熱門關鍵詞:無縫(feng)(feng)(feng)管(guan)(guan)(guan),無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan),厚(hou)(hou)壁(bi)鋼管(guan)(guan)(guan),無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan)廠(chang)(chang)家(jia),厚(hou)(hou)壁(bi)無縫(feng)(feng)(feng)管(guan)(guan)(guan),厚(hou)(hou)壁(bi)無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan),無縫(feng)(feng)(feng)管(guan)(guan)(guan)廠(chang)(chang)家(jia),厚(hou)(hou)壁(bi)鋼管(guan)(guan)(guan)廠(chang)(chang)家(jia),無錫(xi)無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan)廠(chang)(chang),厚(hou)(hou)壁(bi)管(guan)(guan)(guan),山東(dong)無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan),山東(dong)無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan)廠(chang)(chang),無錫(xi)無縫(feng)(feng)(feng)鋼管(guan)(guan)(guan)
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Q345B無縫鋼管現貨庫存詳細
Q345B無縫鋼管過去的一種叫法為:16Mn無縫鋼管。Q代表的(de)(de)是(shi)(shi)這種材質的(de)(de)屈(qu)服,后面(mian)的(de)(de)345,就(jiu)是(shi)(shi)指這種材質的(de)(de)屈(qu)服值(zhi),在(zai)345左(zuo)右。并(bing)會隨著材質的(de)(de)厚度(du)的(de)(de)增加(jia)而使其(qi)屈(qu)服值(zhi)減小。Q345A級(ji),是(shi)(shi)不(bu)(bu)做沖(chong)(chong)(chong)擊(ji)(ji)(ji);Q345B級(ji),是(shi)(shi)20度(du)常(chang)溫(wen)(wen)沖(chong)(chong)(chong)擊(ji)(ji)(ji);Q345C級(ji),是(shi)(shi)0度(du)沖(chong)(chong)(chong)擊(ji)(ji)(ji);Q345D級(ji),是(shi)(shi)-20度(du)沖(chong)(chong)(chong)擊(ji)(ji)(ji);Q345E級(ji),是(shi)(shi)-40度(du)沖(chong)(chong)(chong)擊(ji)(ji)(ji)。在(zai)不(bu)(bu)同(tong)的(de)(de)沖(chong)(chong)(chong)擊(ji)(ji)(ji)溫(wen)(wen)度(du),沖(chong)(chong)(chong)擊(ji)(ji)(ji)的(de)(de)數值(zhi)也有所不(bu)(bu)同(tong)。Q345A,Q345B,Q345C,Q345D,Q345E。Q345B熱擴無縫鋼管,滄州恩鋼管道設備(bei)有限公司
Q345B無縫鋼(gang)管計算(suan)公式
Q345B無(wu)縫鋼管重(zhong)量公式:[(外徑-壁(bi)(bi)厚)*壁(bi)(bi)厚]*0.02466=kg/米(每米的重(zhong)量)
Q345B無縫鋼(gang)管化學(xue)成(cheng)分:
C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.040 S:≤0.040 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 V:0.02-0.15 Nb:0.015-0.06
Q345B無縫鋼管分類
Q345B無(wu)縫鋼(gang)管是(shi)(shi)一種鋼(gang)材的材質,按等級可分為Q345A,Q345B,Q345C,Q345D,Q345E。它們(men)所代表的,主要是(shi)(shi)沖(chong)(chong)(chong)(chong)擊的溫(wen)度(du)有所不(bu)同。Q345A級,是(shi)(shi)不(bu)做沖(chong)(chong)(chong)(chong)擊;Q345B級,是(shi)(shi)20度(du)常溫(wen)沖(chong)(chong)(chong)(chong)擊;Q345C級,是(shi)(shi)0度(du)沖(chong)(chong)(chong)(chong)擊;Q345D級,是(shi)(shi)-20度(du)沖(chong)(chong)(chong)(chong)擊;Q345E級,是(shi)(shi)-40度(du)沖(chong)(chong)(chong)(chong)擊。
按用(yong)(yong)途(tu)分類有:一般結構用(yong)(yong)無(wu)縫(feng)鋼(gang)管,輸送流(liu)體用(yong)(yong)無(wu)縫(feng)鋼(gang)管,中低壓鍋(guo)爐用(yong)(yong)無(wu)縫(feng)鋼(gang)管,高壓鍋(guo)爐用(yong)(yong)無(wu)縫(feng)鋼(gang)管。
按材(cai)質(zhi)分(fen): 優質(zhi)碳(tan)素結構(gou)鋼(gang)(gang)無(wu)縫(feng)鋼(gang)(gang)管(guan),低合金(jin)結構(gou)鋼(gang)(gang)無(wu)縫(feng)鋼(gang)(gang)管(guan),合金(jin)鋼(gang)(gang)無(wu)縫(feng)鋼(gang)(gang)管(guan)。
Q345B無縫鋼管(guan)工藝流(liu)程
管坯--檢(jian)驗(yan)(yan)--剝(bo)皮--檢(jian)驗(yan)(yan)--加熱--穿孔--酸(suan)(suan)(suan)洗--修磨--潤滑(hua)風干--焊頭--冷拔(ba)--固溶處理--酸(suan)(suan)(suan)洗--酸(suan)(suan)(suan)洗鈍化--檢(jian)驗(yan)(yan)--冷軋--去油--切頭--風干--內拋光(guang)--外拋光(guang)--檢(jian)驗(yan)(yan)--標識(shi)--成品包(bao)裝
工業管工藝流程
管坯--檢(jian)驗(yan)--剝皮--檢(jian)驗(yan)--加(jia)熱--穿孔--酸洗--修蘑--潤滑風(feng)干(gan)--焊(han)頭--冷拔--固溶(rong)處理(li)--酸洗--酸洗鈍化--檢(jian)驗(yan)
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