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        Location:产品首页 >> Product Center >> ERW Steel Pipe >> ERW Pipe for Deep Well Pump
        • 产品名称: ERW Pipe for Deep Well Pump
        • 产品编号: B011
        • Views : 45

        Name of product: ERW Pipe for deep well pump
        Standard: Q235B
        Technical requirement
        O.D. tolerance: ≤±1.0%D;
        Tolerance of Wall Thickness: -10.0%t—+12.5%t;
        Out of Roundness:≤0.75D;
        Tolerance of Length : 0—+20mm;
        Straightness: pipe length≤0.12 %L, ≤1.2mm/m per meter of steel pipe;
        Out of squareness: ≤1.6mm;
        Outside bur: almost abreast with the base metal
        Inside bur: ≤1.5mm, radial offset≤0.4mm
        Hydrostatic Pressure Test≥4MPa   time holding test pressure≥5s