Incoloy 803 Rods: Superior High-Temperature Performance for Demanding Applications

Incoloy 803 rods are advanced iron-nickel-chromium alloys engineered for superior performance in high-temperature and corrosive environments. With elevated nickel and chromium content, these rods offer exceptional resistance to oxidation, sulfidation, and carburization, making them ideal for demanding applications in petrochemical, chemical, and thermal processing industries.​

Chemical Composition

Incoloy 803 rods are composed of the following elements:​

Balance refers to the remaining composition, primarily iron.

Mechanical Properties

The mechanical properties of Incoloy 803 rods are as follows:​

Physical Properties

Key physical properties include:​

• Density: 7.86 g/cm³ (0.284 lb/in³)​

• Melting Range: 1365°C – 1400°C (2490°F – 2555°F)​

• Young’s Modulus (at 20°C): 195 GPa (28,300 ksi)​

• Shear Modulus (at 20°C): 73.8 GPa (10,700 ksi)​

• Poisson’s Ratio (at 20°C): 0.32​

Applications

Incoloy 803 rods are widely used in:​

• Petrochemical processing​

• Chemical processing​

• Thermal processing

• Manufacture of internally finned pyrolysis tubing in high-severity ethylene furnaces​

Frequently Asked Questions

1. What industries benefit from Incoloy 803 rods?

   • Industries such as petrochemical, chemical, and thermal processing utilize Incoloy 803 rods for their exceptional high-temperature corrosion resistance.​

2. How does Incoloy 803 compare to other Incoloy alloys?

   • Incoloy 803 offers higher nickel and chromium content than alloys like 800H and 800HT, providing enhanced resistance to oxidation, sulfidation, and carburization.​

3. What are the welding considerations for Incoloy 803 rods?

   • Welding should be performed using compatible consumables, such as INCONEL Welding Electrode 117 and INCONEL Filler Metal 617, to maintain the alloy's properties.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.