Why Electric Power Industry Uses Inconel 718
| Core Advantage | Industry Application Reason |
|---|---|
| Superior High Temperature Stability | Resist long-term high temperature heat load inside power generation equipment |
| Excellent Thermal Fatigue Resistance | Adapt to temperature alternation caused by equipment start and stop |
| High Pressure Bearing Capacity | Fit high-pressure pipeline and pressure component operation demand |
| High Temperature Oxidation Resistance | Avoid component aging failure caused by high-temperature oxidation |
| Reliable Welding Performance | Convenient for on-site installation, maintenance and pipeline connection |
| Low Failure Rate | Reduce power equipment downtime and maintenance cost |
Applicable Working Conditions
| Application Field | Actual Working Condition |
|---|---|
| Thermal Power Generation Equipment | High temperature flue gas environment, high pressure steam circulation system |
| Nuclear Power Auxiliary Components | High temperature, radiation resistant and closed stable operation environment |
| Power Station Heat Exchanger | Long-term heat exchange, temperature difference alternating working condition |
| High-temperature Steam Pipeline | High pressure steam transmission, continuous high temperature operation |
| Power Generation Turbine Parts | High-speed operation, high load and strong vibration environment |
| New Energy Power Supporting Parts | High temperature resistance and stable structural supporting environment |
Core User Demands in Power Industry
| User Demand | Specific Requirement |
|---|---|
| Long-term Stable Operation | Ensure uninterrupted safe operation of power station equipment |
| High Safety Factor | Strict material inspection to meet power industry safety codes |
| Unified Batch Performance | Consistent quality for large-scale power project matching |
| Standard & Non-standard Customization | Match old equipment replacement and new project design size |
| Complete Technical Documents | Provide full set of test reports for project review and bidding |
| Stable Delivery Cycle | Meet power equipment construction and maintenance construction schedule |
Common Matching Products for Power Industry
| Product Category | Main Usage |
|---|---|
| Inconel 718 Seamless Tube | Power station high-pressure steam pipeline, heat exchange tube |
| Inconel 718 Alloy Bar | Turbine shaft core parts, high-strength power fasteners |
| Inconel 718 Steel Plate | Power equipment high-temperature resistant shell, liner plate |
| Inconel 718 Pipe Fittings | Power pipeline elbow, tee, flange and connecting accessories |
| Inconel 718 Forgings | High-temperature valve body, power pump body core components |
Basic Information
| Item | Details |
|---|---|
| Material Grade | Inconel 718, UNS N07718, W.Nr. 2.4668 |
| Executive Standards | ASTM B637, ASTM B622, ASTM B670, ASME SB-637 |
| Common Delivery State | Solution annealing, aging heat treatment |
Dimensional Tolerance
| Specification | Tolerance Standard |
|---|---|
| Outer Diameter | Comply with ASTM standard industrial tolerance |
| Wall Thickness | Strict tolerance control for pressure-bearing parts |
| Product Length | Custom fixed length and random length available |
| Straightness & Roundness | Meet power equipment precision assembly requirements |
| Surface Treatment | Pickled, polished, blackened optional |
Mechanical Properties
| Performance Index | Standard Minimum Value |
|---|---|
| Tensile Strength | ≥1275 MPa |
| 0.2% Yield Strength | ≥1035 MPa |
| Elongation | ≥12% |
| Hardness | ≤44 HRC |
| Working Temperature Range | -50℃ ~ 650℃ |