Gnee specializes in providing quality assured Inconel 690 with full material certifications. We supply Inconel 690 plates, coils, tubes, bars, etc. All products meet ASTM standards and have a complete quality assurance system and certification. Factory price, free samples available!
Inconel 690 Manufacturer
Gnee specializes in producing a wide variety of Inconel 690 high-temperature alloy forms, offering a wide range of product shapes, including plates, bars, tubes, wire, strip, and forgings. These products comply with international standards such as ASTM B167 and ASTM B168, and are suitable for demanding manufacturing processes such as heat treatment, cold forming, machining, and welding.
Leveraging years of industry experience, Gnee’s alloy 690 products are widely used in core equipment in nuclear power generation, chemical processing, and environmental emission reduction. We are committed to providing highly flexible and customized services. Whether you require non-standard dimensions, special tolerances, specific heat treatment conditions, or unique performance requirements, our technical team can work closely with you to provide a comprehensive solution, from material selection to technical support.
| Payment method and term | Wire transfer and letter of credit |
|---|---|
| Supply Ability | Up to 800 tons per month |
| Customization | Supports custom sizes, cutting, welding, and surface treatment |
We have rich inconel 690 Shapes in stock
Gnee is a leading manufacturer and global supplier of high-performance materials. We supply custom-sized Inconel 690 plates, bars, and tubes, etc, meeting strict international quality standards. Supply full quality assurance system, and we maintain extensive inventory for quick delivery of various Inconel 690 product forms.
Basic Information Of Inconel 690 Product
The following is the product specifications of Inconel alloy 690. If you need other more information, please contact us.
Description
Inconel 690 has excellent resistance to high temperature oxidation and chloride corrosion, especially in harsh environments such as those common in chemical processing, petrochemicals and power generation. The alloy maintains its mechanical properties at temperatures up to 1100°C and does not oxidize or corrode significantly at extreme temperatures. Inconel N06690 also has good mechanical strength, toughness and weldability. Its high chromium content not only provides excellent oxidation resistance, but also gives it resistance to fluoride and high temperature water vapor corrosion.
UNS N06690 Inconel alloy 690 Product Parameters
| Property | Inconel 690 |
| Forms | Plates, Bars, Sheets, Pipes, Forged Components |
| Manufacturing Process | Hot Rolling, Cold Rolling, Forging, Welding |
| Density | 8.47 g/cm³ |
| Tensile Strength | 758 MPa (110 ksi) |
| Yield Strength | 310 MPa (45 ksi) |
| Elongation | 30% (in 50 mm gauge length) |
| Hardness | 170 HB |
| Operating Temperature | Up to 1050°C (1922°F) |
| Corrosion Resistance | Excellent resistance to oxidation and carburization |
| Applications | Heat exchangers, gas turbines, nuclear power plants |
| Service | Custom processing, Cutting, Welding, Heat Treatment |
What ASTM standards of Inconel Alloy 690 can Gnee produce?
| ASTM Standard | Description |
| ASTM B167 | Standard Specification for Inconel 690 Bars and Forgings |
| ASTM B168 | Standard Specification for Inconel 690 Plate, Sheet, and Strip |
| ASTM B517 | Standard Specification for Inconel 690 Seamless Pipe and Tube |
| ASTM B366 | Standard Specification for Inconel 690 Fittings (Elbows, Tees, etc.) |
