鋼管無損檢測技術是指沒有損壞鋼管的情況下，馬上進行其內部和表面缺陷檢查。目前，漏磁無損探傷檢測、超聲探傷儀、渦流和瑩光磁粉探傷等早就廣泛在鋼管企業中運用。近幾年來無損檢測技術法有特別大發展趨向，近又發生了聲發射全息照相、超聲波頻譜分析無損探傷檢測、超聲波顯 象無損探傷檢測以及超聲波高溫無損探傷檢測等新技術應用。

　　鋼管直、薄厚和彎曲(qu)(qu)度(du)、長度(du)可在檢(jian)查(cha)地上(shang)用外(wai)卡規、千分(fen)尺和彎曲(qu)(qu)度(du)水平儀、長度(du)卷尺進行(xing)檢(jian)查(cha)。

　　擴大(da)開放徑、薄厚和長(chang)度還能(neng)夠采用(yong)(yong)(yong)(yong)(yong)自動式規格型號檢(jian)(jian)驗機(ji)器設備進(jin)(jin)(jin)行(xing)(xing)不斷檢(jian)(jian)驗。鋼(gang)(gang)管(guan)的內、外(wai)(wai)表面檢(jian)(jian)驗一般采用(yong)(yong)(yong)(yong)(yong)估(gu)(gu)算進(jin)(jin)(jin)行(xing)(xing)內外(wai)(wai)表面檢(jian)(jian)查(cha)，而(er)內表面除了采用(yong)(yong)(yong)(yong)(yong)估(gu)(gu)算外(wai)(wai)，也(ye)可應用(yong)(yong)(yong)(yong)(yong)垂(chui)直(zhi)面三棱(leng)鏡進(jin)(jin)(jin)行(xing)(xing)檢(jian)(jian)查(cha)。一些與眾不同適用(yong)(yong)(yong)(yong)(yong)范圍的鋼(gang)(gang)管(guan)還要(yao)求(qiu)依(yi)據(ju)無損 檢(jian)(jian)測技術，包(bao)括渦(wo)流、漏磁(ci)、超聲波、磁(ci)粉(fen)探傷等對鋼(gang)(gang)管(guan)內、外(wai)(wai)使用(yong)(yong)(yong)(yong)(yong)性能(neng)進(jin)(jin)(jin)行(xing)(xing)檢(jian)(jian)查(cha)。