1.What is DX51D?
Standard and brand: DX51D is a brand in the European standard (EN 10346). The corresponding standard in China is GB/T 2518, and the corresponding brand may be DX51D+Z or DC51D+Z.
Name meaning: "D" stands for "Drawing", indicating that the steel is suitable for cold forming processing, such as stamping, bending, etc.; "X" means "the base material is low carbon steel"; "51" is a serial number, there is no specific mechanical property requirement, but it must meet the formability requirements; "Z" represents hot-dip pure zinc coating
2.What are the characteristics of galvanized DX51D?
Good corrosion resistance: The zinc layer provides electrochemical protection, which can protect the steel substrate from corrosion in harsh environments and extend the service life. The thickness of the galvanized layer is generally above 100 microns, and the zinc layer is uniform and not easy to fall off.
Excellent formability: It is suitable for cold processing processes such as deep drawing and bending. It is not easy to crack during processing and can meet the forming requirements of various complex shapes.
Good strength and toughness: As a low-carbon steel material, it has certain strength and good toughness, can withstand certain external forces and deformation, and is suitable for various occasions with strength and rigidity requirements.
Good surface quality: It is usually smooth, and the surface treatment can also be customized, such as no zinc flowers, small zinc flowers, etc., which can meet the requirements of surface aesthetics and functionality in different application scenarios.
3.What are the specifications of the DX51D?
Thickness: usually between 0.3mm-3.0mm, common specifications include 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, etc.
Width: generally 600mm-1250mm, of which 1000mm and 1250mm are more common.
Length: can be customized according to demand, common length is between 1m-12m. ◦ Zinc layer weight: common specifications include 80g, 120g, 150g, 180g, 275g per square meter, etc. The specific zinc layer weight will be determined according to the use environment and customer needs.
Mechanical properties: yield strength is usually 140MPa-300MPa, tensile strength is generally 270MPa-500MPa, and elongation is not less than 22% (A80mm specimen).
4.What are the application areas of DX51D?
Construction field: widely used in the production of building components such as roofs, walls, floors, as well as metal products such as ventilation ducts and water tanks, which can provide good anti-corrosion performance and structural strength.
Automobile manufacturing: can be used to manufacture non-structural parts of automobiles, such as interior panels, body covers, etc., which can not only meet the molding requirements of parts, but also play a role in corrosion prevention and beauty.
Home appliance industry: The use of galvanized DX51D material for the shells, liner, brackets and other parts of home appliances such as refrigerators, washing machines, and air conditioners can ensure that the products are not corroded during long-term use, and are also easy to process and shape.
Mechanical field: suitable for the manufacture of structural parts, shafts, gears and other parts of various mechanical equipment, providing good wear resistance and corrosion resistance for mechanical parts
5.What is the production process of DX51D?
It is mainly produced by hot-dip galvanizing process, where the pre-treated steel substrate is immersed in molten zinc liquid, so that the steel surface reacts chemically with the zinc to form a tightly bonded zinc layer. This process makes the zinc layer have good adhesion and durability with the steel substrate, which can effectively improve the corrosion resistance of the steel.