It has excellent strength, toughness and wear resistance, high hardenability, no temper brittleness, good weldability, little tendency to form cold cracks, good machinability and cold strain plasticity. Tensile strength σb (MPa) ≥ 885 (90), elongation δ5 (%) ≥ 12, cross-sectional shrinkage ψ (%) ≥ 50, impact energy Akv (J) ≥ 35, impact toughness value αkv (J/cm²) ≥ 98 (10), hardness ≤ 212HB
DC51D, DC52D, DC53D, DC54D+Z are different grades of galvanized steel sheets. Galvanized steel sheets are made by dipping thin steel sheets into a molten zinc bath to adhere a layer of zinc to the surface. They are mainly produced by continuous galvanizing process, that is, the rolled steel sheets are continuously dipped into a molten zinc bath to make galvanized steel sheets.
In a corrosive environment, zinc will corrode before steel, thus protecting the steel base. In addition, the zinc layer will form a certain protective film in terms of corrosion resistance, preventing excessive oxidation and slowing down the corrosion rate. It can also further prevent steel corrosion by applying zinc powder paint during maintenance, ensuring the mechanical properties and other safety properties of the material. Other characteristics: hot-dip galvanizing has stable chemical composition, pure steel, excellent dimensional accuracy, high coating control accuracy, excellent coating performance, and good welding performance.
Hot dip galvanized steel coil has good forming performance, paintability and weldability, and is suitable for forming processes such as stamping and bending. It is an environmentally friendly resource because of its strong corrosion resistance, low environmental cost and 100% recyclability.
Galvanized angle steel is a specific type of galvanized steel. Galvanized steel is a steel material that has been galvanized. Galvanizing is a technology that coats the surface of steel with a layer of zinc. This layer of zinc can prevent the steel material from corrosion.
SS400 is a steel grade specified in the Japanese JIS standard, where SS stands for structural steel and 400 means its minimum tensile strength is 400MPa. Its main chemical components include carbon (C), silicon (Si), manganese (Mn), sulfur (S) and phosphorus (P). The carbon content is about 0.05-0.20%, the manganese content is about 1.40-1.75%, and it also contains a small amount of impurity elements such as sulfur and phosphorus. For SS400 angle steel, its chemical composition should comply with the provisions of JIS G3112, with a carbon content between 0.18%-0.28%, a silicon content between 0.12%-0.30%, a manganese content between 0.70%-1.00%, and a certain amount of phosphorus (P) and sulfur (S) elements to increase hardness and strength.
