Finland-based steelmaker Ruukki has announced that it has added a new grade to its Optim portfolio of high-strength structural steels. The new Optim 700 QL1 is a structural steel with improved impact strength properties.
According to Ruukki, the impact strength of Optim 700 QL1 has been tested at a temperature of -60oC making it ideal for use in very demanding conditions and at sub-zero temperatures. Applications include cranes, load-bearing structures as well as frame structures and components of heavy machinery. The new steel grade is available in a thickness range of 6-60 mm.
"The strength and impact toughness of Optim 700 QL1 structural steel ensures the load-bearing capacity of even the most demanding lifting equipment and meets the applicable safety criteria also at low temperatures," says Panu Pitknen, vice president, Optim & Raex at Ruukki.