Tensile Strength

Verified by Rachel Mayfield, Supply Chain Analyst - April 2026

Tensile Strength is the maximum stress a material can withstand while being stretched or pulled before breaking, measured in mpa. Understanding Tensile Strength involves knowing its practical applications in engineering. It's important for selecting materials that must endure mechanical loads without failing, such as in the construction of bridges and buildings. For example, when choosing steel cables for suspension bridges, engineers rely on tensile strength to ensure they can support heavy loads over long spans. Relevant standards provide benchmarks for Tensile Strength. ISO 6892-1:2019 sets out test methods for determining the mechanical properties of sheet and strip metals, including tensile strength. BS EN 10002-1 specifies testing machines to measure this property accurately. These standards help engineers compare materials under uniform conditions. Common values vary widely depending on the material. For instance, A2-70 stainless steel has a typical tensile strength of around 800 MPa. In contrast, EN8 carbon steel can range from 590 to 830 MPa, making it suitable for various applications like bolts and shafts. When selecting engineering components, Tensile Strength informs material choice based on expected stresses. For instance, a workshop owner choosing fasteners will opt for A2-70 stainless if corrosion resistance is critical, despite its lower tensile strength compared to carbon steel. Conversely, when assembling heavy machinery where weight isn't an issue but extreme forces are common, EN8 carbon steel might be preferred due to its higher strength. Understanding Tensile Strength also aids in assessing safety factors and designing components that won't fail under operational conditions. For example, a procurement manager selecting bolts for offshore platforms will need to ensure the selected material meets stringent marine environment requirements while providing sufficient tensile strength to withstand harsh sea conditions. This involves consulting industry bodies like CBM (Construction Boilers Manufacturers) or BIAFD (British Industrial Asbestos Fibre Discs Association), which provide guidance on suitable materials and their properties. In summary, Tensile Strength is a fundamental property engineers rely on for selecting strong components that can handle the mechanical stresses they'll encounter in real-world applications.