Q345D-Z15, Q345C-Z15 Plate with Z-Direction Testing

　　Katalor can manufacture material Q345D-Z15, Q345C-Z15steel plates with Z-Direction Testing. Both Q345D-Z15and Q345C-Z15plates are Z quality steel. As for Z direction testing: In the steel structure with welded joints, when the thickness of the steel plate is not less than 40 mm and the tensile force along the thickness direction of the plate is tolerated, in order to avoid lamellar tearing during welding, it is necessary to use a steel material resistant to lamellar tear (usually referred to as "Z testing steel"). There is a layered tear problem in thick plates, so a Z-direction performance test is required.

　　Z-quality: Normal quality steel plates are usually supplied with guarantees of mechanical properties either in the rolling direction of the plate or in the width of the plate (x- and y-directions respectively). The properties in the through thickness direction (z-direction) are not specified.

　　Z-testing: Before Z-quality plates are delivered, special Z-samples are taken on which the reduction of area in the fracture during tensile testing is recorded. A high value of the reduction of area is a sign of good Z-characteristics.

　　Z Quality Steel Q345D-Z15, Q345C-Z15Plate Stock(size mm)