Hastelloy C is a nickel-chromium-molybdenum alloy with outstanding high-temperature stability as evidenced by high ductility and corrosion resistance. Hastelloy C alloy has exceptional resistance to wide variety of chemical process environments. These include hot contaminated mineral acids, solvents, chlorine and chlorine contaminated media (organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions.
Hastelloy C Nominal Chemical Composition, Weight Percent
Ni |
Co |
Cr |
Mo |
W |
Fe |
Si |
Mn |
V |
C |
Others |
balance |
2.5 max |
14.5-16.5 |
15.0-17.0 |
3.0-4.5 |
4.0-7.0 |
1.0 max |
1.0 max |
0.35 max |
0.08 max |
P-0.04 max |
S-0.03 max |
Hastelloy C AVERAGE TENSILE DATA
Form |
Ultimate Tensile Strength |
Yield Strength at 0.2% Offset |
Elongation in 2 in (51mm) |
MPa |
MPa |
% |
|
Bar |
690 |
315 |
30 |
Hot-rolled Plate |
690 |
315 |
30 |
Cold-rolled Plate |
690 |
285 |
40 |
Strip |
690 |
315 |
30 |
Hastelloy Calloy can be forged, hot-upset, and impact extruded. Although the Hastelloy C tends to work-harden, Hastelloy C can be successfully deep-drawn, spun, press formed or punched. All of the common methods of welding can be used to weld Hastelloy C alloy, although the oxy-acetylene and submerged arc processes are not recommended when the fabricated item is intended for use in corrosion service. Special precautions should be taken to avoid excessive heat input.
Hastelloy C alloy plate, sheet, strip, bar, tubing and pipe are covered by ASME specifications B/SB-622, B/SB-619, B/SB-575, B/SB-574 and B/SB-366 ,DIN
17751,DIN 17750,DIN 17752
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