Plastic Mould Steel
|
|
| M300 Bohler M300: Equivalent* 1.2316 |
|
Chemical composition (average %)
| C | Si | Mn | Cr | Ni | Mo | |
| M300 | 0.38 | 0.40 | 0.65 | 16.00 | 0.80 | 1.00 |
Material characteristic and use
| Properties | BOHLER M300 is a stainless martensitic chromium steel, offering excellent toughness, corrosion and wear resistance. It is characterized by improved machinability and polishability. |
| Application | Moulds for chemically aggressive plastics, e.g.: ● Moulds for household appliances ● Extrusion tools ● Moulds for fittings |
| As-supplied condition | Hardened and tempered to 290 -330 HB |
Physical characteristics
| Temperature | |||||||||
| 20 ºC | 100 ºC | 200 ºC | 300 ºC | 400 ºC | 500 ºC | 600 ºC | 700 ºC | ||
| Density | (kg/dm3) | 7.7 | |||||||
| Thermal conductivity | W/(m·K) | 15 | |||||||
| Specific heat | J/(kg·K) | 430 | |||||||
| Electrical resistivity | Ohm·mm2/m | 0.8 | |||||||
| Modulus of elasticity | 103N/mm2 | 223 | 218 | 212 | 205 | 197 | |||
| Thermal expansion | 10-6m/(m·K) | 10.4 | 10.8 | 11.2 | 11.6 | 11.9 | |||
* Chemical composition is only reference and might not be the same
Tel 
