Railing compression strut 520

for metal structuresfor tensile structuresadjustable

The Macalloy 520 follows tradition and offers an alternative bar system with the same geometry, design and technology as the 460 system. The fittings are designed to take the increased capacity of the system, which is available in diameters M10 to M100 in carbon steel he Macalloy 520 bar has the following mechanical properties: Minimum Yield Stress 520 N/mm2 Minimum Breaking Stress 660 N/mm2 Minimum Elongation 19% Minimum charpy Impact Value 27J @-20°C Nominal Young’s Modulus 205 kN/mm2 Adjustments within each fork or spade are: M10 to M56: +/- 1/2 thread diameter M64 to M100: +/-25mm Turnbuckles give additional adjustments of: M10 to M24: +/-25mm M30 to M100: +/-50mm In addition, special turnbuckles, with a higher adjustment, are available on request. Corrosion Protection Macalloy tendons can be supplied in plain carbon steel, primed, or dip galvanised finish. If requested at the time of order, hot dip galvanising can be applied to tendons after the threading process. The threads are then brushed to remove any excess zinc. Length permitting, galvanised bars are delivered pre-assembled. This procedure ensures that threads are 100% operational. Connected bars, greater than 12m, are delivered part assembled. Please note that hot dip galvanising is not comparable with a paint finish. The visual appearance of forks and spades may differ in appearance from that of the bar, by virtue of the different material composition. Paint For architectural purposes, it is recommended a painted finish is applied to the galvanising. The corrosion resistance of the bar can then be enhanced.