For functional parts, it is important to consider the application and the direction of the loads. The most common properties considered are strength, ductility, hardness, ... and the thickness is called the short transverse direction. S355 steel is a structural steel with a minimum yield strength (R eH) of 355 N/mm 2. The more grains in a given amount of space, the stronger the steel. These grains vary in size and in orientation but are usually microscopic and their direction is determined by the processing conditions. In the direction of the grain, the bending strength is directly proportional to the density of the wood. Upgrade to Donating Member status and remove ads. While sheet metal gauges run from 0.005 to 0.249 inch thick, aluminum and steel plate thicknesses start at 0.250 in. The in-plane compressive strength and yield strength showed a statistically significant relationship It is based on the observation that grain boundaries are insurmountable borders for dislocations and that the number of dislocations within a grain have an effect on how stress builds up in the adjacent grain, which will eventually activate dislocation sources and thus enabling deformation in the neighbouring … Part strength. From Professor Gene Wengert, forum technical advisor: The grain direction (flat or vertical) has essentially no effect on the strength. For comparison, a nonferrous-alloy cell (such as aluminum) is face-centered cubic (FCC), with an atom at each corner and one in the center of each face (Fig.