Method B (Stress Rate Control)This is the traditional method. It focuses on the rate at which load (stress) is applied to the specimen. While simpler to set up on older manual machines, it is often less precise than Method A because it does not account for the machine's own compliance or stiffness. Specimen Preparation and Geometry
is the global standard for the tensile testing of metallic materials at room temperature . It defines the mechanical properties that can be determined—such as yield strength, tensile strength, and elongation—and establishes the procedures to ensure results are comparable worldwide. 1. Scope and Objective
Elongation at Fracture: The amount the material stretched before breaking, which indicates its ductility. en iso 6892-1
The standard is relevant for virtually all product forms:
EN ISO 6892-1 harmonises the ISO 6892-1 method with European requirements (CEN endorsement). It supersedes former national standards such as DIN 50125, BS EN 10002-1, and NF A03-001. The standard is mandatory for CE marking under many European product directives (e.g., Pressure Equipment Directive 2014/68/EU, Construction Products Regulation). Method B (Stress Rate Control)This is the traditional method
Tensile testing is the most fundamental mechanical test for metals, providing essential properties: yield strength (Re), ultimate tensile strength (Rm), percentage elongation after fracture (A), and reduction of area (Z). Without a unified standard, results from different laboratories would be incomparable.
Specimens can be:
) where the deformation is measured, and gripped ends designed to transfer the load from the machine without causing premature failure in the grip region. Original Gauge Length ( cap L sub 0