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        Location:产品首页 >> Product Center >> Spiral Steel Pipe >> Steel Pipe for Irrigation
        • 产品名称: Steel Pipe for Irrigation
        • 产品编号: A012
        • Views : 34

        Production Name:Steel Pipe for Irrigation
        Grade: Q235B
        Technical Requirement:
        O.D.Tolerance of Pipe: Body≤±0.75%D; End≤±0.50% D或±4.5mm,min value
        Tolerance of Wall Thickness:≤±0.1t
        Out of Roundness:the end of each steel pipe length 1.0mm within the scope, max diameter≤1%D,min diameter≤1%D
        Tolerance of Length: ±50mm
        Straightness: Full length ≤0.2%L;
        Out of squareness ≤1.6mm
        Blunted Edge:1.6±0.8mm
        Height of outer welded seam:≤3.5mm
        Height of inner welded seam:≤3.5mm
        Hydrostatic test pressure ≥4.2 MPa delay time≥10s
        Non-destructive Inspection:Every 10pcs extract as least 2pcs shall be inspected RT full length of welded seam.