SAE1045 hot-rolled galvanized wire is a structural steel wire product made of medium carbon steel as the base material, which is made by hot rolling and then galvanizing the surface. Its core structure is a steel core with a carbon content of about 0.45%. This product is widely used in machinery manufacturing, building structures, automotive parts, agricultural equipment, and other fields, and is suitable for environments with high strength, long life, and medium processing requirements.

Feature

High strength bearing capacity
Thanks to the carbon content (about 0.45%) and the grain refinement effect brought by hot rolling, SAE1045 hot-rolled galvanized wire can maintain structural stability when facing tensile and shear loads, with a tensile strength of about 594 MPa and a yield strength of about 554 MPa. It is not easy to deform or break, and is particularly suitable for high-strength load-bearing structural parts such as shafts and pins.

Excellent corrosion resistance
Zinc can form a stable oxide film with oxygen in the air, and has a "sacrificial anode" effect, which can effectively prevent corrosion of the substrate, so that the corrosion resistance of SAE1045 hot-rolled galvanized wire can reach 20-50 years.

Strong processing adaptability
Hot rolling improves the metal structure of the material, making its internal structure denser, which is conducive to improving the stability of subsequent processing. SAE1045 steel has good machinability and medium welding performance and is suitable for various processes such as drawing, stamping, turning, bending, etc.

Excellent heat treatment performance
The SAE1045 hot-rolled galvanized wire can be subjected to a variety of heat treatment methods, such as annealing, normalizing, quenching, and tempering, and its hardness and toughness can be flexibly adjusted according to the conditions of use. After quenching, its surface hardness can be increased to 45-50 HRC, which significantly improves wear resistance and is suitable for use in high-friction environments; after proper tempering treatment, it can reduce brittleness and improve impact toughness.

Key Process

Stage	Parameter	Standard Range
Hot Rolling	Rolling temperature	950-1100°C (final pass)
Pickling	Acid concentration	10-20% HCl, 15-30 min
Galvanizing	Zinc bath temperature	445-465°C
	Dipping time	30-60 seconds
Coating	Zinc adhesion test	4-layer wrap (no peeling)

Common Sizes

Category	Diameter (mm)
Light Gauge	1.0 - 2.5
Medium Gauge	2.5 - 6.0
Heavy Gauge	6.0 - 10.0
Custom Sizes	0.8 - 20.0

Wire diameter table

product-554-632

Application

Industry	Specific Applications
Construction	- Rebar tying - Scaffolding safety nets
Hardware & Machinery	- High-strength fasteners - Springs
Agriculture	- Livestock fencing - Vineyard trellises
Power & Telecom	- Cable armoring - Overhead ground wires
Transportation	- Container lashing - Truck cargo nets
Industrial	- Filter screens - Metal crafts

Packaging

Package Type	Weight Range
Small Coils	50-200 kg
Large Coils	500-2000 kg
Straight Bars	1-5 tons

product-553-415

FAQ

Q: What is 45# Hot Rolled Galvanized Wire?

A: A medium-carbon steel wire (C: 0.42-0.50%) with hot-dip zinc coating, offering high strength + corrosion resistance.

Q: How does it compare to other steel wires?

Type	Carbon Content	Coating	Best For
45# Galvanized	0.42-0.50%	Hot-dip zinc	General outdoor use
Q235 Galvanized	0.12-0.20%	Hot-dip zinc	Light-duty applications
Stainless Steel	Varies	None	Marine/high-corrosion