X (ERNiCrMo-2)
AWS A5.14 ERNiCrMo-2
ASME SFA 5.14 ERNiCrMo-2
Alloy X is a nickel-chromium-molybdenum “superalloy” used for MIG, TIG or plasma arc welding of similar base metals such as Hastelloy® X to itself or to stainless steel, carbon
steel and low alloy steels. This filler metal offers an exceptional combination of oxidation, corrosion and thermal shock resistance. The weld deposits of Alloy X exhibit high temperature strength and resists weld metal fatigue at
temperatures up to 2200°F. Alloy X is commonly used in the aerospace industry for engine tailpipes, turbine blades, nozzle vanes and after burner components. It is also used in petrochemical applications to combat stress corrosion
cracking.
TYPICAL WELD METAL CHEMISTRY (%)
Ni | Balance |
Cr | 20.5-23.0 |
Mo | 8.0-10.0 |
W | 0.2-1.0 |
P | 0.04 max. |
Si | 1.0 max. |
Co | 0.5-2.5 |
Fe | 17.0-20.0 |
Mn | 1.0 max |
C | 0.05-0.15 |
S | 0.03 max. |
Cu | 0.50 max. |
Others (total) | 0.50 max. |
MINIMUM MECHANICAL PROPERTIES (as welded)
Tensile strength (psi) | 109,500 |
Yield strength (0.2% offset) (psi) | 55,900 |
Elongation in (%) | 45 |
Rockwell hardness | B 92 |
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