GB/T 699-2015 優質碳素結構鋼
本標(biao)(biao)準規(gui)定了優質(zhi)(zhi)碳素(su)(su)結構鋼棒(bang)材的分類與代(dai)號,訂貨內容(rong),尺寸、外(wai)形及重量,技(ji)術要求(qiu),試(shi)驗(yan)方法,檢(jian)驗(yan)規(gui)則(ze),包裝、標(biao)(biao)志(zhi)和質(zhi)(zhi)量證明書。本標(biao)(biao)準適用(yong)于公稱直徑或厚度(du)不大于250mm熱軋和鍛(duan)制(zhi)優質(zhi)(zhi)碳素(su)(su)結構鋼棒(bang)材。經供需雙方協商,也可供應公稱直徑或厚度(du)大于250mm熱軋和鍛(duan)制(zhi)優質(zhi)(zhi)碳素(su)(su)結構鋼棒(bang)材(...