1.What is Galvanized Round Bar?
The surface of the round bar is evenly covered with a layer of metallic zinc through hot-dip galvanizing or electro-galvanizing.
Hot-dip galvanizing: The cleaned round bar is immersed in molten zinc liquid to form a thicker, more strongly bonded, and corrosion-resistant zinc-iron alloy layer and pure zinc layer. This is the most commonly used method.
Electro-galvanizing: A thinner, more uniform, and brighter zinc layer is deposited on the surface of the round bar by passing an electric current through an electrolyte. The corrosion resistance is usually not as good as hot-dip galvanizing, but the appearance is better and the dimensional accuracy is higher.
2.What are the main characteristics of galvanized round bars?
Strong corrosion resistance: The zinc layer on the surface can effectively prevent the steel from being oxidized, corroded and eroded by water, etc., greatly improving the service life of the steel. Under normal circumstances, the service life of hot-dip galvanized round steel is 15-30 times that of ungalvanized ordinary round steel.
Beautiful appearance: The surface of the galvanized round bar presents a silver-gray metallic luster, which has good decorative properties and can meet some application scenarios that require appearance.
Good processing performance: Galvanized round bars can be processed by cutting, bending, stamping, welding and other processing methods, which can meet the production requirements of different projects and products.
Good conductivity: The zinc layer has a certain conductivity. When used in the fields of electricity, lightning protection, etc., it can play a good conductive role and ensure the safe operation of the system.
3.What are the common specifications and materials of galvanized round bars?
Specifications: The specifications of round steel are expressed in diameter, in millimeters (mm). The common specification range is generally between 8mm-400mm. Different manufacturers may have different specification ranges.
Material: Common materials include Q235, Q345, 45# steel, 20CrMnTi, GCr15, etc. Galvanized round bars of different materials have differences in strength, hardness, toughness, etc., which can be selected according to specific usage requirements.
4.What are the common applications of galvanized round bars?
Construction field: used to make building structural materials, such as steel columns and steel beams, and can also be used for building decoration railings, handrails and curtain wall keels. Its coating has good corrosion resistance, which can keep the building beautiful and stable for a long time. In addition, it is also widely used in lightning protection grounding systems, such as lightning protection belts and down conductors.
Transportation field: can be used to manufacture bridges, highway guardrails, street light poles, tunnel fire doors, etc., which can effectively resist the harsh climate and chemical corrosion in the environment, and ensure the service life and safety of transportation facilities.
Mechanical field: often used to manufacture parts of mechanical equipment, such as shafts, rods, bolts and nuts of machine tools, mining machinery, agricultural machinery, etc. Its excellent corrosion resistance and high strength can improve the durability and stability of mechanical equipment.
Power field: used to manufacture cable bridges, transmission line towers, power equipment racks, etc. Its coating has good conductivity and corrosion resistance, which can ensure the long-term use and safety of power equipment.
Automobile manufacturing field: It can be used in automobile suspension systems, drive shafts, frames and other components, which need to have high strength and toughness to meet various mechanical requirements of the car during driving.
5.What factors affect the price of galvanized round bars?
Material: The price of galvanized round bars of different materials varies greatly. For example, the price of ordinary carbon steel is relatively low, while the price of alloy steel, stainless steel and other materials is higher.
Specifications: Generally speaking, the price of galvanized round bars with larger diameters and longer lengths is relatively high because their production process and cost are relatively high.
Galvanizing method: The price of hot-dip galvanized round bars is usually slightly higher than that of electro-galvanized round bars, because the process cost of hot-dip galvanizing and the thickness of the zinc layer lead to a higher comprehensive cost.
Market supply and demand relationship: When market demand is greater than supply, prices may rise; conversely, when supply is greater than demand, prices may fall.