Hastelloy® X AMS 5754

Hastelloy X is commonly used with jet engines such as afterburner components and tail pipes.  It is also commonly used in the gas turbine and petro-chemical industries.

Stock sizes: .625” to 2.750” diameters.

Common Specifications:

  • AMS 5754
  • AMS 5536
  • ASTM-B572
  • ASME-B572
  • Pratt & Whitney LCS F-17
  • General Electric S-400 / S-SPEC-35
  • GE B14H74
  • GE B50A436
  • GE B50A463
  • GE B50A249C
  • Rolls Royce Sabre

Industry Trade Names:

  • Alloy X
  • Hastelloy X = Haynes International
  • Inconel HX = Special Metals Corp
  • ATI HX = ATI Specialty Materials
  • Pyromet 680 = Carpenter Technology

Bars shall be suppled in the solution treated condition with a turned or centerless ground finish. 

Hast X shall be solution heat treated by heating within the range 2100 to 2150 °F, holding at the selected temperature within ±25 °F for a time commensurate with cross-sectional thickness but not less than 20 minutes, and cooling at a rate equivalent to an air cool or faster.

Hardness shall not exceed a 241 HB

Stress rupture properties — A tensile specimen, maintained at 1500 °F ± 3 °while a load sufficient to produce an initial axial stress of 15.0 ksi or higher is applied continuously, shall not rupture in less than 24 hours.

Rockwell-Industries-Hastelloy-X-ams-5754-image

Composition

Element Min. Max.
Carbon 0.05 0.15
Manganese 1.00
Silicon 1.00
Phosphorus 0.040
Sulfur 0.030
Chromium 20.50 23.00
Nickel 1.65 2.00
Molybdenum 8.00 10.00
Copper 0.50
Tungsten 0.20 1.00
Titanium 0.15
Aluminum (3.1.1) 0.50
Cobalt 0.50 2.50
Boron (3.1.1) 0.010
Iron 17.00 20.00