Document Details
Name of Department/Committee : MTD 03
Document Number : MTD 03 ( 25817)
Document Title [English] : Metallic materials Rockwell hardness testPart 2: Verification and calibration of testing machines and indenters
Document Title [Hindi] : धात्विक सामग्री - रॉकवेल कठोरता परीक्षण भाग 2: परीक्षण मशीनों और इंडेंटर्स का सत्यापन एवं अंशशोधन
Document Type : Revision
Language : English
Priority : 3
ICS Code : 77.040.10
Date of Project Approval : 17-05-2024
Standards to be Revised :
Sl.No. Is No & Year
1 IS 1586 : Part 2: 2018
Standards to be Superseded :
Sl.No. Is No & Year
1 IS 1586 : Part 2: 2018

Classification Details
Group : Metals, Alloys and Metal Products (including Steel Products)
Sub Group : Heat treatment, metallography and testing
Sub Sub Group : Methods of mechanical testing of metals
Aspects : Methods of tests
Risk : None
Certification : Not Certifiable
Short Commom Man's Title :
ITCHS Code :
Ministry :
  • Ministry of Steel
Sustainable development Goals :
Degree of Equivalence : Identical under dual numbering
Identical/Equivalent Standards : ISO 6508-2 : 2023
Organization Type: ISO

Sl.No. Synosis Points
1 This document specifies two separate methods of verification of testing machines (direct and indirect) for determining Rockwell hardness in accordance with ISO 6508-1, together with a method for verifying Rockwell hardness indenters.
2 The direct verification method is used to determine whether the main parameters associated with the machine function, such as applied force, depth measurement, and testing cycle timing, fall within specified tolerances. The indirect verification method uses a number of calibrated reference hardness blocks to determine how well the machine can measure a material of known hardness.
3 This document is applicable to stationary and portable hardness testing machines. Attention is drawn to the fact that the use of tungsten carbide composite for ball indenters is considered to be the standard type of Rockwell indenter ball.

Timeline Details

S.No. P-Draft
Completion Date
Completion Date
Completion Date
Completion Date(Gazette)
Entered By Entered On
1 06-06-2024 06-11-2024 21-01-2025 05-06-2025 Mr. HAWELIKAR DUSHYANT SATYAPREM 06-06-2024
Stage Date of Occurence Remarks Circulated to Files
1 Generation of Document Number 17-05-2024 -------
2 P-Draft Waived 10-06-2024 ISO Adoption -------
3 WC Draft 10-06-2024 Duration : 30 Days
Submitted for HOD approval
4 WC Draft 10-06-2024 WC approved by HOD
MTDC   -------