News

  • Stainless steel plate 201 and 304 pressure difference
    Post time: 01-08-2020

    Strength (pressure) for 201 stainless steel is high, because 201 stainless steel contains high Mn (manganese) content, carbon is 201 stainless steel is high, the two alloys determine the strength (pressure), the machine comprehensive performance is good 304 stainless steel.   However, the c...Read more »

  • Performance comparison of 201 stainless steel and 304 stainless steel
    Post time: 01-07-2020

    1, fatigue strength, 201 hardness is larger, toughness is not as 304, or 304 fatigue resistance is better. 2, 304 stainless steel plate quality is better, but the price is expensive, 201 is poor. 304 stainless steel is imported stainless steel plate,201 is domestic stainless steel plate. 3, 201 ...Read more »

  • Hongwang group chairman dai jinhui’s speech on New Year’s day 2020
    Post time: 01-03-2020

      Timing updates, early spring, we will take a new step in pursuit of dreams. On the occasion of the New Year’s day, on behalf of hongwang group, I would like to extend my best wishes for the New Year to the leaders at all levels and friends from all walks of life who have been caring...Read more »

  • Tip: the main elements of stainless steel
    Post time: 12-25-2019

    Nickel: nickel is the most important core element of stainless steel, which can improve the strength, toughness and hardenability of steel. When the content is high, some physical properties of steel and alloy can be significantly changed, and the corrosion resistance of steel can be improved. m...Read more »

  • A little knowledge of the meaning of stainless steel
    Post time: 12-24-2019

    Steel that does not rust is usually taken literally as stainless steel, but technically it is not. We usually will not rust in the atmosphere, fresh water and other weak corrosive medium steel is called stainless steel, and will be in acid, alkali, salt, seawater and other harsh corrosive medium...Read more »

  • 5 tips on stainless steel
    Post time: 12-23-2019

      Stainless steel is a kind of high alloy steel that can resist corrosion in the air or chemical corrosion medium, with beautiful surface and good corrosion resistance, without surface treatment such as plating color. Tip 1: there are many kinds of stainless steel, which can be divided into...Read more »

  • Common stainless steel 316 and 316L difference
    Post time: 12-19-2019

    316 stainless steel: 316 stainless steel due to the addition of molybdenum, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength is particularly good, can be used in the harsh conditions; Excellent work hardening (non-magnetic). Scope of application: sea wa...Read more »

  • Main features of stainless steel
    Post time: 12-18-2019

    (1) weldability Product use of different requirements for welding performance are also different. A kind of tableware does not do the requirement to the welding performance, even including part of the pot enterprises. But most products require good welding properties. Like second class tableware...Read more »

  • Stainless steel through which quality inspection to determine the unqualified?
    Post time: 12-17-2019

    1. If the surface of the workpiece is attached with oil when the stainless steel plate is heated, the thickness and composition of the oxide skin of the oil attachment part are different from that of other parts, and carburizing will occur. The carburized part of oxidized subcutaneous matrix met...Read more »

  • What are the main factors affecting stainless steel corrosion?
    Post time: 12-16-2019

      1. Content of alloying elements Generally speaking, the content of chromium in 10.5% steel is not easy to rust. The higher the content of chromium and nickel, the better the corrosion resistance, such as 304 material nickel content in 8-10%, chromium content up to 18-20%, such stainless s...Read more »

  • Performance comparison of 201 stainless steel and 304 stainless steel
    Post time: 12-13-2019

      1, mechanical properties: in terms of fatigue strength, 201 hardness is larger, toughness is not as good as 304, or 304 fatigue resistance is better; 2. Price: take square tube 50*50*1.4*6000mm as an example, the price of 304 is 248 yuan/strip, while the price of 201 is 124 yuan/strip; 30...Read more »

  • Stainless steel plates are used in the transportation process
    Post time: 12-11-2019

    In the process of transportation and storage of stainless steel plates, the use principles should be observed: Steel plate transport must be packed, be careful when unpacking, operation is strictly prohibited a steel plate on another plate uneven movement. Steel plate storage is generally vertic...Read more »

