Hastelloy C-4 Chemical compostion:
Hastelloy C-4 Physical properties:
Hastelloy C-4 Alloy minimum mechanical properties in the room
HASTELLOY C-4 alloy is a nickel-chromium-molybdenum alloy with
high-temperature stability as evidenced by high ductility and
corrosion resistance even
after aging in the 1200 to 1900°F (649 to 1038°C) range. This alloy
resists the formation
of grain-boundary precipitates in the weld heat-affected zone, thus
making it suitable
for most chemical process applications in the as-welded condition.
C-4 alloy also
has excellent resistance to stress-corrosion cracking and to
oxidizing atmospheres up to
HASTELLOY C-4 alloy has exceptional resistance to wide variety of
environments. These include hot contaminated mineral acids,
and chlorine contaminated media (organic and inorganic), dry
chlorine, formic and
acetic acids, acetic anhydride, and seawater and brine solutions.
HASTELLOY C-4 alloy can be forged, hot-upset, and impact extruded.
alloy tends to work-harden, it can be successfully deep-drawn,
spun, press formed or
punched. All of the common methods of welding can be used to weld
alloy, although the oxy-acetylene and submerged arc processes are
when the fabricated item is intended for use in corrosion service.
should be taken to avoid excessive heat input.