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BS1139 Galvanised Scaffold Pipe Specification

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Metal scaffolding — Part 1: Tubes — Section 1.1 Specification for steel tube

5 Manufacture

5.1 General

5.1.1 The tube shall be produced by a seamless or welded process. If the method of manufacture of the tube is not specified in the order, the choice of the method shall be at the option of the tube manufacturer.

5.1.2 The tubes shall have a smooth external surface consistent with the method of manufacture. Surface imperfections are permissible provided that the tube dimensions remain within the tolerance limit specified in Table 3.

5.1.3 The tubes shall have a circular profile and any ovality shall not exceed the tolerance limits on outside diameter specified in Table 3.

5.1.4 The deviation from straight shall not exceed 3 mm in any one metre and the maximum deviation over the full length L of the tube shall not exceed 0,002 L

5.1.5 The ends shall be cut square with the axis of the tube and shall be free from burrs.

5.2 Tube dimensions, mass and tolerances

Tube dimensions, mass and tolerances shall be in accordance with Table 3.

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BS1139 Galvanised Scaffold Pipe Loaded indoor warehouse

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BS1139 Galvanised Scaffold Pipe 008615122519420 (3)