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  • 02/12/2024

    FEATURE| Main Shipping Routes for International Logistics Transportation

    The routes of maritime transport are distributed between the oceans, which is also the advantage of maritime transport over other modes of transport. When choosing a route, the conditions of the cargo, ships, and ports must be considered, and a comprehensive assessment of the system organization must be made before a reasonable choice can be made.

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  • 30/09/2024

    FEATURE|The Analysis of the Development Status of Steel Market in Shandong Province(China)

    ​Affected by the terminal market, domestic steel demand will continue to be sluggish, which will lead to inventory backlogs. Therefore, merchants generally begin to seek overseas orders. Domestic steel prices are in the global price trough, and the RMB exchange rate is still hovering at a low level, making China's steel exports more cost-effective.

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  • 28/08/2024

    FEATURE|The Analysis of the Impact of China's New Rebar Standard-GB 1499.2-2024

    On June 25, 2024, China announced the new national standard for rebar -GB 1499.2-2024 (after this referred to as the new national standard) and announced that the policy would be officially implemented on September 25, with a buffer period of 3 months.

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  • 29/07/2024

    FEATURE| The Knowledge Summary of Seamless, Welded Steel Pipes, Stainless Steel Pipes, and Special-shaped Steel Pipes

    A steel pipe is a steel material with a hollow section whose length is much greater than its diameter or circumference. Steel pipes have the advantages of high strength and durability, and those pipes are easy to cut, weld, and form.

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  • 28/06/2024

    FEATURE| Analysis of the Difference Between Galvanized Steel Sheet and Galvalume Steel Sheet & Plate

    Galvanized steel sheet & plate and galvalume steel sheet & plate are two common anti-corrosion steel plates widely used in construction, automobiles, home appliances, and other fields. The two products have similarities and differences.

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  • 04/06/2024

    FEATURE|A New Fashion in the Field of House Construction, Colored Stone Metal Tile

    Stone-coated metal roofing tile not only has the natural, deep, and excellent decorative properties of traditional clay tile but also has the light, strong, and durable performance of modern metal tile. It is the main trend in the development of international advanced roofing materials.

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  • 30/04/2024

    FEATURE|Comparison of Common Mold Steel Grades in China and Other Countries

    Mold steel is a type of steel used to make molds, such as cold stamping dies, hot forging dies, and die-casting dies. Molds are the main processing tools for manufacturing parts in industrial sectors such as machinery manufacturing, radio instruments, motors, and electrical appliances. Since the production standards of various countries are different, this has caused certain difficulties for customers in international trade. CSMC will organize and display the Chinese grades and other countries' grades to help customers conduct trade more smoothly.

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Short News
19/05 17:18
< Seamless Steel Pipe, size: Φ180*40, grade: 45#(ASTM 1045), brand: HUITONG. Qingdao - Chengyang reduction by --31.09 tons
19/05 17:16
< Stainless Steel Angle, size: 50*3, grade: 304(304), brand: QINGSHAN. Ningbo - Guomao increased by 27.97 tons
19/05 17:14
< Medium-Thick Stainless Steel Plate, size: 30.0*1500*6000, grade: 304/NO.1(304/NO.1), brand: TAIGANG. Shanghai - Caoan increased by 16.88 tons
19/05 17:11
< H-beam, size: 400*200*8*13, grade: Q235B(ASTM A36), brand: JINXI. Liaocheng - Guanxian reduction by --17.83 tons
19/05 17:10
< On May 19, the price of 300 series hot-rolled stainless steel coil in Wuxi rose steadily. 310S/NO.1 TISCO 8.0*1520*C (mill edge) 4438.40, up 34.67. (USD/ton)
Read More
19/05 17:09
< Prepainted Steel Coil, size: 0.6*1000*C, grade: TDC51D+Z(ASTM A755/A755M), brand: BAOSTEEL. Shanghai - Caoan reduction by --5.23 tons

Answers

  • What are the characteristics of cathode flat steel?

    Cathode flat steel is a high alloy steel, which is usually made of high conductivity and corrosion resistance to ensure stability and efficiency during the electrolysis process.

