特殊钢
特殊鋼
특수강
SPECIAL STEEL
2004年
6期
42-45
,共4页
异型连铸坯%热轧H型钢%高强度%V-Nb微合金化
異型連鑄坯%熱軋H型鋼%高彊度%V-Nb微閤金化
이형련주배%열알H형강%고강도%V-Nb미합금화
马钢用60 t顶底复吹转炉冶炼,钢包炉吹氩、喂线和成分微调,异型坯(mm:750×450×120)弧形连铸和H型钢万能轧机轧制工艺研制了碳当量Ceq≤0.42%的V-Nb微合金高强度热轧H型钢(%):0.14～0.17C,0.43～0.55Si,1.28～1.45Mn,0.010～0.028S,0.010～0.027P,0.03～0.05Nb,0.08～0.12V.检验统计数据表明,BS 55C热轧H型钢组织为铁素体+珠光体,实际晶粒度9级,屈服强度均在420 MPa以上.
馬鋼用60 t頂底複吹轉爐冶煉,鋼包爐吹氬、餵線和成分微調,異型坯(mm:750×450×120)弧形連鑄和H型鋼萬能軋機軋製工藝研製瞭碳噹量Ceq≤0.42%的V-Nb微閤金高彊度熱軋H型鋼(%):0.14～0.17C,0.43～0.55Si,1.28～1.45Mn,0.010～0.028S,0.010～0.027P,0.03～0.05Nb,0.08～0.12V.檢驗統計數據錶明,BS 55C熱軋H型鋼組織為鐵素體+珠光體,實際晶粒度9級,屈服彊度均在420 MPa以上.
마강용60 t정저복취전로야련,강포로취아、위선화성분미조,이형배(mm:750×450×120)호형련주화H형강만능알궤알제공예연제료탄당량Ceq≤0.42%적V-Nb미합금고강도열알H형강(%):0.14～0.17C,0.43～0.55Si,1.28～1.45Mn,0.010～0.028S,0.010～0.027P,0.03～0.05Nb,0.08～0.12V.검험통계수거표명,BS 55C열알H형강조직위철소체+주광체,실제정립도9급,굴복강도균재420 MPa이상.
