1 - AS 1831-1985 IRON CASTINGS - SPHEROIDAL OR NODULAR GRAPHITE CAST IRON
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 REFERENCED DOCUMENTS.
5 - 3 DESIGNATION.
5 - 4 DEFINITION.
5 - 5 FREEDOM FROM DEFECTS.
5 - 6 CASTING DIMENSIONS.
5 - 7 MICROSTRUCTURE.
5 - 7.1 Graphite.
5 - 7.2 Matrix.
5 - 8 MECHANICAL PROPERTIES.
5 - 8.1 General.
5 - 8.2 Tensile properties.
5 - 9 PROVISION AND PREPARATION OF TEST BARS FOR MECHANICAL TESTS.
5 - 9.1 General.
6 - 9.2 Casting of test bars.
6 - 10 MECHANICAL TESTS.
6 - 10.1 Defective test piece.
6 - 10.2 Tensile test.
6 - 10.3 Impact test.
6 - 10.4 Hardness test.
6 - 11 RETESTS.
6 - 12 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 Colouring and marking.
8 - A3.4 Sample casting and/or drawing.
8 - A4 IDENTIFICATION.
8 - A5 DRESSING AND FETTLING.
8 - A6 RECTIFICATION OF DEFECTS.
8 - A7 MICROSTRUCTURE.
8 - A7.1 Microstructural Test Piece.
8 - A7.2 Graphite
8 - A7.3 Matrix.
9 - A8 MECHANICAL TESTS.
9 - A8.1 Number of tests.
9 - A8.2 Casting of test bars.
9 - A8.3 Tensile test requirements.
9 - A8.4 Impact test requirements.
9 - A8.5 Hardness Requirements.
10 - A8.6 Retests.
10 - A8.7 Independent tests.
10 - A9 CERTIFICATES.
10 - A9.1 Certificates of Compliance.
10 - A9.2 Test Certificates.
10 - A10 INSPECTION.
11 - APPENDIX B - GRAPHITE IN CAST IRON*
14 - APPENDIX C - TEST BLOCK MOULD FOR MICROSTRUCTURAL SAMPLES
15 - APPENDIX D - TYPICAL TENSILE TEST BARS*
17 - APPENDIX E - EXAMPLES OF INTERPRETATION OF SPECIFIED LIMITING VALUES IN ACCORDANCE WITH THE ROUNDING METHOD