ASTM B622 Hastelloy X Pipes and Tubes Grade Specifications
STANDARD | UNS | WERKSTOFF NR. |
Hastelloy X | N06002 | 2.4665 |
ASTM B622 Hastelloy X Pipes and Tubes Chemical Composition
Grade | Ni | Mo | Cr | Fe | W | Co | Mn | C |
Remainder | 8.0-10.0 | 20.5-23.0 | 17.0-20.0 | .2-1.0 | .5-2.5 | 1.0 max | .05-.15 |
Hastelloy X | P | S | Si | Al | Ti | B | Cu | |
.04 max | .03 max | 1.0 max | .50 max | .15 max | .01 max | .50 max | |
Hastelloy X Pipes and Tubes Mechanical & Physical Properties
Temp° F | Tensile (psi) | 2% Yield (psi) | Elongation in 2” % |
70 | 110,600 | 54,900 | 44 |
1000 | 89,000 | 35,600 | 49 |
1200 | 83,000 | 35,400 | 54 |
1400 | 67,000 | 34,400 | 53 |
1600 | 45,000 | 28,200 | 58 |
Hastelloy® X
ASTM B435, B366, B572, B619 B622, B626, B751, B775, B829
UNS Number N06002
DIN 2.4665
Other common names: Alloy X, Inconel® HX
Hastelloy X is a nickel-chromium-iron-molybdenum superalloy with
outstanding high temperature strength, oxidation resistance, and
fabricability. Alloy X’s oxidation resistance is excellent up to
2200° F. This nickel steel alloy has also been found to be
exceptionally resistant to stress-corrosion cracking in
petrochemical applications. Matrix stiffening provided by the
molybdenum content results in high strength in a solid-solution
alloy having good fabrication characteristics. Although this nickel
alloy is primarily noted for heat and oxidation resistance it also
has good resistance to chloride stress-corrosion cracking,
carburization, and excellent resistance to reducing or carburizing
atmospheres. Two common conditions that often lead to early failure
in high temperature alloys, carburization and nitriding, Hastelloy
X resists.
In what forms is Hastelloy X Available at Mega Mex?
Sheet
Plate
Bar
What are the characteristics of Hastelloy X?
Outstanding oxidation resistance through 2000° F
Resistant to carburization and nitriding
Excellent high temperature strength
Good resistance to chloride stress-corrosion cracking
In what applications is Hastelloy X used?
Gas turbines
Petrochemical industry
Industrial furnaces
Heat treating equipment
Nuclear engineering
Jet engine combustion chambers
Aircraft cabin heaters
Turbine exhaust components
Alloy X is one of the most widely used nickel base superalloys for
gas turbine engine combustion zone components such as transition
ducts, combustor cans, spray bars and flame holders as well as in
afterburners, tailpipes and cabin heaters. It is recommended for
use in industrial furnace applications because it has unusual
resistance to oxidizing, reducing and neutral atmospheres.
Hastelloy X is also used in the chemical process industry for
retorts, muffles, catalysts support grids, furnace baffles, tubing
for pyrolysis operations and flash drier components.
Fabrication with Hastelloy X
Alloy X has excellent forming and welding characteristics. It can
be forged and, because of its good ductility, can be cold worked.
It can be welded by both manual and automatic methods including
shielded metal arc, gas tungsten arc, gas metal arc and submerged
arc processes. The alloy can also be resistance welded. For hot
forming, the alloy should be heated to a starting temperature of
2150° F (1175°C).