Industrial metal background

HASTELLOY Alloy W Bars&Forgings

Special AlloysBar/RodHASTELLOY Alloy W
UNS N10004 forgings

Description (English)

HASTELLOY Alloy W is supplied in the sheet solution heat-treated condition, delivering yield strength of 365 MPa, tensile strength of 848 MPa, and elongation of 55%. The alloy is manufactured to multiple AMS aerospace standards covering wire (AMS 5786) and bar/forgings (AMS 5755). The exceptional ductility (55%) combined with high molybdenum content provides excellent weldability and high-temperature strength. HASTELLOY W is widely used as welding wire for joining high-temperature nickel alloys, gas turbine engine components, and aerospace high-temperature fasteners.

Size Range

  • Bar: Ø 6 - 250 mm, Length up to 6000 mm

Grade Specification

SystemValue
🇺🇸 UNSN10004
🇪🇺 ENNiMo24Cr5Fe
🇩🇪 DIN2.4654
🇨🇳 GB2.4654

Chemical Composition

ElementValue
Nibal
Mo24
Fe6
Cr5
Co2.5max
Mn1max
Si1max
V0,6max
C0.12max

Mechanical Properties

PropertyValue
Yield Strength (0.2% offset)365 MPa
Tensile Strength848 MPa
Elongation (in 2 in)55%

Physical Properties

PropertyUnitValue
Density-0.324 lb/cu in
Specific Gravity-8.97
Melting Point-2520 °F
Specific Heat (32-212°F)-0.092 Btu/lb/°F
Thermal Expansion Coefficient (32-212°F)- 6.3 in/in/°F × 10⁻⁶
Thermal Conductivity (32-212°F)-80 Btu/sq ft/hr/°F/in
Electrical Resistivity (68°F)-720 ohms/cir mil ft
Tensile Modulus of Elasticity-30.4 × 10⁶ psi