Table of Contents

1 -  AS 1733-1976 METHODS FOR THE DETERMINATION OF GRAIN SIZE IN METALS
4 -  PREFACE
4 -  CONTENTS
5 -  SECTION 1. SCOPE AND APPLICATION
5 -  1.1 SCOPE.
5 -  1.2 APPLICATION.
5 -  SECTION 2. GENERAL PROCEDURES FOR METHODS OF GRAIN SIZE DETERMINATION
5 -  2.1 SCOPE OF SECTION.
5 -  2.2 GRAIN SIZE NUMBER.
5 -  2.3 ESTIMATION OF GRAIN SIZE.
5 -  2.3.1 General.
5 -  2.3.2 Accuracy of Equipment.
5 -  2.4 COMPARISON METHOD.
5 -  2.4.1 Method.
5 -  2.4.2 Alternative Magnification.
6 -  2.5 PLANIMETRIC METHOD.
6 -  2.6 INTERCEPT METHOD.
9 -  SECTION 3. DETERMINATION OF AUSTENITE GRAIN SIZE IN STEELS
9 -  3.1 SCOPE OF SECTION.
9 -  3.2 MICROGRAPHIC METHODS.
9 -  3.2.1 Selection of Method.
9 -  3.2.2 McQuaid-Ehn (Carburization) Method.
9 -  3.2.3 Pro-eutectoid Ferrite Method.
9 -  3.2.4 Martensitic Method.
9 -  3.2.5 Gradient Quench Method.
10 -  3.2.6 Pro-eutectoid Cementite Method.
10 -  3.2.7 Oxidation Method.
10 -  3.2.8 Determination of Austenite Grain Size in Austenitic Stainless Steels.
10 -  3.3 TEST REPORT.
11 -  SECTION 4. DETERMINATION OF GRAIN SIZE IN METALS AND ALLOYS
11 -  4.1 SCOPE OF SECTION.
11 -  4.2 LIMITATIONS ON PROCEDURES.
11 -  4.3 MICROGRAPHIC METHODS.
11 -  4.4 TEST REPORT.
12 -  APPENDIX A - EXPLANATORY NOTES ON SPECIFYING AUSTENITEGRAIN SIZE LIMITS FOR STEEL
12 -  APPENDIX B - ETCHING REAGENTS
12 -  B1 GENERAL.
12 -  B2 ETCHANTS FOR OUTLINING PRIOR AUSTENITE GRAINS IN STEEL.
12 -  B3 ETCHANTS FOR GENERAL STRUCTURE IN ALUMINIUM AND ITS ALLOYS.
12 -  B4 ETCHANTS FOR GENERAL STRUCTURE IN COPPER AND ITS ALLOYS.
12 -  B5 ETCHANTS FOR LEAD BASE.
12 -  B6 ETCHANTS FOR MOLYBDENUM BASE.
12 -  B7 ETCHANT FOR PURE NICKEL AND HIGH NICKEL ALLOYS.
13 -  APPENDIX C - STANDARD GRAIN SIZE CHARTS

Abstract

In separate sections covers general procedures for determining grain size in metals and alloys by estimation of grain size using the comparison method and by calculation of grain size number using the intercept and planimetric methods, specific procedures for austenitic grain size in steels by a range of micrographic methods, and specific procedures for metals and alloys consisting principally of a single phase. Appendices provide explanatory notes on specifying austenitic grain size limits for steel, list etching reagents, and show the standard grain size charts for untwinned grains (flat etch), twinned grain (flat etch), and heavily twinned grains (contrast etch).
RECONFIRMATION NOTICE
Major stakeholders of this publication have reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 29 August 2018.

Scope

This standard describes methods for the determination of the grain size in metals and alloys.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 14/09/2018. This standard has been reconfirmed in Australia in 2018 and remains current in New Zealand. Reconfirmation Notice 14/09/2018
Pages
ISBN
Committee	MT-008
Supersedes	AS G13-1968