| Download a pdf version of this data sheet for printing and future reference. (right click and select save to disk) |
| P20 Tool Steel (40CrMnNiMo8-6-4) |
| Plastic mould steel that is usually supplied in a hardened and tempered condition. Good machinability, better polishability, compared to 1.2312 (AISI P20+S).
Applications: Plastic moulds, frames for plastic pressure dies, hydroforming tools.
|
Colour Code
 |
Red/Yellow
|
|
Stocked Sizes |
|
| Condition of Delivery |
Hardened & tempered, 900 - 1050 N/mm2 |
| Related Specifications |
| |
Germany |
DIN 1.2311 |
| USA |
AISI P20 |
| Chemical Composition |
% |
| |
Carbon |
0.40 |
| Manganese |
1.50 |
| Chromium |
1.90 |
| Molybdenum |
0.20 |
| Physical Properties |
| Thermal expansion coefficient |
 |
| Thermal conductivity |
|
| Heat Treatment |
| Soft Annealing |
| Temperature |
Cooling |
Hardness |
| 710 - 740oC |
furnace |
max 235 HB |
|
| Stress Relief Annealing |
| Temperature |
Cooling |
| 500 - 550oC |
furnace |
|
| Hardening |
| Temperature |
Cooling |
Tempering |
| 830 - 870oC |
oil or hot bath
180 - 220oC |
see tempering diagram |
|
| Thermal Cycle Diagram |
|
| Continuous Cooling Transformation Diagram (CCT) |
|
| Tempering Diagram |
|
| Interlloy believes the information provided is accurate and reliable. However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions. |
|
