Q: Cov tshuaj muaj pes tsawg leeg (%) ntawm DC04 yog dab tsi?
A: C≤0.08, Mn≤0.4, P≤0.025, S≤0.025, Al≥0.015 (feem ntau ≥0.02), Si≤0.03.
Q: Dab tsi yog qhov txiaj ntsig ntawm DC04?
A: 130-210 MPa; sab sauv txwv yog +40 MPa rau thickness ≤0.5 hli, thiab +20 MPa rau 0.5–0.7 hli.
Q: Dab tsi yog lub zog tensile thiab elongation tom qab tawg ntawm DC04?
A: Tensile zog ≥270 MPa, elongation tom qab tawg ≥34%; elongation tuaj yeem yog -4% rau thickness ≤0.5 hli, thiab -2% rau 0.5-0.7 hli.
Q: Dab tsi yog qhov yuav tsum tau muaj rau r-tus nqi (plastic strain ratio) thiab n-tus nqi (ua haujlwm hardening Performance index) ntawm DC04?
A: When the thickness is ≥0.5 mm, r90 ≥1.8, n90 ≥0.22; when the thickness is >2 hli, r90 tuaj yeem txo los ntawm 0.2.
Q: Cov tshuaj muaj pes tsawg leeg cuam tshuam li cas rau qhov sib sib zog nqus nqus ntawm DC04?
A: Cov pa roj carbon tsawg thiab siab aluminium txo cov kev suav nrog, kho cov nplej, txo cov txiaj ntsig ntawm lub zog, thiab txhim kho cov elongation thiab r tus nqi, kom tsis txhob tawg thaum sib sib zog nqus nqus.