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High-Strength Precision Wire Rods from China Factory - Top Suppliers for Construction & Machinery Industries
Super High-Rise Building Structural Support Wire Rods
● Low-Carbon
Low-Carbon Wire Rods (Q195/Q235)
- Chemical Composition: C ≤ 0.12% (Q195) / 0.14–0.22% (Q235), Mn 0.25–0.80%
- Mechanical Properties: Yield strength ≥195–235 MPa, tensile strength 315–500 MPa, elongation ≥26–33%
- Applications: Processed via cold drawing or rib rolling into rebar and welding electrodes, widely used for concrete reinforcement in skyscrapers and bridges.
● Prestressed
SWRH82B Prestressed Wire Rods
- Element Content: C 0.80–0.85%, Mn 0.60–0.90%, Cr ≤0.25%
- Strength Metrics: Tensile strength ≥1320 MPa, yield strength ≥1180 MPa, elongation ≥8%
- Applications: Meet load-bearing and seismic resistance requirements for large-scale infrastructure projects.
Precision-Forming Industrial Base Materials
● High-Carbon
SWRH72A High-Carbon Steel Wire Rods
- Chemical Composition: C 0.70–0.75%, Si 0.15–0.35%, Mn 0.50–0.80%
- Mechanical Parameters: Tensile strength ≥1200 MPa, yield strength ≥900 MPa, reduction of area ≥40%
- Applications: Used in steel wire ropes, automotive suspension springs, and radial tire cord production.
● Cold-Heading
SAE1008 Cold-Heading Steel Wire Rods
- Element Control: C 0.06–0.10%, Mn 0.30–0.50%, P/S ≤0.030%
- Ductility Metrics: Elongation ≥30%, reduction of area ≥65%
- Processing Features: High-precision cold heading for manufacturing high-strength bolts, bearings, and hardware components, serving automotive and home appliance supply chains.
Special Alloy Wire Rods for Extreme Conditions
● Alloy
30CrMo Alloy Wire Rods
- Alloy Composition: C 0.26–0.34%, Cr 0.80–1.10%, Mo 0.15–0.25%
- High-Temperature Performance: Yield strength ≥550 MPa at 550°C, tensile strength ≥930 MPa at room temperature
- Applications: Corrosion and heat resistance for oil drilling wires, wind turbine tower anchor bolts, and aerospace fasteners.
● Galvanized
BZn18-18 Galvanized Wire Rods
- Base Material: C ≤0.08%, Cu 0.25–0.40%, Zn 18–20%
- Coating Parameters: Galfan® alloy coating (Zn-5%Al-RE), adhesion weight 200–300 g/m²
- Conductivity: Applied in power grid cables and protective fencing for outdoor environments.
Process Advantages and Material Selection Guidelines
▶ Advanced high-speed rolling and controlled cooling technologies ensure dimensional precision (±0.1 mm) and microstructural homogeneity, supporting downstream processes like drawing and heat treatment.
▶ Material selection must comply with industry standards, prioritizing carbon content, elongation, and surface defect control.
ASTM
GB/T
JIS
▶ As a global wire rod supplier, we deliver full-range solutions for steel strands, cold-headed standard parts, and special alloy wire materials, empowering clients to reduce costs and enhance efficiency. Contact us now for customized product catalogs and technical support!
Frequently Asked Questions (FAQ)
Q What is the difference between Q195 and Q235 low-carbon wire rods?
Q195 has a lower carbon content (C ≤ 0.12%) and offers greater ductility with a yield strength of ≥195 MPa, making it ideal for light-duty welding and forming applications. Q235 has a slightly higher carbon content (C 0.14–0.22%) and a yield strength of ≥235 MPa, providing better load-bearing capacity for structural reinforcement in skyscrapers and bridges.
Q What makes SWRH82B wire rods suitable for prestressed concrete applications?
SWRH82B wire rods feature an exceptionally high tensile strength of ≥1320 MPa and yield strength of ≥1180 MPa, which are essential for withstanding the sustained tension forces in prestressed concrete structures. Their controlled chromium content also enhances fatigue resistance, meeting the seismic and load-bearing requirements of large-scale infrastructure projects.
Q Which wire rod grade is best for automotive spring and tire cord production?
SWRH72A high-carbon steel wire rods are the preferred choice for these applications. With a tensile strength of ≥1200 MPa and a reduction of area of ≥40%, they offer the strength and ductility balance required for automotive suspension springs, steel wire ropes, and radial tire cord manufacturing.
Q What international standards do your wire rods comply with?
Our wire rods are manufactured in compliance with major international standards including ASTM (American Society for Testing and Materials), GB/T (Chinese National Standards), and JIS (Japanese Industrial Standards). This ensures our products meet the quality and performance requirements of global markets across various industries.
Q What are the key advantages of 30CrMo alloy wire rods for extreme environments?
30CrMo alloy wire rods combine chromium and molybdenum alloying elements to deliver outstanding high-temperature performance, maintaining a yield strength of ≥550 MPa even at 550°C. This makes them highly suitable for demanding applications such as oil drilling wires, wind turbine tower anchor bolts, and aerospace fasteners where both heat and corrosion resistance are critical.
Q Can you provide customized wire rod specifications and technical support?
Yes. As a global wire rod supplier, we offer fully customized product solutions tailored to your specific application requirements, including custom alloy compositions, dimensional tolerances, and surface treatments. Our technical team can provide detailed product catalogs, material selection guidance, and after-sales support. Please contact us or submit a free quote request to get started.