Pipeline steel phaj yog feem ntau alloyed steels. Lawv feem ntau muaj cov hlau ua lub hauv paus hlau, nrog rau kev tswj xyuas zoo ntxiv ntawm lwm cov ntsiab lus. Cov pa roj carbon monoxide yog ib qho tseem ceeb, feem ntau tshwm sim nyob rau hauv qhov feem pua tsawg (ib puag ncig {{0}}}05% - 0.25%) los muab lub zog yam tsis muaj kev cuam tshuam ntau dhau ductility. Manganese feem ntau ntxiv rau hauv cov nyiaj xws li 1.0% - 2.0% los txhim kho lub zog thiab tawv. Lwm cov khoom xws li niobium (Nb), vanadium (V), thiab titanium (Ti) kuj tseem suav nrog. Cov micro- alloying cov ntsiab lus no ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo dua microstructure ntawm cov hlau, txhim kho nws lub zog, thiab txhim kho nws cov kev tiv thaiv kom tawg.
Khoom Parameters
| Txuj | Hom Steel Qib | Qhov Loj (mm) | Kev xa khoom |
| GB/T 21237 | L245 | 6-40 | CR/TMCP/TMCP+T |
| L260 | 8-40 | CR/TMCP/TMCP+T | |
| L360 | 8-40 | CR/TMCP/TMCP+T | |
| L390 | 8-40 | CR/TMCP/TMCP+T | |
| L415 | 8-40 | CR/TMCP/TMCP+T | |
| L450 | 8-40 | CR/TMCP/TMCP+T | |
| L485 | 8-40 | CR/TMCP/TMCP+T | |
| L555 | 8-30 | CR/TMCP/TMCP+T |
Cim npe nrov: L485 / L555 pipeline steel phaj, Tuam Tshoj l485 / l555 pipeline steel phaj manufacturers, lwm tus neeg, Hoobkas