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Aluminium Joists & Stringers

Aluminium Tube

Grade T6082-T6 , compaint to BS1139 1.2:1990

Flexural Stiffness 10.45 x109N.mm2

Design Strength 255 N/ mm2

Plastic Modulus 8.61 cm3

Safe Working Moment 1.33kNm


CARE OF TUBE

STRAIGHTNEE OF TUBE 

Bent tube should not be used .Tube should be considered bent if the deviation from a straight line is grater than 15mm in any 3m length .Aluminium tube should not be straightened .The straight parts of a tube may be cut out and re-used,but the remainder should be scrapped.

HEAT TREATMENT OF TUBE

Because aluminium tube is heat treated in manufacture , heat should not be applied to it by welding or flame,uless this is carried out in controlled conditions


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