ČSN 12 050 / 1.1191 / C45
CZK 0
Characteristics
Carbon steel for heat treatment and surface hardening.
Suitability
Suitable for shafts of mining machines, turbo-compressors, carousels and so on. For bigger cogwheels, screws, gear rings, rotors of screw compressors, connecting rods, piston rods, spindles, plungers, pistons of compressors, pegs, screws, transport rollers, clutch disks, rollers, sockets, levers, stops, pins, connecting components, shunting forks, holders, carriers of satellites, beams, pawls, forged bolts of pressure containers, boring rods and cutter arbors.
Chemical composition of steel C45
| Steel grade | Chemical composition in % | Hardness in the state | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Soft annealed | Heat-treated | ||||||||||||
| C | Mn | Si | Cr | W | Mo | V | Ni max | Co | P max. | S max. | HB max. | HRC min. | |
| C45 | 0,42-0,50 | 0,50-0,80 | max 0,40 | max 0,40 | max 0,10 | 0,40 | 0,045 | 0,045 | 208 | ||||
Heat treatment of steel C45
| Way | Temperature [°C] | Procedure | |
|---|---|---|---|
| Normalization | 840-870 | Cool in air | |
| Hardening | 830-860 | Cool in oil | |
| 800-830 | Cool in water | ||
| Soft annealing | 680-720 | Cool in furnace | |
| Tempering | 530-670 | Cool in air | |