  • Seven tips to remove color stainless steel door dirt
    Post time: 12-10-2019

    1. The dirt If only there is dirt on the surface of the door, then wipe it with detergent Can be. But what should notice is the material of stainless steel door is lens face or pull silk, if lens face is about to pay special attention to clean tool, dishcloth must be clean without dust. In addit...Read more »

  • What is the stainless steel pickling process?
    Post time: 12-09-2019

      Usually a method of cleaning a metal surface. Generally, the product is immersed in an aqueous solution of sulfuric acid to remove the oxide film on the metal surface. It is the pretreatment or intermediate treatment of electroplating, enamel, rolling and other processes. There are three ...Read more »

  • Introduction to the polishing of stainless steel products
    Post time: 12-07-2019

    1, coarse grinding, this process is mainly to remove the workpiece welding of solder joints and above in shangbu process, bruised to joint the rounded preliminary forming, horizontal and vertical plane basic no scratches, no collision, the purpose of the usually use 600 # of abrasive belt grindi...Read more »

  • Mechanical polishing of stainless steel
    Post time: 12-06-2019

      Mechanical polishing Mechanical cutting, polishing is to rely on material surface plastic deformation after removed by polishing the convex part of the smooth surface polishing method, commonly used article oil stone, wool wheel, abrasive paper, etc., with manual operation is given priori...Read more »

  • How is this surface effect achieved in stainless steel?
    Post time: 12-05-2019

      1) mirror polishing: this is a very mature process, with sand belt + high speed polishing machine to remove the stainless steel skin, and then with hemp wheel + cloth wheel polishing, can achieve different degrees of mirror bright surface. To further mention the brightness, you need nicke...Read more »

  • Stainless steel rust spot how to deal with?
    Post time: 12-04-2019

      1. Chemical methods After pickling, it is important to properly flush with clean water to remove all contaminants and acid residues. After all treatment with polishing equipment to re-polishing, with polishing wax closed can. Local slight rust spot can also be used 1:1 gasoline, oil mixtu...Read more »

  • Stainless steel color pull plate processing technology
    Post time: 12-03-2019

      Rolling plate: Reasons for the production of calender: because there is a big difference between hot-rolled coil and cold-rolled coil, and the price of rerolled coil is cheaper than that of cold-rolled coil, the calender has both price advantages and a large margin, so many manufacturers ...Read more »

  • There are problems in the process of stainless steel products
    Post time: 12-02-2019

      1. Weld defects: the weld defects are serious, so manual and mechanical polishing is adopted to make up for them, resulting in uneven surface and poor aesthetics. 2. Inconsistent surface: only pickling and passivation of the weld will cause uneven surface and affect the appearance. 3. Scr...Read more »

  • How is stainless steel classified?
    Post time: 11-29-2019

      1. Structure classification: austenitic stainless steel, martensitic stainless steel, ferritic stainless steel, duplex stainless steel and submerged hardened stainless steel. 2. Chemical composition classification: Cr stainless steel, cr-ni stainless steel, cr-mn-n-ni stainless steel, ult...Read more »

  • Several methods of surface treatment of stainless steel are commonly used
    Post time: 11-28-2019

    1. Surface whitening treatment: during the processing of stainless steel, after rolling, binding, welding or after artificial surface fire heating, black oxide skin is produced. This hard gray-black oxide skin is mainly NiCr2O4 and NiF two EO4 components, generally used before hydrofluoric acid ...Read more »

  • Vice mayor of yangjiang visited yangjiang hongwang
    Post time: 11-27-2019

      Recently,  feng songbai, vice mayor of yangjiang city, led a group of leaders from the municipal bureau of industry and information technology and the municipal bureau of ecological environment to visit the production workshop of high-quality cold-rolled stainless steel with an annual out...Read more »

  • Why does 304 stainless steel rust?
    Post time: 11-26-2019

    1. Chlorine ion exists in the operating environment Chloride ions are widely found in salt, sweat, sea water, sea breeze, soil and so on. Stainless steel in the presence of chlorine ions in the environment, corrosion quickly, even more than ordinary low carbon steel. No solid solution treatment ...Read more »

