TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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Inconel 740 740H Price Tube Heat Exchanger
Inconel740, a nickel base superalloy for 700C ultra supercritical coal-fired power station, is a new nickel base superalloy developed by American SMC at the end of last century for the 700 ℃ ultra supercritical coal-fired power generation technology project in Europe.
Alloy 740 is a kind of Ni Cr co superalloy, which is age hardened by precipitation of gamma primary and secondary phases. After aging strengthening, 740 alloy exhibits excellent high temperature strength at temperatures below 850 ℃. Due to the high content of chromium and cobalt, 740 alloy has excellent oxidation resistance, carbonization and vulcanization properties at high temperature.
Chemical composition:
| C | 0.03 |
| Cr | 25.0 |
| Co | 20.0 |
| Mo | 0.5 |
| Al | 0.9 |
| Ti | 1.8 |
| Nb | 2.0 |
| Mn | 0.3 |
| Fe | 0.7 |
| Si | 0.5 |
| Nl | Bal |
Physical properties of inconel 740:
Density: ρ = 8.05g/cm3
Melting temperature range: 1288 ~ 1362 ℃
Resistivity: ρ = 1.168 * 10-6 Ω. M
