Premium Quality Round Bars with Tight Tolerance ±0.05mm
YaDa Metal is a leading manufacturer of high-precision cold drawn steel round bars. Using advanced cold drawing technology and rigorous quality control, we produce round bars with excellent dimensional accuracy, superior surface finish, and outstanding mechanical properties.
Our cold drawn round bars are widely used in automotive, machinery, hydraulic cylinders, construction, and precision engineering industries worldwide.
Key Features
- Tight Dimensional Tolerance — ±0.05mm (high-precision grade)
- Excellent Surface Finish — Bright and smooth (Ra 0.4–1.6μm)
- Superior Straightness — ≤ 0.5mm/m
- Enhanced Mechanical Properties — Higher tensile strength and better machinability
- Wide Size Range — Diameter from 4mm to 400mm
- Custom Lengths Available — Standard 3–6 meters or cut to your exact requirements
- Full Customization — Special diameters and lengths made to order
Specifications
| Parameter | Details |
|---|---|
| Shape | Round Bar |
| Size Range | Diameter 4mm – 400mm |
| Tolerance | ±0.05mm |
| Length | 3m – 6m (standard), custom lengths available |
| Surface Finish | Bright / Polished |
| Straightness | ≤ 0.5mm/m |
| Standards | GB, ASTM A108, JIS |
| Materials | 1018, 1020, 1045, CK45, 4140, SCM440, 304, 316, 17-4PH |
Material Options & Applications
| Material | Key Features | Common Applications |
|---|---|---|
| 1018 / 1020 | Good weldability, easy machining | General machinery, structural shafts |
| 1045 / CK45 | High strength, excellent machinability | Shafts, gears, hydraulic cylinder rods |
| 4140 / SCM440 | High strength & wear resistance | Automotive parts, heavy machinery, excavator components |
| 304 / 316 | Excellent corrosion resistance | Food machinery, chemical equipment, marine |
| 17-4PH | High strength + corrosion resistance | Aerospace, medical, and high-end machinery |
Applications
Our cold drawn round bars are ideal for:
- Hydraulic and pneumatic cylinder rods
- Automotive and motorcycle shafts
- Machinery spindles and precision components
- Construction and engineering equipment
- Agricultural machinery parts
- Industrial automation and tooling
Why Choose YaDa Cold Drawn Round Bars
- Factory Direct — Competitive pricing with stable supply
- Strict Quality Control — 100% inspection before shipment
- Customization Capability — Special diameters and lengths available
- Fast Delivery — Standard sizes in stock, custom orders within 15–25 days
- Professional Support — Experienced technical team ready to assist
Get Your Custom Quote Today
We offer free samples for qualified bulk orders. Contact us now for the best price and fast delivery!
Email: [email protected]
Tel: +86 13920216030
