EN ISO 3325:2026 PDF

Overview

EN ISO 3325:2026 establishes a standardized method for determining the transverse rupture strength of sintered metal materials, excluding hardmetals. Published by CEN and identical to ISO 3325:2026, this international standard offers a consistent approach for testing mechanical properties of sintered metals, which is crucial in quality control and materials development. The method is suitable for materials with negligible ductility and ensures that the results are reliable for both treated and untreated, as well as sized or coined, sintered metal materials.

Key Topics

• Scope and Purpose

  • Applies to sintered metal materials except for hardmetals.
  • Suitable for materials with uniform hardness and negligible ductility (permanent deformation under 0.5 mm during testing).
  • Facilitates direct comparison of sintered strength between batches or against reference materials.

• Testing Method

  • Involves breaking a bar-shaped test piece supported on two cylinders by applying a load at the midpoint.
  • Provides clear instructions on specimen dimensioning and placement for repeatable results.
  • Specifies the requirements for test equipment and procedures, enhancing accuracy and repeatability.

• Measurement and Reporting

  • Outlines precise measurement of specimen dimensions at the midpoint.
  • Sets standards for load application rate, specimen positioning, and data recording.
  • Requires reporting of calculations and test conditions, enabling traceability and comparability.

Applications

EN ISO 3325:2026 is widely used in industries relying on powder metallurgy and sintered components, including automotive, aerospace, tooling, and consumer goods. Practical uses include:

• Quality Control

  • Assures consistent strength in sintered products by enabling batch-to-batch comparisons.
  • Detects deviations from reference materials, helping to maintain product reliability.

• Material Development

  • Assesses the effects of process variables (e.g., heat treatment, sizing, coining) on transverse rupture strength.
  • Aids in the selection and optimization of metal powders for new component designs.

• Supplier Assessment

  • Enables evaluation of different powder suppliers based on standard test results, supporting procurement decisions.

• Research and Certification

  • Provides a solid basis for academic or industrial research on the mechanical properties of sintered metals.
  • Ensures compliance with international standards, simplifying certification processes.

Related Standards

• ISO 2740 - Sintered metal materials, excluding hardmetals - Determination of hardness and porosity
• ISO 3953 - Powder metallurgy - Determination of mass of a cubic centimetre of free-flowing metal powders
• EN 10002-1 - Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature

Integrating EN ISO 3325:2026 into your testing protocols ensures conformance to internationally recognized best practices for evaluating the transverse rupture strength of sintered metal materials. This standard is an essential reference for manufacturers, material scientists, and quality assurance professionals in the powder metallurgy sector.

For further guidance, always consult the latest official publication from ISO or your national standards body.