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Overview of Galvanized Iron (GI): Specifications, Material, and Applications
Time：
Mar 28,2023
GI (Galvanized Iron) are two popular types of steel used in a wide range of applications. Here are the key applications and advantages of each:
- GI (Galvanized Iron):
- Applications: GI is commonly used in construction, automotive, and household appliances. It is used for making pipes, roofing sheets, and various metal structures.
- Advantages: GI is highly resistant to corrosion and rust due to the zinc coating on its surface. It has high strength and durability, which makes it suitable for heavy-duty applications. GI is also easy to weld and form, which makes it a popular choice for fabrication.
product information for GI (Galvanized Iron):
- Specifications:
- Thickness: 0.12mm-4.0mm
- Width: 600mm-1500mm
- Length: As per customer's requirement
- Coil weight: 3-8MT
- Material:
- The base material is typically hot-dipped galvanized steel coil or cold-rolled steel coil.
- The steel is usually made of carbon steel, with a maximum carbon content of 0.15%.
- Zinc coating:
- The zinc coating thickness can vary from 30g/m2 to 275g/m2, depending on the application.
- The coating is applied using a hot-dip galvanizing process, which involves immersing the steel coil in a bath of molten zinc.
- Chemical composition:
- Carbon (C): 0.06-0.15%
- Manganese (Mn): 0.30-0.60%
- Silicon (Si): 0.025-0.050%
- Phosphorus (P): 0.020%
- Sulfur (S): 0.020%
- Mechanical properties:
- Yield strength: 280-320 MPa
- Tensile strength: 340-390 MPa
- Elongation: 20-28%
- Hardness: HRB 50-70
- Service life:
- The service life of GI depends on the thickness of the zinc coating and the environment in which it is used.
- Typically, GI can last for 20-30 years in normal atmospheric conditions.
- Applications:
- GI is widely used in construction, automotive, and household appliances.
- It is used for making pipes, roofing sheets, and various metal structures.
- It is also used for fencing, electric towers, and other outdoor applications where corrosion resistance is required.
In summary, GI is a type of steel with a zinc coating that provides excellent corrosion resistance. It is made from carbon steel and is available in various specifications. GI has good mechanical properties and a service life of 20-30 years. It is widely used in construction, automotive, and household appliances for various applications that require corrosion resistance.
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