Mechanical Properties
| Tensile strength (Rm) | Yield strength (Rp) | Elongation (A) | Hardness | Impact energy (-10°C) |
| ≥ 750 MPa | ≥ 550 MPa | ≥ 25% | ≤ 270 HBW | ≥ 10 J |
Duplex Stainless Steel Ground Bars
2760 Super Duplex Stainless Steel Bar AISI 2507 | UNS S32760
Aggressive chemical and chloride-rich environments require stainless steel materials with high strength, strong corrosion resistance, and stable performance under demanding operating conditions. S32760 super duplex stainless steel offers excellent resistance to a wide range of corrosive media, including sulfuric acid, phosphoric acid, acetic acid, and other harsh industrial fluids.
With higher strength than many austenitic stainless steel grades and good plasticity, this material can support both cold working and hot working processes for components with more complex shapes. Its lower thermal expansion compared with austenitic stainless steel also makes it useful for applications where dimensional stability under temperature changes is important.
The high chromium and molybdenum content of S32760 provides strong resistance to pitting corrosion and stress corrosion cracking. Compass Power Tech manufactures S32760 super duplex stainless steel precision ground bars for chemical equipment, oil and gas components, seawater treatment systems, corrosion-resistant shafts, pump and valve parts, and other components exposed to severe corrosive environments
Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Ni | Cr | Mo | N | Cu | W |
| 32760 (S32760) | ≤ 0.030 | ≤ 1.00 | ≤ 1.00 | ≤ 0.030 | ≤ 0.010 | 6.0–8.0 | 24.0–26.0 | 3.0–4.0 | 0.20–0.30 | 0.50–1.00 | 0.50–1.00 |
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.
