Tempered steel with fine grain microstructure with a minimum yield strength of 650-700 MPa (N/mm2). It combines high resistance with excellent tenacity and a high resistance to fatigue. It has good behaviour for cold shaping and welding. This type of steel must be treated thermally using a temple and quenching process in order to vary its hardness and change its mechanical resistance. The use of this steel allows the weight of an element to be reduced without altering its load-bearing capacity. It is applied in the mining and forestry industries, for mobile crane jibs, telescopic cranes, dump trucks, lifting points, hoisting mechanisms, etc.
We have stock of S690QL quality in the following measurements:
- Thicknesses from 8 to 60 mm in 6000 x 2500 mm and 12000 x 2500 mm format.