    ‌Cathode flat steel is a flat-shaped steel made of high-quality steel. Compared with traditional steel, the characteristics of cathode flat steel:
    High strength: The cathode flat steel has been treated with a special process and has high tensile strength and bending strength, and can withstand greater loads.
    Corrosion resistance: The cathode flat steel has been treated with cathodic protection and coated with a corrosion-resistant coating on the surface, which can be used for a long time in harsh environments without corrosion.
    Lightweight and efficient: Due to the design of the flat steel, the cathode flat steel is lighter in weight, and the installation is more convenient and efficient.
    Environmental protection and energy saving: The energy required to manufacture cathode flat steel is relatively small, and resource waste can be reduced through recycling and reuse, which is in line with modern environmental protection concepts.


  • What is the difference between hot-dip galvanizing and cold-dip galvanizing?

    1. Hot-dip galvanizing: also called hot-dip galvanizing and hot-dip galvanizing is an effective way to prevent metal corrosion. It melts the zinc ingot at high temperature, puts in some auxiliary materials, and then immerses the metal structure in the galvanizing tank to make a layer of zinc adhere to the metal component, thereby achieving the purpose of corrosion protection. The advantage of hot-dip galvanizing is that it has strong anti-corrosion ability, and the adhesion and hardness of the galvanized layer are good, thus achieving the purpose of corrosion protection.

    Cold galvanizing: It is electrogalvanizing, with a small amount of zinc, only 10-50g/m2, which is a process of using electrolysis to make a metal film adhere to the surface of metal or other material parts. The process of forming a uniform, dense, and well-bonded metal layer can prevent corrosion, improve wear resistance, conductivity, reflectivity, and enhance beauty.

    2. Different reaction methods
    Hot-dip galvanizing is a chemical treatment that belongs to an electrochemical reaction. Hot-dip galvanizing pipes react molten metal with the iron matrix to produce an alloy layer, thereby combining the matrix and the coating.

    Cold galvanizing is a physical treatment, which is just brushing a layer of zinc on the surface, so the zinc layer is easy to fall off. Hot-dip galvanizing is mostly used in construction.

    3. Different processes
    Hot-dip galvanizing involves degreasing, pickling, soaking, dry the workpiece, immersing it in the dissolved zinc liquid for a certain period, and then taking it out.

    Cold galvanizing is to use electrolytic equipment to put the workpiece into a solution composed of zinc salt after degreasing and pickling, and connect it to the negative electrode of the electrolytic equipment; place a zinc plate opposite the workpiece and connect it to the positive electrode of the electrolytic equipment, turn on the power supply, and use the directional movement of the current from the positive electrode to the negative electrode to deposit a layer of zinc on the workpiece.

    Hot-dip galvanized square tubes emit fewer pollutants, mainly waste acid from pickling workpieces.

    The pollutants of cold galvanizing mainly include waste acid from pickling workpieces, electroplating waste liquid, waste passivation liquid, etc. The types and quantities of emissions are much greater than hot-dip galvanizing.


  • What is the difference between galvalume steel sheet and stainless steel?

    1. galvalume steel sheet is designed to extend the service life of the steel sheet by covering its surface with a layer of zinc and aluminum to prevent corrosion. This thin steel sheet that has been galvalume is called galvalume steel sheet.
    The key to the production of galvalume steel sheet lies in the zinc-aluminum coating on its surface. This process effectively prevents the oxidation of the steel surface. Galvalumed steel sheet usually has the characteristics of small zinc flowers, and its surface presents a white tone.

    2. Stainless steel is known for its excellent corrosion resistance and can resist erosion by air, steam, water and various chemically corrosive media. The production of stainless steel depends on other metal elements added to the steel. Through the changes in the internal structure of these elements, the product has excellent rust resistance. For example, chromium stainless steel, chromium-nickel stainless steel, and chromium-manganese-nitrogen stainless steel are all common types of stainless steel. The surface of stainless steel is relatively smooth, without any decorations, showing its unique metallic texture.


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