2205/2507 Duplex Stainless Steel Parallel Key
2205/2507 duplex stainless steel parallel key is a high-performance mechanical transmission component designed for reliable torque transfer, shaft positioning, and corrosion-resistant applications. The 2205/2507 duplex stainless steel parallel key is manufactured from duplex stainless steel, combining high mechanical strength with excellent resistance to corrosion, pitting, and stress corrosion cracking.
The 2205/2507 duplex stainless steel parallel key features a standard rectangular key profile that fits accurately into shaft and hub keyways, preventing relative rotation between connected components. It is widely used in marine equipment, chemical processing systems, offshore machinery, pumps, valves, and heavy-duty industrial applications where conventional stainless steel materials may not provide sufficient performance.
Product Overview
The 2205/2507 duplex stainless steel parallel key is engineered for demanding mechanical transmission systems requiring both high strength and superior corrosion resistance. Its rectangular structure provides stable torque transfer between shafts and rotating components such as gears, couplings, pulleys, and impellers.
Compared with standard stainless steel keys, the 2205/2507 duplex stainless steel parallel key offers higher strength and improved resistance against chloride environments, seawater exposure, and chemical media. This makes it suitable for harsh industrial conditions where reliability and service life are critical.
As a specialized industrial mechanical component, it is widely selected by OEM manufacturers, engineering contractors, and equipment suppliers for high-performance shaft connection applications.
Product Specifications
| Item | Description |
|---|---|
| Product Name | 2205/2507 Duplex Stainless Steel Parallel Key |
| Material | 2205 Duplex Stainless Steel / 2507 Super Duplex Stainless Steel |
| Key Type | Standard Parallel Key |
| Shape | Rectangular Key |
| End Type | Standard Square Ends |
| Width Range | 2mm–50mm |
| Height Range | 2mm–30mm |
| Length Range | Customized According to Requirement |
| Surface Finish | Natural Stainless Steel / Polished |
| Installation Type | Shaft and Hub Keyway Fit |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, length, material available |
Technical Parameters
| Parameter | 2205 Duplex Stainless Steel | 2507 Super Duplex Stainless Steel |
|---|---|---|
| Tensile Strength | Approx. 620 MPa | Approx. 800 MPa |
| Yield Strength | Approx. 450 MPa | Approx. 550 MPa |
| Hardness | ≤ HRC 31 | ≤ HRC 32 |
| Density | Approx. 7.8 g/cm³ | Approx. 7.8 g/cm³ |
| Corrosion Resistance | Excellent | Superior |
| Pitting Resistance | High | Very High |
| Stress Corrosion Resistance | Excellent | Excellent |
| Material Structure | Austenitic-Ferritic Duplex |
Materials and Manufacturing Process
The 2205/2507 duplex stainless steel parallel key is manufactured through precision machining processes to achieve accurate dimensions, excellent surface quality, and reliable mechanical performance.
- Raw material selection: Certified duplex stainless steel bar stock
- Cutting: Precision cutting according to required dimensions
- Milling machining: Formation of rectangular key profile
- Grinding: Improves dimensional accuracy and surface finish
- Deburring: Removes sharp edges for safe assembly
- Surface finishing: Natural duplex stainless steel finish or polishing
- Inspection: Dimensional, material, and surface quality testing
- Packaging: Protective industrial packaging for transportation
Each 2205/2507 duplex stainless steel parallel key is produced under strict quality control to ensure stable performance in demanding environments.
Applications of the Product
The 2205/2507 duplex stainless steel parallel key is widely used across industries requiring corrosion resistance and high strength:
- Marine equipment: Seawater-resistant shaft connections
- Offshore systems: High-strength mechanical transmission components
- Chemical processing equipment: Corrosive environment applications
- Oil and gas industry: Pumps, valves, and rotating equipment
- Desalination systems: Chloride-resistant machinery components
- Industrial pumps: Impeller and shaft connections
- Heavy machinery: High-load transmission systems
- Energy equipment: Durable mechanical assemblies
Its duplex stainless steel construction makes it ideal for harsh environments involving chemicals, saltwater, and high mechanical loads.
Why Choose This Product
- High strength compared with conventional stainless steel keys
- Excellent resistance to chloride corrosion
- Superior pitting and crevice corrosion resistance
- Reliable torque transmission performance
- Stable dimensional accuracy
- Suitable for heavy-duty applications
- Long service life in harsh environments
- Available in 2205 and 2507 grades
- OEM customization support
The 2205/2507 duplex stainless steel parallel key provides a reliable solution for critical mechanical transmission systems.
Why Choose Flybear
Flybear is a professional manufacturer specializing in precision industrial fasteners and customized mechanical components.
- Advanced CNC machining capability
- Duplex stainless steel processing experience
- OEM/ODM customization support
- Stable production capacity for industrial orders
- Strict quality inspection procedures
- Global export experience
- Engineering support for special applications
Flybear provides reliable mechanical components for machinery manufacturers, distributors, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout the manufacturing process:
- Raw material chemical composition analysis
- Material certificate verification
- Dimensional accuracy inspection
- Width, height, and length measurement
- Surface finish inspection
- Hardness testing
- Corrosion resistance verification
- Packaging quality inspection
All production processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a 2205/2507 duplex stainless steel parallel key, consider:
- Required torque transmission capacity
- Shaft and hub keyway dimensions
- Corrosion environment conditions
- Material compatibility requirements
- Mechanical load and operating conditions
- Required service life
Correct material selection ensures reliable performance in demanding applications.
FAQ
1. What is a duplex stainless steel parallel key used for?
It is used for torque transmission and positioning between shafts and hubs in mechanical systems.
2. What is the difference between 2205 and 2507 stainless steel?
2507 offers higher strength and better corrosion resistance than 2205 for more severe environments.
3. Are duplex stainless steel keys suitable for marine applications?
Yes, they provide excellent resistance to seawater and chloride corrosion.
4. Can custom duplex stainless steel keys be produced?
Yes, Flybear supports customized sizes, lengths, and material grades.
5. Which industries use duplex stainless steel keys?
They are widely used in offshore, chemical, marine, oil and gas, and heavy industrial equipment.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.
