Apvalus strypai
nuo Ø20mm iki Ø450mm
Description:
Carburizing steel
Application:
for loaded parts with high core strength: gear wheels, shafts
Chemical composition [%]
| C | Mn | Si | P | S | Cr | Ni | Mo | W | V | Co | Cu |
| 0,17-0,23 | 0,8-1,1 | 0,17-0,37 | max 0,35 | max 0,35 | 1-1,3 | max 0,3 | – | max 0,2 | max 0,05 | – | max 0,3 |
Equivalents
| PN | W. nr | EN | AISI | Russia (GOST) | Other |
| 18HGT | – | – | – | 18ChGT | – |
Processes
| welding | YES | |
| forging | YES | |
| rolling | YES | |
| nitriding | YES | |
| hardening | YES | temp. 850 – 880 [°C] |
| tempering | YES | temp. 150 – 200 [°C] |
Hardness
| after softening | 215 HB |
| Rm | 980 MPa |
| Re | 830 MPa |