The most common reference are that steel wire should be in accordance with BS 1052/1980 /ASTM E -8, tensile strength 38-55 kg. /mm.2 or TISI 71-2532, and heavily galvanize with BS 443/1982. Galvanized wire with plus pvc coating shall be capable of resisting the effect of exposure to ultraviolet light , immersion in seawater or polluted condition without cracking or brittling with 0.4 to 0.6 mm in thickness.
The majority of gabions, mattresses are supplied to meet well established specification as shown in table data. Alternative size, mesh wire diameter combination can be supplied to meet the customer’s requirements.
In case of using Zn-5 Aluminum alloy-coated carbon steel wire, its standard specification is based on ASTM A856/A856M-97. All wires coated with 95 % Zinc and 5 % Aluminium on hot dip coating process before producing gabion & mattress (coating class 100 type), according standard test of ASTM A90/A 90M-95a