Hastelloy-X

1. Hastelloy X Material Introduction
HastelloyX is a nickel-based high-temperature alloy with high iron content mainly strengthened with chromium and molybdenum. It has good eutrophication and corrosion resistance, medium durability and creep strength below 900℃, and good cold and hot processing moldability and welding performance. Combustion chamber components and other high-temperature components used in the manufacturing of aircraft engines, for a long time, use below 900℃, and the short-term working temperature can reach 1080℃. The main varieties supplied are plates, strips, pipes, bars, forgings, rings and precision castings.

2. HastelloyX Chemical Composition

3. HastelloyX Physical Performance

3. HastelloyX Mechanical Properties
The mechanical properties of different varieties specified in the HastelloyX technical standards are shown in the table below.

① The room temperature tensile strength of the strip with δ<0.25mm is σb≥725MPa, δ5≥25%.
② The precision casting state of 815℃ is σb≥240MPa, δ5≥12%. After 800℃, 50h, HRC ≤24 after air-cooling treatment.

5. HastelloyX Organizational Structure
The alloy is in a solid solution state with an austenite matrix, and there are also a small amount of TiN and M6C type carbides. After long-term aging of 700-900°C, the main precipitated phases are M12C and M3B2, and are also accompanied by trace μ phases and L phases. After 700°C and 200 hours aging, a small amount of σ phase appears, but after 800°C aging, the σ phase does not exist, and a trace amount of M23C6 is precipitated, and sometimes a trace of L phase appears. Therefore, the alloy exhibits a certain degree of aging hardening after long-term aging, which reduces plasticity and reduces high temperature strength.
The technical standards for cold-rolled thin sheets stipulate that the grain size of cold-rolled thin sheets in supply state should be within the range of level 4 to 8.

6. Material characteristics
HastelloyX forming performance: Alloy has good cold and hot processing forming performance. The forging heating temperature is 1170℃±10℃, and the final forging temperature is not lower than 950℃; the slab hot rolling heating temperature is 1150℃±10℃, and the final rolling temperature is not lower than 850℃; the annular parts hot rolling heating temperature is 1170℃±10℃.
HastelloyX Welding Performance This alloy has good welding process performance and can be welded by argon arc welding, seam welding and spot welding. It is recommended to use HHastelloyX or HGH3113 welding wire when welding argon arc

6. Application Field
HastelloyX alloy materials have excellent corrosion resistance and high temperature resistance characteristics, and can be used in various high-temperature environments with corrosive media, such as the chemical industry.

7. HastelloyX variety specifications and supply status:
1. Type: forgings, round rods, steel plates, rings, seamless pipes, steel belts, and wire welding materials of various specifications.
2. Delivery status:

Seamless pipe: solid solution + acid white, length can be determined;
plate: solid solution, pickling, edge cutting;
steel pipe: solid solution, acid white + RT% flaw detection,
forgings: solid solution + aging/annealing + car light;
rods are in forged, surface polished or car light;
strips are delivered by cold rolling, solid solution soft, deoxidation;
silk is delivered in solid solution pickling dish shape or straight strip shape, solid solution straight strip fine polished state