Haynes Hastelloy X alloy, sheet, tested at 980C (1800F)

Subcategory: Metal; Nickel Base; Superalloy

Key Words: AMS 5798, AMS 5799, AMS 5888, UNS N06002, AMS 5536, AMS 5588, AMS 5754

Component   Wt. %
BMax 0.008 
Component   Wt. %
MnMax 1 
Component   Wt. %
SiMax 1 

Material Notes:
Solid-solution-strengthened with very good high-temperature strength and very good resistance to oxidizing environments up to about 1095C, and good carburization resistance. Applications include materials for fabricated or forged parts in gas turbine engines, and chemical and petrochemical plants, power plant and industrial heating applications.

Data provided by the manufacturer, Haynes International, Inc.

Physical PropertiesMetricEnglishComments
Density8.22 g/cc0.297 lb/in at RT.

Mechanical Properties
Tensile Strength, Ultimate175 MPa25400 psi 
Tensile Strength, Yield91 MPa13200 psi at 0.2%
Elongation at Break65.1 %65.1 % in 51 mm
Modulus of Elasticity205 GPa29700 ksi 20C
Modulus of Elasticity at Elevated Temperature139 GPa20200 ksi 1000C (1830F)
Modulus of Elasticity at Elevated Temperature151 GPa21900 ksi 900C (1650F)
Modulus of Elasticity at Elevated Temperature158 GPa22900 ksi 800C (1470F)
Modulus of Elasticity at Elevated Temperature166 GPa24100 ksi 700C (1290F)
Modulus of Elasticity at Elevated Temperature174 GPa25200 ksi 600C (1110F)
Modulus of Elasticity at Elevated Temperature186 GPa27000 ksi 400C (750F)
Modulus of Elasticity at Elevated Temperature197 GPa28600 ksi 200C (390F)

Thermal Properties
CTE, linear 500C15 m/m-C8.33 in/in-F 20-500C (68-930F)
CTE, linear 500C15.3 m/m-C8.5 in/in-F 20-600C (68-1110F)
CTE, linear 500C15.6 m/m-C8.67 in/in-F 20-700C (68-1290F)
CTE, linear 500C16 m/m-C8.89 in/in-F 20-800C (68-1470F)
CTE, linear 500C16.3 m/m-C9.06 in/in-F 20-900C (68-1650F)
CTE, linear 1000C16.6 m/m-C9.22 in/in-F 20-1000C (68-1830F)
Thermal Conductivity at Elevated Temperature16.9 W/m-K117 BTU-in/hr-ft-F 400C (390F)
Thermal Conductivity at Elevated Temperature20.9 W/m-K145 BTU-in/hr-ft-F 600C (1110F)
Thermal Conductivity at Elevated Temperature22.8 W/m-K158 BTU-in/hr-ft-F 700C (1290F)
Thermal Conductivity at Elevated Temperature24.8 W/m-K172 BTU-in/hr-ft-F 800C (1470F)
Thermal Conductivity at Elevated Temperature26.7 W/m-K185 BTU-in/hr-ft-F 900C (1650F)
Thermal Conductivity at Elevated Temperature28.7 W/m-K199 BTU-in/hr-ft-F 1000C (1830F)
Melting Point1260 - 1355 C2300 - 2470 F 
Solidus1260 C2300 F 
Liquidus1355 C2470 F 
Maximum Service Temperature, Air1095 C2000 F 

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