Wuhan Iron and Steel Galvanized Coil 0.75 * 1250 * C Zinc Layer 120g Building Appliance Material

Description :

  Wuhan Iron and Steel Galvanized Coil is a steel product that covers a layer of zinc on the surface of a cold-rolled substrate through hot-dip coating technology, mainly to solve the rust prevention problem of steel materials in humid and corrosive environments. The product specifications are a thickness of 0.75mm, a width of 1250mm, and a zinc layer weight of 120g/m ². It is suitable for building structural components, household appliance casings, and general industrial products with moderate requirements for corrosion resistance. Wuhan Iron and Steel Galvanized Coil, with its stable substrate properties and uniform coating distribution, has become a common choice for procurement personnel to balance cost and durability when selecting, especially suitable for scenarios that require stamping, bending, and other processing in the future.

  The galvanized coil of Wuhan Iron and Steel Group complies with the national standard GB/T 2518 or relevant enterprise standards, and the surface quality meets the requirements of normal commercial grade, allowing for slight differences in zinc flowers that do not affect use or a small amount of passivation marks. Its core parameters include a substrate thickness of 0.75mm, a tolerance range usually controlled within ± 0.05mm, a width of 1250mm that meets standard strip specifications, and a zinc layer adhesion of 120g/m ² on both sides, ensuring a rust prevention life of 3-5 years or more in conventional atmospheric environments. In terms of material mechanical properties, the yield strength is usually between 230-280MPa, the elongation is greater than 26%, and it has good formability, meeting the requirements of most cold bending and shallow stretching processes.

  When selecting galvanized coils from Wuhan Iron and Steel Group, it is necessary to clearly distinguish the differences in their applicable scenarios compared to aluminum zinc coated coils and electroplated galvanized sheets. The 120g/m ² zinc layer belongs to the medium anti-corrosion level and is suitable for indoor dry environments or short-term outdoor exposure. If used in high humidity, severe acid-base corrosion, or long-term outdoor environments, it is recommended to choose products with higher zinc layers (such as 180g/m ² or above) or aluminum zinc plated materials. In addition, a thickness of 0.75mm belongs to the thin specification and is suitable for components that are sensitive to weight or have low structural stress. If it involves load-bearing structures or deep stamping processing, its strength needs to be verified to meet the design requirements to avoid cracking caused by earthquakes, wind loads, or work hardening.

  During transportation and storage, the galvanized coils of Wugang should be kept dry and ventilated to avoid direct rain or prolonged contact with damp ground, and to prevent the formation of white rust or black spots. When unwinding, it is recommended to control the unwinding tension to avoid surface scratches. After shearing, subsequent processing or oil protection should be carried out in a timely manner to prevent rusting at the incision. In daily maintenance, if slight oxidation points are found on the surface, neutral cleaning agents can be used to wipe and apply rust proof oil; If there is extensive corrosion or coating detachment, it indicates that the batch of galvanized coils from Wuhan Iron and Steel has exceeded its service life or been stored improperly, and should be replaced in a timely manner to ensure the safety and aesthetics of the overall structure.

AfterSalesService :