What is EN ISO 898-1:2013+A2:2015?

EN ISO 898-1:2013+A2:2015 is a technical standard that specifies the mechanical and physical properties of bolts, screws, and studs made of carbon steel or alloy steel. It covers a wide range of fasteners used in various industrial applications, such as construction, automotive, and machinery. This article aims to provide an easy-to-understand explanation of the key aspects of this standard.

The Purpose of the Standard

The primary purpose of EN ISO 898-1:2013+A2:2015 is to ensure the reliability and safety of fasteners by setting specific requirements for their mechanical properties. These properties include tensile strength, yield strength, elongation, hardness, and torque/clamp force capabilities. By complying with this standard, manufacturers can guarantee that their products meet the necessary strength and performance criteria.

Key Requirements and Test Methods

EN ISO 898-1:2013+A2:2015 establishes three classes of fasteners based on their maximum allowable stress levels: Class 4.8, Class 8.8, and Class 10.9. The standard specifies the minimum tensile and yield strengths, as well as elongation and hardness values, for each class. Additionally, it outlines the test methods for measuring these mechanical properties, ensuring consistency and accuracy in the evaluation process.

Implications and Benefits

Complying with EN ISO 898-1:2013+A2:2015 offers several benefits. Firstly, it ensures that the fasteners used in critical applications, such as structural connections, possess sufficient strength and durability to withstand the applied loads. Secondly, it facilitates interchangeability and compatibility, as fasteners from different manufacturers can be compared and relied upon to perform in a consistent manner. Lastly, the standard enhances safety by minimizing the risk of fastener failure and structural accidents.