St45.8 Pwopriyete chimik (%)
| Pwopriyete chimik | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Min | - | 0.1 | 0.4 | - | - |
| Max | 0.21 | 0.35 | 1.2 | 0.04 | 0.04 |
St45.8 Pwopriyete mekanik
| Epesè miray la t mm |
Fòs rupture σb Mpa |
Pwen sede σs Mpa |
Elongasyon nan kraze oswa elongasyon δ % |
Enèji chòk absòbe KV2 J |
|---|---|---|---|---|
| t Mwens pase oswa egal a 16 | 410~530 | Pi gran pase oswa egal a 255 | L0=5d0 Longitudinal: Pi gran pase oswa egal a 21 pèpandikilè: Pi gwo pase oswa egal a 19 |
DVM echantiyon pèpandikilè: Pi gwo pase oswa egal a 27 |
| 16＜t Mwens pase oswa egal a 40 | 410~530 | Pi gran pase oswa egal a 245 | L0=5d0 Longitudinal: Pi gran pase oswa egal a 21 pèpandikilè: Pi gwo pase oswa egal a 19 |
DVM echantiyon pèpandikilè: Pi gwo pase oswa egal a 27 |
| 40＜t Mwens pase oswa egal a 60 | 410~530 | Pi gran pase oswa egal a 235 | L0=5d0 Longitudinal: Pi gran pase oswa egal a 21 pèpandikilè: Pi gwo pase oswa egal a 19 |
DVM echantiyon pèpandikilè: Pi gwo pase oswa egal a 27 |
Valè minimòm de 0.2% pwen sede nan tiyo asye san pwoblèm nan tanperati ki wo
| Kalite Steel | Epesè miray la (mm) |
0.2% pwen sede nan tanperati sa yo | ||||||||
| Klas | Kòd materyèl | 200 degre | 250 degre | 300 degre | 350 degre | 400 degre | 450 degre | 500 degre | 550 degre | |
| MPa (Newton/mm²) Min |
||||||||||
| Sen 45.8 | 1.0405 | Mwens pase oswa egal a 16 16<> 40<> |
205 195 190 |
185 175 170 |
160 155 150 |
140 135 135 |
130 130 130 |
125 125 125 |
- | - |
