StE315 steel phaj yog cov hlau tsis tshua muaj zog steel phaj, nws cov khoom tseem ceeb suav nrog carbon, silicon, manganese, phosphorus thiab sulfur. Cov khoom siv tau zoo weldability, toughness thiab plasticity, thiab yog tsim rau kev tsim cov high-strength thiab high-durability siab hlab ntsha, roj pipelines, lub tsev tsim thiab lwm yam ntau yam khoom siv thiab cov khoom.
DIN17102 TStE315 steel phaj tshuaj muaj pes tsawg leeg thiab txhua yam khoom:
| S% max | N% max | Al % max | Cr% max | Cu% max | Mo% max | Ni% | Nb % max | ||||||||
| 0.025 | 0.2 | 0.2 | 0.3 | 0.20 | 0.08 | 0.3 | 0.03 | ||||||||
| Tensile zog Mpa min | Yield zog Mpa Min | ||||||||||||||
| 440-560 | 430-550 | 420-540 | 410-530 | 400-520 | 315 | 315 | 305 | 295 | 295 | 285 | 275 | 265 | 255 | 23 | |
