1 - AS 2027-1985 IRON CASTINGS - ABRASION-RESISTANT WHITE IRON
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 REFERENCED DOCUMENTS.
5 - 3 DESIGNATION.
5 - 3.1 General.
5 - 3.2 White iron specified by hardness.
5 - 3.3 Nickel-chromium types.
5 - 3.4 High chromium types.
5 - 4 DEFINITION.
5 - 5 CHEMICAL COMPOSITION.
5 - 5.1 General.
6 - 5.2 Analysis sample.
6 - 6 FREEDOM FROM DEFECTS.
6 - 7 CASTING DIMENSIONS.
6 - 8 MICROSTRUCTURAL EXAMINATION.
6 - 9 HARDNESS.
6 - 9.1 Provision and preparation of test sample.
6 - 9.2 Hardness test.
6 - 9.3 White iron specified by hardness.
6 - 9.4 Nickel-chromium types.
6 - 9.5 High chromium types.
6 - 10 INTERPRETATION OF SPECIFIED LIMITING VALUES
7 - APPENDIX A - PURCHASING GUIDELINES
7 - A1 INTRODUCTION.
7 - A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER.
7 - A3 PATTERNS, DRAWINGS AND SAMPLES OF THE CASTING.
7 - A3.1 New patterns.
7 - A3.2 Existing patterns and equipment.
8 - A3.3 Sample casting and/or drawing.
8 - A4 IDENTIFICATION.
8 - A5 DRESSING AND FETTLING.
8 - A6 RECTIFICATION OF DEFECTS.
8 - A7 DESIGNATION.
9 - A8 MICROSTRUCTURE.
9 - A8.1 Microstructural samples.
9 - A8.2 Chemical composition.
9 - A9 MECHANICAL TESTS.
9 - A9.1 Provision of test samples.
9 - A9.2 Hardness.
9 - A9.3 Retests.
9 - A9.4 Independent tests.
9 - A10 CERTIFICATES.
9 - A10.1 Certificates of compliance.
9 - A10.2 Test certificates.
11 - APPENDIX B - HEAT TREATMENT AND MICROSTRUCTURE OF ABRASION-RESISTANT WHITE IRON CASTINGS
11 - B1 WHITE IRON SPECIFIED BY HARDNESS.
11 - B1.1 Heat treatment.
11 - B1.2 Microstructure.
11 - B2 NICKEL-CHROMIUM TYPES.
11 - B2.1 Heat treatment.
11 - B2.2 Microstructure
11 - B3 HIGH CHROMIUM TYPES.
11 - B3.1 Heat treatment.
12 - B3.2 Microstructure.
13 - APPENDIX C - NICKEL-CHROMIUM TYPES-RELATIONSHIP BETWEEN SECTION SIZE AND CHEMICAL COMPOSITION*
14 - APPENDIX D - EXAMPLES OF INTERPRETATION OF SPECIFIED LIMITING VALUES IN ACCORDANCE WITH THE ROUNDING METHOD