INCONEL 617
Inconel 617
Inconel 617 is a nickel-chromium-cobalt-molybdenum alloy with excellent high-temperature strength, oxidation, and corrosion resistance. It is easily formed and welded.
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Material Specification
Possible Alternative Grades
| Grade | Specification | Remarks |
|---|---|---|
| INCONEL 625 | UNS N06625, W.Nr. 2.4856 | High strength and corrosion resistance. |
| INCONEL 718 | UNS N07718, W.Nr. 2.4668 | Precipitation-hardenable with high strength. |
| Hastelloy X | UNS N06002, W.Nr. 2.4665 | Excellent oxidation resistance at high temperatures. |
| Haynes 230 | UNS N06230, W.Nr. 2.4733 | Superior thermal stability and oxidation resistance. |
| Alloy 601 | UNS N06601, W.Nr. 2.4851 | Oxidation-resistant with good high-temperature strength. |
Inventory
| Product Form | Size Range From | Size Range To |
|---|---|---|
| Alloy 617 Pipe | 0.5 in | 8 in |
| Alloy 617 Tube | 6 mm | 260 mm |
| Alloy 617 Pipe Fittings | 0.5 in | 8 in |
| Alloy 617 Flanges | 0.5 in | 12 in |
| Alloy 617 Sheet/Plate | 1 mm | 100 mm |
| Alloy 617 Bar/Rod | 10 mm | 300 mm |
| Alloy 617 Wire | 0.5 mm | 10 mm |
Technical Data Sheet
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.15 |
| Nickel (Ni) | Remainder | — |
| Iron (Fe) | — | 3.0 |
| Silicon (Si) | — | 1.0 |
| Manganese (Mn) | — | 1.0 |
| Cobalt (Co) | 10.0 | 15.0 |
| Chromium (Cr) | 20.0 | 24.0 |
| Titanium (Ti) | — | 0.6 |
| Phosphorus (P) | — | 0.015 |
| Sulfur (S) | — | 0.015 |
| Molybdenum (Mo) | 8.0 | 10.0 |
| Aluminum (Al) | 0.8 | 1.5 |
| Boron (B) | — | 0.006 |
| Copper (Cu) | — | 0.5 |
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | ≥ 485 MPa | ≥ 70,300 psi |
| Yield Strength | ≥ 275 MPa | ≥ 39,900 psi |
| Elongation at Break | ≥ 25% | ≥ 25% |
| Hardness (Brinell) | 170 | 170 |
Mechanical Properties at Room Temperature (Annealed, Typical)
| Property | Metric | Imperial |
|---|---|---|
| Ultimate Tensile Strength | ≥ 655 MPa | ≥ 95 KSI |
| Yield Strength | ≥ 241 MPa | ≥ 35 KSI |
| Elongation | ≥ 30% | ≥ 30% |
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.3 g/cm³ | 0.302 lb/in³ |
| Melting Point | 1363°C | 2485°F |
| Coefficient of Thermal Expansion | 11.6–16.3 µm/m°C | – |
| Thermal Conductivity | 11.524–24.682 kcal/(hr·m·°C) | – |
| Modulus of Elasticity | 211–129 GPa | – |
Corrosion Resistance
Alloy 617 is engineered with a high concentration of nickel, chromium, and aluminum, providing exceptional resistance to oxidation and carburization even under high-temperature conditions. These elements, coupled with molybdenum, allow the alloy to endure both extreme heat and wet, corrosive environments effectively.
The alloy’s superior resistance to oxidation is attributed to its ability to form a protective chromium oxide layer, which prevents spalling and offers long-lasting protection. Its exceptional resistance to carburization further highlights its reliability in maintaining performance under challenging conditions, as demonstrated in gas-carburization tests at 1800°F. Alloy 617 consistently outperforms alloys of similar strength in high-temperature environments, making it an ideal choice for demanding applications.
Thermal Properties
High-Temperature Strength
- Alloy 617 retains its mechanical integrity at temperatures exceeding 1000°C (1832°F), making it suitable for use in gas turbines, heat exchangers, and other high-temperature systems.
Thermal Conductivity
- The alloy exhibits moderate thermal conductivity, ensuring effective heat transfer in critical components while maintaining stability.
Resistance to Thermal Fatigue
- The excellent thermal fatigue resistance of Alloy 617 prevents cracking and degradation in cyclic heating and cooling environments.
Low Thermal Expansion
- The alloy’s controlled thermal expansion minimizes dimensional changes under varying temperatures, enhancing its reliability in precision applications.
Fabrication and Welding Information
Welding
Alloy 617 is highly weldable using common welding methods, such as TIG (Tungsten Inert Gas), MIG (Metal Inert Gas), and manual welding processes. Proper preparation and control of heat input are recommended to ensure optimal weld quality.
Machining is carried out with conventional techniques, often used for iron-based alloys. High-speed operations like grinding, milling, and turning are performed effectively with water-based coolants, while general machining can use commercial coolants to maintain precision and minimize thermal effects.
These properties make Alloy 617 an ideal material for applications requiring high strength, thermal resistance, and excellent corrosion resistance.
Heat Treatment
Normally used in the solution-annealed condition to achieve a coarse grain structure for optimal creep-rupture strength and ductility at room temperature.
Solution annealing is conducted at 2150°F (1175°C), followed by rapid air cooling or water quenching to stabilize the alloy’s structure.
Applications
Customized Package
Oil-Coated Paper
Thick Woven Plastic Bag
Air Cushion Film + Wooden Case
At Alloyxpert
- Sheets and plates are wrapped in oil-coated paper for corrosion protection, placed on wooden pallets, and strapped securely to prevent shifting during transport.
- Bars and rods are bundled together using thick woven plastic bags and carefully packed, ensuring each bundle weighs no more than 1500 KG for safe handling.
- Tubes and pipes are packed in air cushion film to protect them from dirt and scratches. For added protection, they are placed in wooden cases to prevent damage during transit.
Logistics
By Sea
By Air
By Land
Alloyxpert provides three transportation options: sea, land, and air. Sea transportation is the most commonly chosen method for most orders and is therefore regarded as the default transportation mode. Quotations are typically based on terms such as FOB, CFR, or CIF. For urgent requirements, we also offer air transportation, while land transportation is available for specific regional needs.
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