What is BS EN ISO 898-2:2012?

BS EN ISO 898-2:2012 is a technical standard that specifies the mechanical properties of set screws, bolts, and studs made from carbon steel or alloy steel. This standard is part of the ISO 898 series, which provides guidelines for the selection and testing of fasteners.

Mechanical Properties

The standard defines various mechanical properties for set screws, bolts, and studs, including tensile strength, yield strength, elongation, and hardness. These properties are crucial for ensuring the integrity and safety of fasteners in different applications.

Tensile strength refers to the maximum load a fastener can withstand without breaking. Yield strength is the stress at which a fastener starts to deform permanently. Elongation measures the extent to which a fastener can stretch before it breaks. Hardness determines the resistance of a fastener to indentation or surface abrasion.

Testing Procedures

BS EN ISO 898-2:2012 outlines specific testing procedures that manufacturers must follow to determine the mechanical properties of set screws, bolts, and studs. These procedures include tensile testing, hardness testing, and impact testing.

Tensile testing involves applying a gradually increasing load to a fastener until it breaks. This test helps determine the tensile strength and yield strength of the fastener. Hardness testing measures the resistance of a fastener to indentation using specialized equipment.

Impact testing involves subjecting a fastener to sudden loading or impact to assess its ability to absorb energy. This test helps evaluate the toughness and durability of the fastener in real-world applications.

Importance of Compliance

Adhering to BS EN ISO 898-2:2012 is essential for manufacturers and users of set screws, bolts, and studs. Compliance ensures that the fasteners meet specific standards for quality, reliability, and safety.

By following the standard's guidelines and conducting appropriate testing, manufacturers can produce fasteners that will perform as intended in various applications. Users can have confidence in the mechanical properties of the fasteners and trust their reliability in critical tasks.

Compliance with BS EN ISO 898-2:2012 also facilitates international trade by providing a common benchmark for fastener quality across different countries and industries.