Browse Our Collection
Get instant quotes that fit your budget perfectly.
Nial Sheets and Plates is a reputable manufacturer and supplier of Inconel 690 Circles based in Houston, USA. They specialize in crafting precision-engineered components designed to thrive in extreme conditions where high temperatures and aggressive corrosion are the norm. Inconel 690 is a high-chromium nickel alloy celebrated for its outstanding resistance to oxidizing chemicals and hot corrosive gases, making it a go-to choice for applications in nuclear, chemical, and heat processing industries. Nial offers Inconel 690 Circles in a variety of diameters and thicknesses, all produced to meet stringent tolerances and industry standards.
These Inconel 690 Circles typically consist of about 58–63% nickel, 27–31% chromium, and 7–9% iron, along with small amounts of silicon, manganese, and carbon. The high chromium content provides exceptional resistance to high-temperature oxidation and sulfur attacks. They boast a tensile strength ranging from 414 to 690 MPa, along with excellent metallurgical stability and impressive mechanical properties even at elevated temperatures up to 1000°C. Additionally, Inconel 690 is known for its excellent weldability and its ability to resist stress corrosion cracking in environments containing chlorides.
| Specifications | ASTM B564, B446, B637 / ASME SB564, SB446, SB637 |
|---|---|
| Standard | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| UNS | Werkstoff Nr. |
| N06690 | 2.4642 |
| Ni | Cr | Fe | Cu | Mn | Si | C | S |
| 58.0 min | 27.00 – 31.00 | 7.00 – 11.00 | 0.50 max | .50 max | 0.50 max | 0.05 max | 0.01 max |
| Density | 8.19 g/cm3 |
| Melting Point | 1343-1377 °C (2450-2510 °F) |
| Tensile Strength | MPa – 66.80 |
| Yield Strength (0.2%Offset) | MPa – 110 |
| Elongation | 39 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nial Sheets and Plates based in Houston, USA, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Inconel 690 circles offer numerous advantages, making them ideal for demanding applications. Their exceptional resistance to oxidation and corrosion, especially in harsh chemical environments, ensures durability and long service life. The material withstands high temperatures and thermal cycling, making it suitable for use in heat exchangers, power plants, and nuclear reactors. Inconel 690 circles also exhibit excellent mechanical strength and stress corrosion cracking resistance, enhancing reliability under extreme conditions. Additionally, their versatility and weldability make them easy to fabricate for various industrial and engineering purposes.
Yes, we offer custom sizes for Inconel 690 Circle to meet specific project needs. Our team at Nial Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
Inconel 690 Circles find extensive use in nuclear steam generators, heat exchangers, furnace muffles, petrochemical processing equipment, and components for thermal oxidizers. Their ability to withstand aggressive oxidizing agents, such as nitric and hydrochloric acids, makes them perfect for chemical and pollution control systems. In the power generation sector, Inconel 690 Circles are preferred for their durability and structural integrity, even under extreme thermal cycling and corrosive conditions, ensuring a long service life with minimal maintenance in critical applications.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
Discover high-quality products tailored to meet your unique needs and preferences.
Get instant quotes that fit your budget perfectly.
Houston, TX 77041
Copyright 2025 Nial Sheet and Plates. All rights reserved
