Galvanized steel wire can be divided into many types according to different classification standards. The following is a common classification method:
1. Classification by galvanizing process
Hot-dip galvanized steel wire
Features: The steel wire is immersed in molten zinc liquid to form a thicker galvanized layer. Usually the thickness of the zinc layer can reach more than 50μm. It has excellent corrosion resistance and long service life.
Application: Suitable for outdoor, humid, and highly corrosive environments, such as buildings, bridges, electricity, agricultural fences, etc.
Electro-galvanized steel wire
Features: The zinc layer is deposited on the surface of the steel wire through an electrolytic process. The zinc layer is thin (usually 5-25μm) and the corrosion resistance is relatively weak, but the appearance is smooth and the cost is low.
Application: Suitable for indoor, dry or mildly corrosive environments, such as furniture, decoration, electronic products, etc.
Mechanical galvanized steel wire
Features: Zinc powder is attached to the surface of the steel wire by physical methods to form a galvanized layer. The thickness and corrosion resistance of the zinc layer are between hot-dip galvanizing and electro-galvanizing.
Application: Suitable for scenes with medium corrosion resistance requirements and cost sensitivity.
2. Classification by material
Low carbon steel galvanized wire
Features: low carbon content (usually ≤0.25%), good flexibility, easy processing, moderate strength.
Application: widely used in construction, agriculture, daily necessities and other fields.
Medium and high carbon steel galvanized wire
Features: high carbon content (0.25%-0.6%), high strength and hardness, but relatively low toughness.
Application: suitable for scenes requiring high strength, such as prestressed concrete, bridge cables, etc.
Alloy steel galvanized wire
Features: alloy elements (such as chromium, nickel, molybdenum, etc.) are added to the steel wire to improve strength, wear resistance and corrosion resistance.
Application: used in special environments such as marine engineering, chemical equipment, etc.
3. Classification by use
Galvanized steel wire for construction
Features: strength and corrosion resistance meet construction requirements, usually low carbon steel galvanized wire.
Application: used for steel bar binding, concrete reinforcement, building fences, etc.
Galvanized steel wire for agriculture
Features: good flexibility, strong corrosion resistance, suitable for outdoor environment.
Application: used for grape racks, greenhouses, livestock fences, etc.
Galvanized steel wire for industry
Features: select materials and galvanizing process according to specific needs, with high strength and corrosion resistance requirements.
Application: used for cable armor, wire rope, spring, filter screen, etc.
Galvanized steel wire for decoration
Features: smooth appearance, uniform color, corrosion resistance meets decoration requirements.
Application: used for furniture, lamps, crafts, etc.
4. Classification by surface state
Glossy galvanized steel wire
Features: smooth surface, no additional treatment.
Application: suitable for scenes requiring smooth surface, such as weaving, decoration, etc.
Scratched galvanized steel wire
Features: the surface is scratched or embossed to increase friction.
Application: used in scenes requiring anti-slip, such as stair handrails, road guardrails, etc.
Plastic coated galvanized steel wire
Features: A layer of plastic (such as PVC) is coated on the outside of the galvanized layer to further improve corrosion resistance and insulation.
Application: Used for cables, communication cables, etc.
5. Classification by specification
Classification by diameter
The diameter range is usually 0.2mm-8mm, and steel wires of different diameters are suitable for different scenarios. For example, fine steel wire is used for weaving, and thick steel wire is used for building reinforcement.
Classification by strength grade
According to the tensile strength grade, such as 1570MPa, 1670MPa, 1770MPa, etc., it is suitable for scenarios with different strength requirements.
6. Special type galvanized steel wire
Stainless steel galvanized steel wire
Features: Galvanized on the basis of stainless steel, it has both the corrosion resistance of stainless steel and the protective effect of the galvanized layer.
Application: Used in highly corrosive environments, such as marine engineering, chemical equipment, etc.
Aluminum-zinc alloy coated steel wire
Features: The coating is aluminum-zinc alloy, and the corrosion resistance is better than pure zinc coating.
Application: Used in scenes exposed to harsh environments for a long time, such as outdoor billboards, power towers, etc.