Tensile strength
Tensile strength is the maximum stress a material can withstand under tension before it breaks. It indicates how much elongation or deformation the material can handle.
Physicochemical Mechanism of Action
Tensile strength is a measure of a material's mechanical hardness and its ability to withstand stress. It describes the maximum force per unit area that can be applied before the material suddenly fails.
Metallurgical Relevance & Welding Risks
In welding, the tensile strength of the base material affects the quality and safety of the joint. Too low a tensile strength can lead to cracks or fractures, while too high a value makes the material more ductile and may lead to hot cracking. It is crucial that the weld metal has the same or higher tensile strength than the base material.
Workshop Practice & Action Instructions
To ensure the tensile strength of a material, always know the specific properties of the workpiece before welding. For metals like steel, it is important that the weld metal has a higher tensile strength than the base metal. This can be achieved by selecting an appropriate welding process and the right parameters (temperature, voltage). In highly stressed applications, it is especially important that the tensile strength of the weld joint exceeds that of the original material.