txias kuav los tiag hlau kauj DC01 DC03 DC04 DC06
Nrog rau kev kos duab zoo tshaj plaws thiab kev ua haujlwm txuas thiab qhov ua tau zoo dua qhov tseeb, cov kauv kauv cov pa roj carbon tsawg thiab cov pa roj carbon qis uas tau muab los ntawm Mittel tau siv dav rau kev tsim khoom ntawm ntau yam tsheb. Nrog qee qhov ductility, DC04 (St14, St15) qis carbon thiab ultra-low carbon automotive steel daim hlau yog tsim rau yooj yim tsim, khoov lossis vuam.
DC04 (St14, St15) qis carbon thiab ultra-low carbon automotive steel hlau tshuab thiab txheej txheem kev ua haujlwm:
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Hlau qib
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Tawm zog MPa |
Tensile zog Mpa ≥ |
Tom qab tawg feem pua Elongation (L0 = 80mm, b = 20mm)%≥ | rb, c ib ≥ |
nb, c ib ≥ |
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| Nominal Thickness mm | ||||||||
| <;0.70 | 0.70~<;1.0 | 1.0~<;1.6 | 1.0 ~ <; 1.6 | |||||
| 1,6 ua | DC04 (St14, St15) | 270 | 36 | 38 | 39 | 40 | 120 ~ 210 | 1.5 |
0.18
kev noj RP0.2 thaum muaj qhov tsis txaus ntseeg tawm los, txwv tsis pub ReL.
cr = (r90+2r45+r0)/4; n = (n90 +2n45 +n0)/4.
DC04 (St14, St15) qis carbon thiab ultra-low carbon automotive steel daim hlau ntau thiab tsawg:
Nominal thickness: 0.30mm ~ 0.35mm, nominal dav: 700mm ~ 1850mm.
DC04 (St14, St15) qis carbon thiab ultra-low carbon automotive steel steel tensile lim cim:
Nws tau lees tias tsis muaj lub zog ua kom muaj zog tshwm sim ntawm cov hlau hlau thiab cov kab ntawm lawv daim ntawv thov tsis pub dhau 6 lub hlis tom qab lawv tau tsim thiab nyob rau hauv rooj plaub ntawm chav sov.
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DC04 (St14, St15) qis carbon thiab ultra-low carbon automotive steel hlau nto zoo:
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Qib | Txoj Cai No. |
| Nta | Tus txheeb ze qib siab tiav qhov saum npoo | FB (O3) |
| Nws tau tso cai rau lub neej ntawm ob peb qhov tsis xws luag uas yuav tsis cuam tshuam rau kev tsim thiab txheej & plating nplaum xws li khawb me me, kev xav, lub qhov, cov ntawv yob thiab cov xim oxidation. | Qib siab tiav qhov saum npoo | FC (O4) |
| Ib sab ntawm qhov ua tau zoo yog pub dawb los ntawm ib qho tsis xws luag pom thiab lwm sab yuav tsum mus txog FB yam tsawg kawg. | Ultra high-qib tiav nto | FD (O5) |
