Cov pa roj carbon steel yog cov hlau uas muaj cov ntsiab lus ntawm 0.05 txog 2.1 feem pua ntawm qhov hnyav.
Cov hlau me me (hlau uas muaj cov feem pua me me ntawm carbon, muaj zog thiab tawv tab sis tsis yooj yim tempered), tseem hu ua cov pa roj carbon steel thiab cov pa roj carbon tsawg, yog tam sim no feem ntau hom hlau vim tias nws cov nqi qis thaum nws muab. cov khoom siv uas siv tau rau ntau daim ntawv thov. Cov hlau me me muaj kwv yees li 0.05-0.30% carbon. Cov hlau me me muaj lub zog tensile tsawg, tab sis nws yog pheej yig thiab yooj yim rau kev tsim; nto hardness tuaj yeem nce los ntawm carburizing.
Txuj No: GB / T 1591 Siab zog qis alloy cov qauv hlau
| CHEMICAL COMPOSITION % | MECHANICAL PROPERTIES | |||||||
| C (%) | Si (%) (Max) | Mn(%) | P(%) (Max) | S(%) (Max) | YS (Mpa) (Min) | TS (Mpa) | EL (%) (Min) | |
| q195 ua | 0.06-0.12 dr hab | 0.30 Nws | 0.25-0.50 Nws | 0.045 ib | 0.045 ib | 195 | 315-390 : kuv | 33 |
| q235 ib | 0.12-0.20 Nws | 0.30 Nws | 0.3-0.7 hli | 0.045 ib | 0.045 ib | 235 | 375-460 : kuv | 26 |
| q355 ib | (Max) 0.24 | 0.55 ib | (Max) 1.6 | 0.035 ib | 0.035 ib | 355 | 470-630 : kuv | 22 |
Post lub sij hawm: Jan-21-2022