1.4837 | GX40CrNiSi25-12 Hot corrosion with molten sulfate
| Numeric designation | 1.4837 |
|---|---|
| Chemical designation | GX40CrNiSi25-12 |
| State | Heißkorrosion mit Sulfatschmelze |
| Etching | ungeätzt |
In a test, the heat-resistant steel casting was exposed to K2SO4 (melting point 1069 °C) and heated up to 1100 °C in air. In addition to the surface oxidation of primarily chromium and silicon, the sulfate melt results in the formation of chromium sulfides with portions of iron and manganese sulfide.
Failure Cases
Breakage of a side cutter
1.4462 | X2CrNiMoN22-5-3 Duplex with sigma phase
1.6580 | 30CrNiMo8 +N + QT Forging crack
1.4765 | X8CrAl25-5 AlN precipitations
EN AC-43500 | AlSi10MnMg Cold run and hot crack
1.0503 | C45 Incorrect induction hardened
EN-GJS-500-7 | 5.3200 | Tool life problems in machining
CuAl8 solder on S235JR, liquid metal induced stress corrosion cracking
1.4571 | X6CrNiMoTi17-12-2 Fatigue Corrosion Cracking
1.7225 | 42CrMo4 Quasi-gap fracture