Wires and Cables / Wires Vineyard

STRUKTURASTEEL wire is made of high carbon-content steel (higher than 0,6%) coated with a zinc and aluminum alloy. High carbon content guarantees excellent resistance performances, preserving wire mechanical and physical characteristics throughout system entire life.

Its low elongation-rate reduces tensioning maintenance work, which are anyway very easy if wire-tensioning accessories are used.

USED MATERIAL
Steel used for STRUKTURASTEEL wire provides high resistance to stresses such, as tying and twisting for blocking. Wire is compliant with the UNI EN 50189: 2000 standard, which regulates flexibility requirements. According to this standard, wire twisted from twelve to eighteen times around its diameter, must not show any kind of fracture. These very high resistance characteristics allow to choose diameters that are more than 30% smaller than traditional galvanized wires (ultimate tensile strength 450 N/mm² = 45 kg), with significant savings both on materials and costs. With same diameter, and consequently same developments in meters per kilogram, overall resistance value of STRUKTURASTEEL wire is almost double than classical galvanized wire.

Furthermore, STRUKTURASTEEL wire has a minimum tensile strength of 1270 N/mm² – very high when compared to nominal tensile strength (+/- tolerance) of classic galvanized wire, which is equal to 450 N/mm².

STRUKTURASTEEL wire is coated with a layer of zinc (95%) and a layer of aluminum (5%), which makes the material highly resistant to corrosion, allowing wire to have a service life same as system’s one. Wire is compliant with the UNI EN 10244-2: 2003 standard which regulates coating quality requirements. According to this standard, wire twisted around a cylinder with diameter four times bigger than the one of tested wire must not show any cracks on coating.

Zinc and aluminum coating provides STRUKTURASTEEL wire with double protection against corrosion. Firstly, wire is protected because coating forms a reinforcement barrier that prevents general corrosion. Second protection mechanism is connected to formation of a galvanic cell that occurs when material is exposed to humidity (electrolyte). Zinc ions migrate to bare steel near the grooves and cut edges, protecting these areas from corrosion.

This coating therefore has the extraordinary ability to “self-heal”, a quality that makes STRUKTURASTEEL wire highly resistant to corrosion even in the presence of scratches, abrasions, cracks and cuts.

Product is supplied with minimum pre-set resistance values so that, even in the case of natural material tolerance, minimum material resistance is guaranteed and consequently the minimum stability of the system that will be established.

Furthermore, the coating is applied in accordance with the UNI EN 10244-2 standard with class A (maximum) galvanizing.

DIMENSIONAL AND RESISTANCE TABLE

Ø (mm)	Total resistance kg (min)	Minimum tensile strength N/mm2	Development m/kg	Maximum elongation %
1,6	261	1270	63	5
1,8	330	1270	50	5
2,0	408	1270	40	5
2,2	493	1270	33	5
2,4	587	1270	28	5
2,8	743	1270	22	5
3,0	918	1270	18	5
3,5	1250	1270	13	5
4,0	1632	1270	10	5

COATING CLASS TABLE
ZINC 95% /ALUMINUM 5%

Ø Diameter (mm)	CLASS A* g/m2	CLASS B g/m2
0,20 ≤ d < 0,25	–	20
0,25 ≤ d < 0,40	–	30
0,40 ≤ d < 0,50	85	40
0,50 ≤ d < 0,60	100	50
0,60 ≤ d < 0,70	115	60
0,70 ≤ d < 0,80	130	60
0,80 ≤ d < 0,90	145	70
0,90 ≤ d < 1,00	155	70
1,00 ≤ d < 1,20	165	80
1,20 ≤ d < 1,40	180	90
1,40 ≤ d < 1,65	195	100
1,65 ≤ d < 1,85	205	100
1,85 ≤ d < 2,15	215	115
2,15 ≤ d < 2,50	230	125
2,50 ≤ d < 2,80	245	125
2,80 ≤ d < 3,20	255	135
3,20 ≤ d < 3,80	265	135
3,80 ≤ d < 4,40	275	135
4,40 ≤ d < 5,20	280	150
5,20 ≤ d < 8,20	290	–
8,20 ≤ d < 10,00	300	–