| ASTM B625 | Standard Specification for Inconel 690 Welded Pipe |
Aolly 690 Equivalent grades
| STANDARD | UNS | EN | WERKSTOFF NR. |
| Inconel 690 | N06690 | 2.4642 | 2.4642 |
Parameter Information
Chemical Parameters
| Element | Inconel 690 |
| Nickel (Ni) | 58.0-63.0% |
| Chromium (Cr) | 27.0-31.0% |
| Iron (Fe) | Balance |
| Manganese (Mn) | 0.50% max |
| Silicon (Si) | 0.50% max |
| Copper (Cu) | 0.50% max |
| Carbon (C) | 0.05% max |
| Sulfur (S) | 0.015% max |
| Aluminum (Al) | 0.05-0.40% |
| Titanium (Ti) | 0.20-0.50% |
Mechanical Properties
| Property | Inconel 690 |
| Tensile Strength (MPa) | 620 |
| Yield Strength 0.2% Offset (MPa) | 275 |
| Elongation (% in 50mm) | 30 |
| Hardness (Rockwell B) | 90 max |
Physical Property
| Property | Inconel 690 |
| Density (g/cm³) | 8.19 |
| Melting Range (°C) | 1330-1370 |
| Specific Heat Capacity (J/kg·K) | 427 |
| Thermal Conductivity (W/m·K) | 13 |
| Electrical Resistivity (µΩ·m) | 1.11 |
Size Chart Of Inconel 690
Gnee factory offers processing services. Please contact us if you have any processing needs.
Inconel 690 Plates/Sheets Size
| Type | Thickness (mm / in) | Width (mm / in) | Length (mm / in) |
| Cold Rolled | 0.1 – 7 (0.004 – 0.28) | 1000 – 2500 (39 – 98) | ≤ 5500 (≤ 217) |
| Hot Rolled | 3 – 100 (0.12 – 3.94) | 1000 – 2500 (39 – 98) | ≤ 12000 (≤ 472) |
| Strip/Thin Plate | 0.2 – 350 (0.008 – 13.78) | 4 – 750 (0.16 – 29.5) | Coil form, inner diameter 300-600 (11.8-23.6) |
Inconel 690 Tubes/Pipes Size
| Type | Outer Diameter (mm) | Wall Thickness (mm) | Length (m) |
| Seamless/Welded | 1 – 400 | 0.2 – 20 | Single or custom (Single Random/Double Random) |
| Precision Tube | 4 – 400 | 0.5 – 10 | ≤ 12 |
Inconel 690 Bars/Rods Size
| Type | Diameter (mm / in) | Length (mm / in) |
| Round Bar/Rod | 6 – 800 (0.24 – 31.5) | 1500 – 12000 (59 – 472) |
| Flat/Hex Bar | 8 – 320 | 1500 – 6000 |
Inconel 690 Wires Size
| Type | Diameter (mm / in) | Form |
| Drawn Wire | 0.16 – 10 (0.006 – 0.39) | Coil, spool or container |
| Hot Rolled Wire | 5.5 – 19 (0.22 – 0.75) | Coil or cut lengths |
| Welding/Spring Wire | 0.5 – 12 (0.02 – 0.47) | Coil or cut lengths |
What are the features of Inconel 690?
Inconel 690 alloy offers good machinability, weldability, and excellent corrosion resistance, ensuring long-term reliability.

Excellent corrosion and high temperature resistance
Excellent comprehensive mechanical properties


Good processing and welding adaptability
Application Of Inconel 690 Products
After decades of verification, Gnee has a mature production process, and Inconel 690 has been supplied to the following industries around the world

Inconel 690 Plate/sheet
Nuclear power, chemical vessels, aerospace industries
- Nuclear reactor pressure vessel linings
- Chemical towers and tanks
- Gas turbine combustor components

inconel 690 bar/rod
General mechanical components, chemical and energy
- High-strength pump shafts and valve stems
- Nuclear fuel assemblies
- Fasteners

inconel 690 tube/pipe
Nuclear power, chemical, petroleum, and power industries
- Corrosive liquid/gas pipelines
- Chemical heat exchangers and piping
- Petroleum refining heaters

inconel 690 wire
Filtration, welding, and other special applications
- High-temperature filters
- Welding wire
- Springs
Gnee Alloys-nickel alloy Rich Grades For Sale
In addition to Inconel 690, we can also provide the following grades of nickel-based alloys
FAQ
Below are some frequently asked questions about Inconel Alloy 690. If you have any other questions, please feel free to contact us.





























































































