Mechanical Properties
| Tensile strength (Rm) | Yield strength (Rp0.2) | Elongation (A5) | Reduction of Area (Z) | Hardness |
| ≥ 450 MPa | ≥ 205 MPa | ≥ 22% | ≥ 50% | ≤ 183 HBW |
Ferritic Stainless Steel Ground Bars
430F Stainless Steel Rod AISI 430F | UNS S43020
Machining performance becomes especially important when producing small stainless steel parts in large quantities. 430F stainless steel is a free-machining ferritic stainless steel developed from 430 stainless steel, with sulfur added to improve cutting efficiency and support smoother processing on automatic lathes and CNC equipment.
This grade is suitable for customers who need better machinability while maintaining the basic corrosion resistance and dimensional stability of ferritic stainless steel. It is commonly used for automatic lathe parts, bolts, nuts, precision hardware, and other components where efficient machining and stable surface quality are required.
Compass Power Tech manufactures 430F stainless steel precision ground rods for customers who need consistent bar quality, accurate dimensions, and practical processing performance for batch production.
Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Ni | Cr | Mo |
| 430F (S43020) | ≤ 0.12 | ≤ 1.00 | ≤ 1.25 | ≤ 0.060 | ≥ 0.15 | ≤ 0.060 | 16.00–18.00 | ≤ 0.60 |
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.
