S420N yog qhov siab - lub zog qis {}}} cov roj av uas muaj zog sib xyaw nrog lub zog siab. Nws cov ntsiab lus carbon yog feem ntau tsawg dua 0.25%. Piv nrog rau cov hlau ua tib zoo li cas, nws muaj cov txiaj ntsig ntau dua, kom zoo dua qub, qis dua txias, qis dua txias, qis dua li kev txhim kho kom zoo dua rau cov atmospheric thiab dej hiav txwv.
S420N Hlau yog qhov zoo Weldability qauv qauv hlau. Sib piv S355Nn, S420N tus qib muaj ntau ntxiv thiab lub zog tensile. Qhov sib luag ntawm qib ntawm S420N yog S420m. Gnee Steel muaj kev paub ntau yam hauv kev tsim khoom s420n. Peb koom tes nrog Whyang zeb ntawm HBIS los tsim cov max thickness 300 hli hauv electroslag rechanting technical. Peb qhov zoo dua yog tias peb tuaj yeem muab cov khoom thauj hauv lub sijhawm xa khoom ceev tshaj plaws, txawm nyob hauv ib lub phaj hauv ib txwm muaj kev tshwj xeeb.
Tshuaj lom neeg cov tshuaj & cov cuab yeej kho tshuab
Hais txog S420N Steel nthuav dav cov lus qhia, thov saib lub sijhawm ua ntu zus hauv qab no.
Tshuaj lom neeg yog max sib xyaw ntawm cov tshuaj ntsuam xyuas:
| Teem nqi | C % | SI% | Mn% | P % | S % | V % | Ib% | Cr% |
| S420N | 0.200 | 0.600 | 1.0-1.7 | 0.030 | 0.025 | 0.020 | 0.020 | 0.300 |
| Cu% | Mo% | Nb% | Ni% | Ti% | N % | |||
| 0.550 | 0.100 | 0.050 | 0.800 | 0.050 | 0.025 |
Cov Cuab Yeej Siv Cov Cuab Yeej Hlau Phaj
| Teem nqi | Tuab (mm) | Min Tawm Los (MPA) | Tensile (MPA) | Elongation (%) | Min xav txog lub zog | |
| S420N | 8mm-100mm | 360map-420mpa | 520-680MPA | 19% | -20 | 40J |
| 101mm-200mm | 330MPA-360MPA | 500-650MPA | 18% | -20 | 40J | |
| 201mm-250mm | 320MPA-330MPA | 500-650MPA | 18% | -20 | 40J | |
| Lub min cuam tshuam lub zog yog lub zog ntev | ||||||
Cov Kev Siv ntawm S420N Hlau Phaj
S420N yog feem ntau siv nyob rau hauv cov nkoj loj, cov choj siv hluav taws xob, siv tshuab hluav taws xob siab, thiab lwm yam loj welded qauv txheej txheem.
