High temperature and oxidation resistance Haynes 214 ASTM B622 UNS N07214
Haynes 214/W-NR 2.4646/UNS N07214 high temperature alloy
Main components: 75Ni-16Cr-4.5Al-3Fe -0.05C -0.01Y-0.5Mn -0.2Si -0.1Zr -0.01B
It has excellent oxidation resistance up to 1260 ℃, and also has excellent resistance to carburization, and also has good resistance to chlorine-containing media environment. Used for harsh
Engraved industrial heating and special gas turbine components. Such as porous seals and so on.
It is a nickel-chromium-aluminum-iron alloy, which is mainly used in the temperature environment of 955oC (1750oF) and above. What it shows
The oxidation resistance far exceeds the oxidation resistance of almost all traditional heat-resistant forging alloys at this temperature.
Excellent mechanical properties under high temperature conditions
Corrosion resistance at ambient temperature
Excellent corrosion resistance and mechanical properties under high temperature conditions
Oxidation resistance
The precipitate can be hardened
Application areas include:
Mesh belt
Trays and supports for firing pottery and porcelain
Heat treatment of electronic equipment and technical grade ceramics
Approximate chemical composition
Ni 75%
Cr 16%
Al 4.5%
Fe 3%
Mn up to 0.5%
characteristic
Density 8.05 g/cm3 0.291 lb/in3
Melting point 1400oC 2550oF
Expansion coefficient 13.3 μm/m °C
(20-100°C) 7.4 x 10-6 in/in °F
(70-212°F)
Rigid modulus 84 kN/mm2 12183 ksi
Elastic modulus 217 kN/mm2 31474 ksi
Supply conditions Heat treatment (after forming)
Annealing/Spring Tempering Store at 400-450oC (750-840oF) for 2 hours and use air cooling to relieve stress.
Conditions Approximate tensile strength Approximate service temperature
Annealing 900-1200 N/mm2 131-174 ksi -200 to +1100oC -330 to +2010oF
(Suitable for low stress applications)
Spring tempered 1300-1700 N/mm2 189-247 ksi -200 to +1100oC -330 to +2010oF
(Suitable for low stress applications)
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