  • The difference between 304 and 316 stainless steel
    Post time: 11-25-2019

    304 stainless steel: 304 stainless steel is the most common type of steel, as a wide range of USES of steel, with good corrosion resistance, heat resistance, low temperature strength and mechanical characteristics; Stamping, bending and other thermal processing, no heat treatment hardening pheno...Read more »

  • Properties and characteristics of the main steels of stainless steel
    Post time: 11-23-2019

    1, 304: due to better corrosion resistance, high strength, long life, and a good color and surface gloss, as a rust resistant heat resistant steel is the most widely used, suitable for food equipment, general chemical equipment, especially for decoration industry, such as stainless steel fence. ...Read more »

  • Stainless steel 201 is different from 304
    Post time: 11-22-2019

      1, specification: commonly used stainless steel plate is divided into 201 and 304 two models, the actual composition is different, 304 is better in quality, but more expensive, 201 is worse. 304 is imported stainless steel plate,201 is domestic stainless steel plate. 2, 201 is a section o...Read more »

  • Linyi municipal party secretary visited shandong hongwang stainless steel processing investigation
    Post time: 11-21-2019

    Recently, linyi party secretary wang yujun led linyi city high quality development site exchange leaders and entrepreneurs to visit shandong hongwang stainless steel finishing project site observation and investigation. Xu tao, chairman of the municipal CPPCC, du dechang, director of the standin...Read more »

  • Processing difficulties of stainless steel materials
    Post time: 11-20-2019

      Material property analysis 1. Strong toughness As we all know, the existence of collective iron stainless steel material leads to the high hardness of the material, especially under high temperature conditions, the reality of the high hardness, high strength is difficult to achieve accura...Read more »

  • What are the advantages of stainless steel
    Post time: 11-19-2019

    1. Chemical properties: the chemical and electrochemical corrosion resistance of steel is the best, second only to titanium alloy. 2. Physical properties: heat resistance, high temperature resistance, low temperature resistance and even ultra-low temperature resistance. 3, mechanical property, a...Read more »

  • Hongwang group was invited to attend the third China stainless steel summit in 2019
    Post time: 11-18-2019

    Recently, hosted by [I want stainless steel] www.51bxg.com by Shanghai futures exchange, “the 3rd China stainless steel summit 2019″ was held in wuxi, jiangsu province. This industry summit, 35 large-scale stainless steel factories gathered in taihu, about 500 guests including stainl...Read more »

  • Leaders of the standing committee of xiamen municipal people’s congress visited hongwang, fujian
    Post time: 11-16-2019

    Recently, director of the standing committee of xiamen municipal people’s congress Chen jiadong and other xiamen national and provincial people’s congress representatives visited fujian hongwang research. Jin min, director of the standing committee of the people’s congress of n...Read more »

  • What are the classification of stainless steel tubes?
    Post time: 11-15-2019

    Stainless steel pipe can be divided into ordinary carbon steel pipe, high-quality carbon structure steel pipe, alloy structure steel pipe, alloy steel pipe, bearing steel pipe, stainless steel pipe, double metal composite pipe, coating and coated pipe to save precious metal and meet special requ...Read more »

  • Knowledge of stainless steel processing
    Post time: 11-14-2019

    Stainless steel processing points note: affected by the processing temperature is easy to produce internal stress, a large number of chlorine ions to stress corrosion. In the process of plasma cutting, high local temperature leads to coarse grain of austenitic stainless steel, even produces loca...Read more »

  • Basic properties of stainless steel materials
    Post time: 11-13-2019

    Stainless steel is a kind of more corrosion-resistant steel, but is not absolutely not rusty steel, until now did not invent in any condition is not corroded steel, so specific steel is suitable for use in a certain environment. The corrosion resistance principle of stainless steel is: Cr2O3 blu...Read more »

  • The difference between pickling and passivation of stainless steel
    Post time: 11-12-2019

    One, the nature is different 1, pickling: the use of acid solution to remove the surface of iron and steel oxide and rust, a method of cleaning the surface of metal. 2. Passivation: the process in which the metal is oxidized by strong oxidant or electrochemical method to make the surface become ...Read more »

123456 Next > >> Page 1 / 6
WhatsApp Online Chat !