Mechanical Properties
| Tensile strength (Rm) | Yield strength (Rp0.2) | Elongation (A5) | Reduction of Area (Z) | Hardness |
| ≥ 600 MPa | ≥ 205 MPa | ≥ 50% | ≥ 22% | ≤ 240 HBW |
Ferritic Stainless Steel Ground Bars
430 Stainless Steel Round Bar AISI 430 | UNS S43000
In precision transmission applications with non-extreme working conditions, 430 stainless steel provides a cost-effective balance of corrosion resistance, thermal stability, and dimensional performance. Compared with austenitic stainless steel, 430 offers higher thermal conductivity and lower thermal expansion, making it useful where heat resistance and shape stability are important.
The material also provides good resistance to thermal fatigue and can maintain stable mechanical properties around welded areas when properly processed. This makes 430 stainless steel precision ground bar suitable for mechanical parts, household appliance components, light-duty transmission parts, and other precision components used in moderate corrosive environments.
Compass Power Tech manufactures 430 stainless steel precision ground bars for customers who need reliable surface quality, accurate dimensions, and practical stainless steel performance for non-severe industrial applications.
Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Ni | Cr |
| 430 (S43000) | ≤ 0.12 | ≤ 0.75 | ≤ 1.00 | ≤ 0.040 | ≤ 0.030 | ≤ 0.60 | 16.00–18.00 |
Specifications
| Diameter | Tolerance | Roundness | Straightness | Standard Length | Surface Roughness |
| Φ3-Φ25 | 0.1mm/m | g6, h6, f7 | ≤1/2 | 2m 3m | Ra≤0.4 |
| Φ25-Φ40 | 0.1mm/m ≤ | g6, h6, f7 | ≤1/2 | 3m, 6m | Ra≤0.4 |
| Φ40-Φ80 | 0.1mm/m ≤ | g6, h6, f7 | ≤1/2 | 3m, 6m | Ra≤0.4 |
| Φ80-Φ150 | 0.05mm/m ≤ | g6, h6, f7 | ≤1/2 | 3m, 6m | Ra≤0.4 |
| Φ150-Φ180 | 0.05mm/m ≤ | g6, h6, f7 | ≤1/2 | 3m, 6m | Ra≤0.4 |
Additional Custom Services
- Cut-to-length service: Shaft length can be customized according to customer assembly requirements.
- End chamfering: Both ends of the shaft can be chamfered to simplify downstream machining and installation.
- Drawing-based machining: Shafts can be machined according to customer drawings and supplied as ready-to-assemble components.
- Surface rolling treatment: Surface rolling can be applied to improve surface hardness when higher wear resistance is required.
Packaging and Storage
To protect stainless steel precision ground shafting during sea freight and storage, Compass Power Tech uses anti-rust paper tube packaging. Before wrapping, anti-rust oil is applied evenly to the shaft surface, and anti-rust wax is applied inside the paper tube. This protection process helps reduce corrosion risk during transportation and ensures customers receive shafts in stable, ready-to-use condition.
Looking for Custom Metal Components for Your Application?
We manufacture precision ground shafts, stainless steel tubing, piston rods and aluminum alloy cylinder tubes for hydraulic, pneumatic, machinery, energy and transportation applications. Contact us for material selection, specifications and customization support.
