Precision galvanised hollows are manufactured from G250 Metal-Coated – GALVSTEEL™ coil with a galvanised coating of Z275.
Manufactured to specification AS/NZS 1450.
Coil yield strength expected 250-280 MPa. Tensile strength minimum 320 MPa. Elongation expected min 25%.
Standard lengths are 5.5m and 6.1m.