Quality carbon steel wire rod, full specifications, bright surface.

Carbon steel round wire rod is a long steel product with a circular cross-section, manufactured through hot-rolling or cold-drawing processes, using carbon as the primary alloying element. Its carbon content typically ranges from 0.05% to 1.5%, and it is classified into low-carbon, medium-carbon, and high-carbon steel based on carbon percentage.

Model number：	Q195、Q215、Q235
Diameter:	Φ5.5mm—Φ20mm
Standards：	GB/T 701-2008, GB/T 14981-2009, ASTM A510、JIS G3505
Packaging:	Customized according to customer requirements

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Low-carbon steel offers good plasticity and weldability, making it suitable for wire, nails, and general structural components. Medium-carbon steel provides higher strength and is commonly used in machinery parts and bolts. High-carbon steel exhibits excellent hardness and wear resistance, widely applied in springs, cutting tools, and bearings.Rust prevention is essential during usage, with additional anti-corrosion treatments like galvanizing or plastic coating applied as needed. Quality depends on composition control, rolling precision, and surface finish, adhering to international standards such as GB/T and ASTM.

Product Details

Application fields：

1. Construction industry: Reinforced mesh, prestressed concrete components 2. Industrial manufacturing: Springs, steel wire ropes, welding wire raw materials 3. Daily necessities: Nails, hardware components, bicycle spokes 4. Automotive industry: Suspension springs, seat frames

Production Process：

1. Raw material preparation: Scrap steel/molten iron → converter/electric furnace smelting 2. Continuous casting: Molten steel → billets/blooms (120×120mm-150×150mm) 3. Rolling process: Reheating furnace → roughing mill → intermediate mill → finishing mill → laying head 4. Controlled cooling: Stelmor air cooling line for microstructure control 5. Collection & packaging: Bundling, weighing, labeling, and storage

Product Characteristics：

• Excellent plastic processing performance, suitable for drawing and bending • High cost-effectiveness with wide raw material sources • Adjustable mechanical properties through heat treatment • Uniform specifications facilitate automated processing

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FAQ

Q: What is carbon steel wire rod coil?

A:Carbon steel wire rod coil is a round cross-section steel product with carbon as the main alloying element, hot-rolled and coiled into spiral form, serving as a key raw material for the metal products industry.
Q: How to distinguish low, medium, and high carbon steel?

A:Classified by carbon content: low carbon (C≤0.25%), medium carbon (0.25%＜C≤0.60%), high carbon (C＞0.60%). Higher carbon content increases strength and hardness but reduces plasticity.
Q:What are the common specifications?

A: Diameters of 6.5mm and 8mm are most common. Coil weight typically 1-2 tons with standard inner diameter of 810mm.
Q: What is the "Stelmor controlled cooling line"? Why is it important?

A: The Stelmor line is a dedicated production line for the controlled cooling of wire rod after rolling. By precisely controlling the cooling rate and temperature, it optimizes the internal metallic microstructure of the wire rod (e.g., grain size). This directly determines its mechanical properties (e.g., strength, plasticity) and subsequent processing performance, making it a key technology for producing high-quality wire rod.
Q: What technical standards apply?

A:Domestic production follows GB/T 701 (low carbon) and GB/T 4354 (high carbon). Export products often comply with ASTM A510 or JIS G3505 standards.
A: It depends on the rust level. Light surface rust (yellow rust) is not harmful and can even improve the bond with concrete; it can be used normally. However, if there is heavy scaling or pitting corrosion that reduces the cross-sectional area, it compromises load-bearing capacity and should not be used.
Q: What are the main applications?

A: Widely used for manufacturing steel wires, nails, springs, wire ropes, welding wires, and various hardware components. Essential base material for construction, machinery, and automotive industries.

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Quality carbon steel wire rod, full specifications, bright surface.

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