GB/T 699-2015 優質碳素結構鋼
本標準規(gui)定了優(you)質(zhi)(zhi)(zhi)碳(tan)素結(jie)構(gou)(gou)鋼(gang)棒(bang)材(cai)的分類與代號,訂(ding)貨(huo)內容,尺寸、外形(xing)及重量,技術要求(qiu),試(shi)驗方(fang)法,檢驗規(gui)則,包裝、標志和質(zhi)(zhi)(zhi)量證明書。本標準適用(yong)于(yu)公稱直(zhi)(zhi)徑或(huo)厚(hou)度不大于(yu)250mm熱(re)軋和鍛(duan)制優(you)質(zhi)(zhi)(zhi)碳(tan)素結(jie)構(gou)(gou)鋼(gang)棒(bang)材(cai)。經供(gong)(gong)需(xu)雙方(fang)協(xie)商,也可供(gong)(gong)應公稱直(zhi)(zhi)徑或(huo)厚(hou)度大于(yu)250mm熱(re)軋和鍛(duan)制優(you)質(zhi)(zhi)(zhi)碳(tan)素結(jie)構(gou)(gou)鋼(gang)棒(bang)材(cai)(...