Property |
Hastelloy Alloy Sheets |
Material Composition |
Similar to Hastelloy strips, these sheets are made of nickel-based alloys with high concentrations of molybdenum, chromium, and sometimes iron and tungsten for enhanced resistance to high-temperature corrosion. |
Thickness |
Generally thicker than strips, ranging from 1 mm to several centimeters, suitable for structural and high-stress applications. |
Applications |
Commonly used in the manufacturing of components like reactor vessels, valves, and piping systems, as well as aerospace, power generation, and chemical processing equipment. |
Mechanical Properties |
Excellent mechanical strength and toughness, making them ideal for structural and high-stress applications. They also offer good formability and weldability. |
Corrosion Resistance |
Similarly, Hastelloy sheets are highly resistant to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for aggressive chemical and industrial environments. |
Thermal Resistance |
Similar to strips, sheets retain their strength and resist oxidation in high-temperature environments, even in applications exceeding 1000°C (1832°F). |
Forming & Fabrication |
Hastelloy sheets are typically hot-rolled or cold-rolled and may be subjected to heat treatment (annealing) for improved strength and ductility. They can be welded, bent, or machined for complex shapes. |
Heat Treatment |
Heat treatments such as solution annealing or stress relieving are commonly applied to improve the performance of Hastelloy sheets in high-temperature environments. |
Welding & Joining |
Hastelloy sheets are highly weldable, and various welding techniques (e.g., TIG, MIG, electron beam welding) can be used. However, welding requires control of heat input to avoid compromising corrosion resistance. |
Examples of Alloys |
Hastelloy C-276, Hastelloy C-22, Hastelloy B-3, Hastelloy X |
Cost |
Similar to strips, Hastelloy sheets are more expensive than standard steel due to the high alloy content and complex processing. |
Common Standards |
ASTM B575, ASTM B626, ASTM B469, ASME SB-575. |