Precision Cold Drawn Round Steel Bars – High Dimensional Accuracy & Superior Surface Finish
Product Overview
Our cold drawn round steel bars are manufactured through an advanced cold drawing process that delivers exceptional dimensional accuracy, superior surface finish, and excellent straightness. This process not only enhances the surface quality but also significantly improves strength, hardness, and overall mechanical properties through work hardening, making them ideal for high-precision components.
Key Advantages
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Precise Dimensions: Strict diameter tolerance control (e.g., h9, h11) ensures interchangeability and easy assembly.
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Superior Surface Finish: Bright, smooth surface reduces secondary processing, ready for direct use or as base material for plating/chroming.
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Enhanced Mechanical Properties: Cold drawing process delivers higher yield strength and tensile strength for better load-bearing capacity.
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Excellent Straightness: Superior straightness ensures smooth operation and durability for high-speed rotating components like transmission shafts.
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Ready-to-Use Material: Requires minimal surface treatment upon delivery, saving production time and costs.
Technical Specifications
| Parameter | Details |
|---|---|
| Available Materials | Carbon Steel (20#, 45#, 1018, 1020), Alloy Steel (4140), Stainless Steel (303, 304, 316, 416), Chrome Plated |
| Diameter Range | 4.0 mm – 100.0 mm (Custom sizes available) |
| Standard Length | Fixed/Random lengths, or precision cut-to-length per requirement |
| Tolerance Grades | Standard tolerances (h9, h11) available, custom tighter tolerances upon request |
| Surface Finish | Bright, Ground, Chrome Plated |
Typical Applications
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Precision Shafts: Transmission shafts, motor shafts, spindles, lead screws
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Hydraulic Components: Piston rods, cylinder barrels
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Automotive Parts: Axles, steering components, engine parts
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Industrial Components: Guide rods, bushings, rollers, ejector pins
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Fasteners & Tools: High-strength bolts, precision pins, tool holders
Quality Assurance
All our cold drawn round bars undergo strict quality control, including dimensional verification, surface inspection, and mechanical property testing to ensure consistent performance and reliability.
Customization Services
We provide comprehensive customization including special sizes, tolerances, materials, and surface treatments to meet your specific application requirements.
