Metals Testing

Metals testing is of great significance around the world, as metals are key materials for construction and will continue to be in the future. A high percentage of steel materials can be recycled many times over and are therefore considered sustainable. Knowledge of their characteristic material data is essential for designers and end users. The material data is obtained from mechanical-technological materials testing, whereby metal testing machines load the materials until they fail. Testing machines from the HST ensure reproducible and reliable test results. This is based on internationally standardized metal testing methods in accordance with ISO standards and ASTM standards.

Metal standards are important when it comes to consistency and reproducibility of results obtained from mechanical metals testing. They ensure that test methods are standardized and reproducible, so that the mechanical properties of these metals can be reliably evaluated. This is critical for quality assurance, research and development, material selection and design calculation purposes in many industries, including automotive, aerospace, construction, and more.

The most important standards for mechanical metals testing include:

ASTM E8 / ISO 6892-1: these standards establish the test methods for tensile strength, yield strength, strain and reduction of the cross-sectional area of metals. They define the procedure for tensile tests on standardized metal specimens at room temperature and enable the determination of important mechanical properties. The ASTM E21 / ISO 6892-2 standards define the tensile test on metals at high temperatures.

ASTM E23 / ISO 148-1: these standards cover the Charpy impact test method for metals. The test measures the strength and resistance of a material when subjected to impact loads.

ASTM E399 / ISO 12135:these standards establish the method for determination of the crack initiation and crack growth resistance properties of metals.

Hardness tests on metals are described in standards ISO 6508 / ASTM E18 (Rockwell), ISO 6507 / ASTM E384 (Vickers), ASTM E92 (Vickers & Knoop) and ISO 6506, ASTM E10 (Brinell).