Lub kauv steel yeeb nkab yog kauv seam steel yeeb nkab raws li cov hlau yob phaj raws li cov khoom siv raw, uas feem ntau yog nyem thiab tsim, thiab welded nrog cov txheej txheem tsis siv neeg ob-sided arc vuam txheej txheem. Kauv raj tseem hu ua kauv steel yeeb nkab lossis kauv raj. Nws yog dov lub qis-carbon-structured steel los yog tsis tshua muaj alloy qauv steel siv ntawm lub kaum sab xis ntawm ib tug kauv kab (hu ua molding lub kaum sab xis) rau hauv ib lub raj dawb paug, thiab ces welded cov yeeb nkab seams.
Lub kauv raj feem ntau muaj:
Q235A, Q235B, 10#, 20#, Q345 (16mn), L245 (B), L290 (X42), L320 (X46), L360 (X52), L390 (X56), L415 (X60), L450 (X65), L485 (X70), L555 (X80), L290NB/MB (X42N/M), L360NB/MB (X52N/M), L390NB/MB (X56N/M), L415NB/MB (x60n/m), L450MB (x65) , L485MB (X70), L5555MB (X80).
