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List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Hastelloy˘ X

Hastelloy˘ X

Hastelloy X is a Nickel-Chromium-Iron-Molybdenum alloy with an exceptional combination of oxidation resistance, ease of fabrication and high temperature strength. It has also been found to be exceptionally resistant to stress corrosion cracking in petrochemical applications. Hastelloy X possesses exceptional strength and oxidation resistance up to 1200°C (2200°F), and has exceptional forming and welding characteristics. Some applications that Hastelloy X is recommended for includes gas turbine engines, combustor cans, spray bars and flame holders.

Hastelloy X is also known as Inconel HX, Nicrofer 4722 Co, and Pyromet 680.

Available in all profile options

Hastelloy˘ X - Alloy Wire International 1

Key Features

Hastelloy X offers the following key features:

Exceptional oxidation resistance.
Highly resistant to stress corrosion cracking in petrochemical applications.

Typical Applications

Hastelloy X is known to be suitable for the following applications:

Gas turbine engines
Industrial furnaces
Chemical processing
Petrochemical industry


Designations

W.NR 2.4665
UNS N06002
AWS 057

Specifications

AMS 5754
AMS 5798
ASTM B619
GE B50A463
GE B50A655
ISO 15156-3 (NACE MR 0175)

Chemical Composition

The chemical composition of Hastelloy X is indicated in the table below:

ElementMin %Max %
Cr20.5023.00
Mo8.0010.00
Fe17.0020.00
W0.201.00
C0.050.15
Si1.00
Co0.502.50
Mn1.00
P0.04
S0.03
B0.01
Nibal

Alloy Details

Hastelloy X density, melting point, coefficient of expansion, and modulus of elasticity is indicated in the table below:

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.22 g/cm³1355 °C13.9 μm/m °C (20 – 100 °C)77.6 kN/mm²205 kN/mm²
0.297 lb/in³2470 °F7.7 x 10-6 in/in °F (70 – 212 °F)11255 ksi29733 ksi

Heat treatment of finished parts

The typical heat treatment of Hastelloy X:

Condition as supplied by AWITypeTemperatureTimeCooling
Annealed or Spring TemperStress Relieve400 – 450 °C (750 – 840 °F)2 HrAir

Properties

The typical mechanical properties of Hastelloy X:

Annealed
Approx. tensile strength<1050 N/mm²<152 ksi
Approx. operating temperature depending on load** and environment-200 to +400 °C-330 to +750 °F
Spring Temper
Approx. tensile strength1350 – 1550 N/mm²196 – 225 ksi
Approx. operating temperature depending on load** and environment-200 to +400 °C-330 to +750 °F

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Haynes International