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ABSTRACT
The article explores the different types of laboratory tests on steels. Mechanical tests measure the strength, deformation, hardness, and toughness of materials, while physical tests evaluate density, thermal conductivity, electrical conductivity, corrosion resistance, porosity, permeability, and more. Physico-chemical and chemical tests study the structure and reactivity of materials in the presence of different chemical substances. The tensile test allows to determine the yield strength, tensile strength, Young's modulus, and elongation at fracture of the tested material. Finally, hardness tests measure resistance to deformation by penetration with a harder material.
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Thibault FOURCADE: Engineer
INTRODUCTION
The properties of a material can be assessed by subjecting samples to stresses similar to those they will undergo in real-life situations. Mechanical tests are the most significant for understanding the behavior of a material in different stress situations, such as tensile, hardness, fatigue and impact. For each of these tests, there are standardized dimensions for the sample, as well as specific measurements to determine the material's characteristics. The tensile test is particularly important, as it measures a material's resistance to stretching until it breaks. Hardness testing, on the other hand, involves deforming the material by damaging it with a harder material, the shape and load depending on the test method used. The size of the indentation left in the material is then analyzed to determine its strength.
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KEYWORDS
steel | properties | testing
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Steel testing
Purpose of testing
Bibliography
Standards and norms
NF EN 1090, which defines the requirements for the manufacture, inspection and certification of steel and aluminum products used in construction.
NF EN ISO 6892-1, which describes the method for tensile tests on metals.
NF EN ISO 6506-1, which describes the Brinell hardness test method for metallic materials.
NF EN ISO 6507-1, which describes...
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