Transcription of HOLLOW STRUCTURAL SECTIONS - cousesteel.com
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HOLLOW STRUCTURAL SECTIONS - cousesteel.com
HOLLOW STRUCTURAL SECTIONSOF NORTH AMERICAC olumn Load Tables2 Electric Resistance Welding (ERW) ProcessIn the tube mill, flat steel strip (1) is formed continuously around itslongitudinal axis to produce a round tube. This is done by moving thestrip through a progressive set of rolls (2-6). The strip edges (7) areheated by either high frequency induction or contact welding and thenforged together by weld rolls to create a continuous longitudinal weldwithout the addition of filler metal. The weld seam (8) is then cooledand processed through a set of sizing/shaping rolls which cold-form itinto a round (9), square (10) or rectangular (11) Weld-Square (ERW) ProcessIn the weld mill, driven forming dies progressively shape the flat strip(1) b
4 Tables of allowable axial compressive loads, in kips, are presented for square, rectangular and round hollow structural sections ( HSS) manufac-
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