• Zhongao

News

  • About galvanized steel st

    Galvanized strip is a common steel product that is coated with a layer of zinc on the surface of the steel to increase its corrosion resistance and extend its service life. Galvanized strips are widely used in construction, furniture, automobile manufacturing, power equipment and other fields, an...
    Read more
  • Recent steel market

    Recently, the steel market has shown some changes. First, steel prices have fluctuated to a certain extent. Affected by the global economic situation and international trade environment, steel prices have risen and fallen in a certain period of time. Secondly, there are also differences in steel ...
    Read more
  • What is free-cutting steel?

    1.General introduction of free-cutting steel Free cutting steel, also refers as the free-machining steel, is the alloy steel by the addition of one or more free cutting elements such as sulfur, phosphorus, lead, calcium, selenium and tellurium to improve its cutting property. Free cutting steel i...
    Read more
  • Difference Between Brass and Tin Bronze and Red Copper

    ONE-Different Purposes: 1. Purpose of brass: Brass is often used in the manufacturing of valves, water pipes, connecting pipes for internal and external air conditioning units, and radiators. 2. Purpose of tin bronze: Tin bronze is a non-ferrous metal alloy with the smallest casting shrinkage, us...
    Read more
  • Essential Methods to Enhancing the Longevity and Anti-Corrosion Performance of Hot-Dip Galvanized Steel Strip

    Introduction: Welcome to Shandong zhongao steel  Co., Ltd – a leading metal factory in China with over 5 years of experience in exporting high-quality hot-dip galvanized steel strips and coils. In this blog, we will discuss the crucial methods to prolong the life of hot-dip galvanized strip steel...
    Read more
  • The Function and Characteristics of Cr12MoV Cold Working Die Steel

    Ⅰ-What is Cr12MoV Cold Working Die Steel The Cr12MoV cold working die steel produced by zhongao belongs to the category of high wear-resistant micro deformation tool steel, which is characterized by high wear resistance, hardenability, micro deformation, high thermal stability, high bending stren...
    Read more
  • What is weathering steel

    Introduction to weathering steel materials Weathering steel, that is, atmospheric corrosion resistant steel, is a low alloy steel series between ordinary steel and stainless steel. weathering steel is made of ordinary carbon steel with a small amount of corrosion resistant elements such as copper...
    Read more
  • The common surface processes of aluminum alloys

    Commonly used metal materials include stainless steel, aluminum alloy, pure aluminum profiles, zinc alloy, brass, etc. This article mainly focuses on aluminum and its alloys, introducing several common surface treatment processes used on them. Aluminum and its alloys have the characteristics of e...
    Read more
  • What Is The Difference Between Tool Steel And Stainless Steel?

    Although they are both steel alloys, stainless steel and tool steel differ from each other in composition, price, durability, properties, and application, etc. Here are the differences between these two types of steel.   Tool Steel vs. Stainless Steel: Properties Both stainless steel and tool ste...
    Read more
  • How to choose the most suitable PPGI for different industries

    1. National key project color coated steel plate selection plan Application industry National key projects mainly include public buildings such as stadiums, high-speed rail stations, and exhibition halls, such as the Bird’s Nest, Water Cube, Beijing South Railway Station, and the National Grand T...
    Read more
  • Surface treatment on seamless steel pipes

    Ⅰ- Acid Pickling 1.- Definition of Acid-Pickling: Acids are used to remove iron oxide scale chemically at a certain concentration, temperature, and speed, which is called pickling. 2.- Acid-Pickling classification: According to the type of acid, it is divided into sulfuric acid pickling, hydrochl...
    Read more
  • The difference between aluminum square tube and aluminum profile

    There are many types of aluminum profiles, including assembly line profiles, door and window profiles, architectural profiles, etc. Aluminum square tubes are also one of the aluminum profiles, and they are all formed by extrusion. The aluminum square tube is an Al-Mg-Si alloy with medium strength...
    Read more