engineering steel, structural steel, tool steel, special steel and professional steel performance, etc.

When using stainless steel must be main its daily maintenance work, in order to prolong the life span of stainlessSteel.3% of the iron carbon alloy, according to different classification method, steel can be divided into different categories, for example, in accordance with the quality, can be divided into ordinary steel, high-quality steel and advanced high quality steel Now almost in all walks of life will see the figure of the iron and steel, it is currently the most widely used, the largest number of base material, because of steel and iron smelting process compared with other metal is more efficient, cost is relatively low, and when we will chromium, nickel, manganese and other metal elements in iron, also can have different properties of metal materials, it is because of these characteristics of the steel, believe in the future, iron and steel will appear in more different form in more industries.

Now almost in all walks of life will see the figure of the iron and steel, it is currently the most widely used, the largest number of base material, because of steel and iron smelting process compared with other metal is more efficient, cost is relatively low, and when we will chromium, nickel, manganese and other metal elements in iron, also can have different properties of metal materials, it is because of these characteristics of the steel, believe in the future, iron and steel will appear in more different form in more industries.60%, the carbon content of high carbon stainless steel welded pipe steel for 0

Submerged arc welding as the name implies: based on the embedded welding seam, submerged arc flux for granular straight seam steel pipe, play at the submerged arc straight seam steel pipe weld cooling speed.  Submerged arc straight seam steel pipe with high frequency straight seam steel pipe forming the difference  Submerged arc straight seam steel pipe forming JCOE  Submerged arc straight seam steel pipe molding using letters of JCOE image into, is through successive stamping of the steel plate ten thousand tons of press, make steel plate gradually variant of the cold forming process.  Submerged arc straight seam steel pipe with high frequency straight seam steel pipe in other aspects of difference  Production range  Submerged arc diameter 325 mm to 1420 mm steel pipe production, production of wall thickness from 7. Such as L245 L485, X42 to X80, can perform 9711, API straight seam line pipe standards  Using industry  Submerged arc steel tube can be used in large diameter, oil and gas transmission pipeline steel pipe pile, steel structure, bottom steel pipe.1 mm to 18 mm production.  Hunan great steel pipe co.

 Submerged arc with high frequency straight seam steel pipe welding process  Submerged arc straight seam steel pipe  Submerged arc straight seam steel pipe using molten filling weld wire and plate, can be understood as straight seam steel pipe welding seam by filler.  Production material  Submerged arc can produce any material of straight seam submerged arc welding steel pipe straight seam steel pipe.  High frequency pipe production 15 mm to 660 mm diameter, wall thickness from 0.  High frequency pipe maximum production pipeline steel quality. Commonly used material Q235B, 16 mn, Q345B, L245, L290, X42 ~ X70.,ltdproduction and business operation 57 ~ 1620 mm in diameter, wall thickness of 2 ~ 60 mm LSAW steel pipe, galvanized straight seam steel pipe, heat expansion straight steel tube located at straight seam steel pipe, etc. And a maximum 9711, API straight seam submerged arc tube ASWL standards.  High frequency straight seam steel pipe forming FXH  High frequency time gradually into a circular steel pipe molding process for roller.  Look the difference between  High frequency straight seam steel pipe and submerged arc straight seam steel pipe of the tracheostomy tube difference between one of the most obvious is the appearance, high frequency straight seam steel pipe outsourcing finishing smooth, without the weld residual high, tube is grey  .

First submerged arc straight seam steel pipe, the pipe body microscopic bar type indentation, steel plate surface oxide slightly off. stainless steel u-tubeStraight seam submerged arc JCOE welded steel pipe: with the difference between theERW steel pipewelding process, molding process, the scope of production, production materials, use of industry.  High frequency straight seam steel pipe  High frequency straight seam steel pipe is adopted the high frequency current skin effect, make the steel plate welding seam edge in a very short in between rapid melting, and under the action of external force, make the weld fusion together, weld for the parent metal welding.5 mm to 80 mm. And steel tube appearance apparent difference in high frequency straight seam steel grey. In appearance also has a bright appearance difference.  High frequency pipe can be used for space truss structure, small fluid tube, wire and tube, the basic structure, fluid pressure steel pipe. Products in strict accordance with the GB/T3091-2001 standard, American standard ASTM A53, ASTM A500 featured standard, British standard, DIN standard, European standard EN 10255/10240 2440/2444; EN10219 standard production.