大口徑厚壁鋼管廠家-大口徑厚壁鋼管現貨-大口徑厚壁鋼管規格

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大口徑厚壁鋼管

作者:山東鵬鑫鋼鐵(tie)有(you)限公司   時間(jian):2019/10/7 17:59:09  來源://156699.cn

厚壁鋼管.jpg

  大口徑厚壁鋼管切割多少錢

  大口徑厚壁鋼管知識大全

  一般來說,管子的直徑可分為外徑、內徑、公稱直徑。管材為厚壁鋼管的管(guan)子(zi)的外(wai)徑用 字母D來表示,其后附(fu)加外(wai)直(zhi)徑的尺寸和壁厚.

  例如外徑為108的厚壁鋼管,壁厚為5MM,用D108*5表示,塑料管也用外徑表示,如De63,其他如鋼筋混凝土管、鑄鐵管、鍍鋅厚壁鋼管等(deng)采(cai)用(yong)DN表(biao)示,在(zai)(zai)(zai)設計圖紙(zhi)中(zhong)一(yi)般(ban)采(cai)用(yong)公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)來(lai)表(biao)示,公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)是為(wei)了設計制造(zao)和(he)維修的(de)(de)(de)(de)方便人(ren)為(wei)地規定(ding)的(de)(de)(de)(de)一(yi)種標準,也較公稱(cheng)(cheng)通徑(jing)(jing)(jing)(jing)(jing)(jing)(jing),是管(guan)(guan)(guan)(guan)子(zi)(zi)(zi)(或者管(guan)(guan)(guan)(guan)件)的(de)(de)(de)(de)規格名稱(cheng)(cheng)。管(guan)(guan)(guan)(guan)子(zi)(zi)(zi)的(de)(de)(de)(de)公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)和(he)其內(nei)(nei)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)、外徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)都不(bu)(bu)相等(deng),厚(hou)(hou)壁(bi)鋼(gang)管(guan)(guan)(guan)(guan)例如:公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)為(wei)100MM的(de)(de)(de)(de)厚(hou)(hou)壁(bi)鋼(gang)管(guan)(guan)(guan)(guan)郵(you)102*5、108*5等(deng)好(hao)幾種,108為(wei)管(guan)(guan)(guan)(guan)子(zi)(zi)(zi)的(de)(de)(de)(de)外徑(jing)(jing)(jing)(jing)(jing)(jing)(jing),5表(biao)示管(guan)(guan)(guan)(guan)子(zi)(zi)(zi)的(de)(de)(de)(de)壁(bi)厚(hou)(hou),因(yin)此(ci),該厚(hou)(hou)壁(bi)鋼(gang)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)內(nei)(nei)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)為(wei)(108*5-5)=98MM,但是它不(bu)(bu)完全等(deng)于厚(hou)(hou)壁(bi)鋼(gang)管(guan)(guan)(guan)(guan)外徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)減(jian)兩(liang)倍壁(bi)厚(hou)(hou)之差(cha),也可(ke)以(yi)說,公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)是接近于內(nei)(nei)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing),但是又不(bu)(bu)等(deng)于內(nei)(nei)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)的(de)(de)(de)(de)一(yi)種管(guan)(guan)(guan)(guan)子(zi)(zi)(zi)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)的(de)(de)(de)(de)規格名稱(cheng)(cheng),在(zai)(zai)(zai)設計圖紙(zhi)中(zhong)所以(yi)要用(yong)公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing),目的(de)(de)(de)(de)是為(wei)了根據公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)可(ke)以(yi)確(que)定(ding)管(guan)(guan)(guan)(guan)子(zi)(zi)(zi)、管(guan)(guan)(guan)(guan)件、閥(fa)門、法蘭、墊片(pian)等(deng)結構尺寸與連接尺寸,公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)采(cai)用(yong)符號DN表(biao)示,如果在(zai)(zai)(zai)設計圖紙(zhi)中(zhong)采(cai)用(yong)外徑(jing)(jing)(jing)(jing)(jing)(jing)(jing)表(biao)示,也應該作出(chu)管(guan)(guan)(guan)(guan)道規格對照表(biao),表(biao)明某種管(guan)(guan)(guan)(guan)道的(de)(de)(de)(de)公稱(cheng)(cheng)直(zhi)(zhi)(zhi)徑(jing)(jing)(jing)(jing)(jing)(jing)(jing),壁(bi)厚(hou)(hou)。