W. NR. 1.2085
0 CZK
Characteristics
Resistant to the corrosion, Martensite steel with the high content of chrome. The steel has good resistance to the wear, good machinability and polishability. Delivered quenched and tempered 280 - 325 HB.
Suitability
Mould for pressing of chemically-aggressive plastic substances, corrosin-proof clamping frames of moulds etc.
Chemical composion of steel W.Nr. 1.2085
| Steel grade | Chemical composion in % | Hardness | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| soft annealed | heat treated | ||||||||||||
| C | Mn | Si | Cr | W | Mo | V | Ni max | Co | P max. | S max. | HB max. | HRC min. | |
| DIN X33CrS16 | 0,28-0,38 | 1,00 | 1,00 | 15,00-17,00 | 1,00 | 0,030 | 0,030 | 230 | 48 | ||||
Heat treatment of steel W.Nr. 1.2085
| Way | Temperature [°C] | Procedure | |
|---|---|---|---|
| Forging | 800-1100 | Cool slowly in calm air or better e.g. in dry ash or other thermally-insulated material | |
| Normalization | 790-810 | Cool in air | |
| Soft annealing | 850-880 | War few hours (depending on the size), mostly 4 hours are enough and cool slowly in the furnace | |
| Stres annealing | 600-650 | Warm 1 to 2 hours and cool slowly in the furnace | |
| Hardening | 1000-1050 | Cool in oil or hot bath, the degree of tempering is set by hardness and toughness of instrument according to the tempering chart | |
| Tempering | 100-500 | ||
Note
Chart of tempering values depending on the hardness:
| °C | 100 | 200 | 300 | 400 | 500 |
|---|---|---|---|---|---|
| HRC | 48 | 48 | 47 | 46 | 47 |
