ISO 6507-4:2018

Overview

ISO 6507-4:2018 - part of the ISO 6507 series - provides standardized tables of Vickers hardness values for metallic materials. The tables are intended for use with Vickers hardness tests carried out in accordance with ISO 6507-1 (Test method). This second edition (2018) replaces the 2005 edition and contains calculated HV values derived from the Vickers hardness formula specified in ISO 6507-1.

Key topics and technical scope

• Purpose: Supply ready-made Vickers hardness (HV) lookup tables to support tests performed per ISO 6507-1.
• Content: Three main tables cover different test-force ranges:
  • Table 1: range < HV 0,2 (micro-indentation region)
  • Table 2: range HV 0,2 to HV 3
  • Table 3: range HV 5 to HV 100
• Calculation basis: All entries are calculated from the Vickers hardness formula defined in ISO 6507-1; the document itself does not redefine the test method or the formula.
• Normative reference: ISO 6507-1 is referenced as a normative document; tests must follow that part for correct application of these tables.
• Document attributes: No additional terms and definitions are listed in the standard; users are directed to ISO/IEC terminological resources as needed.

Practical applications and users

ISO 6507-4 is useful wherever consistent, traceable Vickers hardness reporting is required:

• Testing laboratories performing micro and macro Vickers hardness tests (HV values lookup and verification).
• Quality control and production teams in metallurgy, heat treatment, automotive, aerospace and heavy industry using hardness as a material acceptance criterion.
• Materials research and development groups needing standardized HV reference values for comparative studies.
• Metrology and calibration bodies ensuring hardness test results conform to international practice.

Using the tables saves calculation time, supports consistent reporting of HV values across organizations, and helps ensure comparability of results when combined with ISO 6507-1 test methods.

Related standards

• ISO 6507-1 - Metallic materials - Vickers hardness test - Part 1: Test method (normative reference for applying the tables).
• Other parts of the ISO 6507 series (see the ISO website for the complete list) cover test machines, procedures and additional guidance.

Keywords: ISO 6507-4, Vickers hardness test, Vickers hardness tables, HV values, ISO 6507-1, metallic materials, hardness testing, microhardness, testing laboratories, quality control.