The grades in this data sheet combine outstanding mechanical properties (very high strength, fatigue resistance and toughness) with good formability and weldability. The guaranteed high yield strength of these grades makes it possible to achieve substantial weight reduction through thickness reduction, whilst maintaining overall performance and safety. These steel grades are therefore frequently used to replace structural steel grades where weight reduction is required.
Thickness reduction brings additional savings when processing the material, since it is easier to weld, and reduces transport costs. Further savings are also achieved in service, in the form of lower energy consumption, improved mechanical performance, safety etc.
In some applications (conveying devices, earth-moving or transportation vehicles etc), wear can result from the action of abrasive substances on the steel surface. This is a complex physical phenomenon, which depends not only on the abrasive material itself, but also on the way abrasion occurs (pressure, load, impact etc).
Compared with standard structural steel grades, Ultra High Strength Low Alloy steel grades allow a significant improvement in wear resistance. In many instances, they can be more economical and easier to process than steel grades specifically designed for wear resistance.