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歡迎來到鹽山昱通螺旋鋼管實體生產企業!

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昱通管道

鹽山昱通管道

專業生產銷售大口徑厚壁國標螺旋鋼管,廠內加工防腐/保溫/涂塑

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首頁 > 鋼管百科 > 施工現場鋼管配件通用檢驗內容

施工現場鋼管配件通用檢驗內容

日期:2020-07-17
鋼管

1.鋼管和配件必須具有制造商的合格證明。

2.鋼管和管件在使用前應根據設計要求檢查其規格,材料和型號。

3.使用前應目視檢查鋼管和管件,并要求表面:

a。無裂紋,縮孔,夾渣,折痕,厚皮等缺陷;

b。腐蝕或凹陷不得超過壁厚的負偏差;

C。螺紋密封性好,精度和粗糙度符合設計要求;

d。合金鋼管及其配件應標明材料。

4.使用前應通過光譜分析或其他方法對合金鋼管和預制構件進行重新檢查,并作記錄。

5.溫度低于20°C的鋼管,除奧氏體不銹鋼外,還應具有低溫沖擊韌性試驗結果,其各項指標不得低于規定值的下限。

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