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AS
AS 2074-1982

AS 2074-1982

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Steel castings

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

30-06-2017

Superseded by

AS 2074-2003

Language(s)

English

Published date

01-01-1982

Publisher

Standards Australia

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Hardcopy - English
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1 - AS 2074-1982 STEEL CASTINGS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1. SCOPE AND GENERAL
7 - 1.1 SCOPE.
7 - 1.2 APPLICATION.
7 - 1.3 REFERENCED DOCUMENTS.
7 - 1.4 DESIGNATION OF GRADE.
8 - 1.5 DEFINITIONS.
8 - 1.5.1 Certified material for elevated temperature properties
8 - 1.5.2 Elevated temperature tested material
8 - 1.5.3 Mass effect
8 - 1.5.4 Ruling section
8 - 1.5.5 Test bar
8 - 1.5.6 Test piece
8 - 1.6 CHEMICAL COMPOSITION.
8 - 1.6.1 General.
8 - 1.6.2 Residual Elements.
8 - 1.6.3 Cast Analysis.
8 - 1.7 FETTLING AND DRESSING.
8 - 1.8 FREEDOM FROM DEFECTS.
8 - 1.9 HEAT TREATMENT.
8 - 1.9.1 General.
8 - 1.9.2 Annealing Lugs
8 - 1.10 MASS EFFECT.
8 - 1.11 MECHANICAL PROPERTIES.
8 - 1.12 PROVISION AND PREPARATION OF TEST BARS.
8 - 1.12.1 General.
8 - 1.12.2 Heat Treatment of Separate Test Bars.
9 - 1.12.3 Heat Treatment of Attached Test Bars.
9 - 1.13 PREPARATION OF TEST PIECES.
9 - 1.13.1 General.
9 - 1.13.2 Tensile Test Piece.
9 - 1.13.3 Elevated Temperature Tensile Test Piece.
9 - 1.13.4 Izod Impact Test Piece.
9 - 1.13.5 Charpy V-notch Impact Test Piece.
9 - 1.13.6 Intergranular Corrosion Test Piece.
9 - 1.14 TEST REQUIREMENTS.
9 - 1.14.1 Tensile Test.
9 - 1.14.2 Elevated Temperature Tensile Test.
9 - 1.14.3 Izod Impact Test.
9 - 1.14.4 Charpy V-notch Impact Test.
9 - 1.14.5 Hardness Tests.
9 - 1.14.6 Magnetic Property Tests.
9 - 1.14.7 Intergranular Corrosion Test.
9 - 1.15 RETESTS.
9 - 1.15.1 General.
9 - 1.15.2 Failure of Mechanical Tests.
10 - 1.15.3 Failure of Low Temperature Impact Test.
10 - 1.15.4 Re-heat Treatment.
10 - 1.15.5 Acceptance.
10 - 1.16 TEST CERTIFICATE.
10 - 1.17 RECTIFICATION OF CASTINGS.
10 - 1.18 ROUNDING OF RESULTS OBTAINED BY INSPECTION AND TESTING.
10 - 1.18.1 General.
10 - 1.18.2 Tensile Properties.
11 - SECTION 2. REQUIREMENTS FOR CARBON STEEL CASTINGS
11 - 2.1 CARBONSTEEL CASTINGSFOR CASE HARDENING- GRADE AS 2074/C1.
11 - 2.1.1 Chemical Composition.
11 - 2.1.2 Heat Treatment.
11 - 2.1.3 Mechanical Properties.
12 - 2.2 CARBON STEEL CASTINGS WITH HIGH MAGNETIC PERMEABILITY- GRADE AS 2074/ C2.
12 - 2.2.1 Chemical Composition.
12 - 2.2.2 Heat Treatment.
12 - 2.2.3 Mechanical Properties.
12 - 2.2.4 Magnetic Properties.
13 - 2.3 CARBON STEEL CASTINGS FOR GENERAL PURPOSES -GRADES AS 2074/ C3, C4, C5.
13 - 2.3.1 Chemical Composition.
13 - 2.3.2 Heat Treatment.
13 - 2.3.3 Mechanical Properties.
14 - 2.4 CARBON STEEL CASTINGS FOR RESISTANCE TO WEAR AND SUITABLE FOR SURFACE HARDENING- GRADE AS 2074/ C6.
14 - 2.4.1 Chemical Composition.
14 - 2.4.2 Heat Treatment.
14 - 2.4.3 Mechanical Properties.
15 - 2.5 CARBON STEEL CASTINGS FOR PRESSURE PURPOSES -GRADE AS 2074/ C7A.
15 - 2.5.1 Chemical Composition.
15 - 2.5.2 Heat Treatment.
15 - 2.5.3 Mechanical Properties at Room Temperature.
15 - 2.5.4 Mechanical Properties at Elevated Temperature.
16 - 2.5.5 Impact Properties at Low Temperature.
17 - SECTION 3. REQUIREMENTS FOR LOW ALLOY STEEL CASTINGS
17 - 3.1 1.5% MANGANESE STEEL CASTINGS -GRADES AS 2074/L1A, L1B.
17 - 3.1.1 Chemical Composition.
17 - 3.1.2 Heat Treatment.
17 - 3.1.3 Mechanical Properties.
17 - 3.1.4 Brinell Hardness of Castings.
18 - 3.2 1% CHROMIUM STEEL FOR RESISTANCE TO ABRASION -GRADES AS 2074/ L2A, L2B.
18 - 3.2.1 Chemical Composition.
18 - 3.2.2 Heat Treatment.
18 - 3.2.3 Brinell Hardness of Castings.
19 - 3.3 FERRITIC STEEL FOR USE AT LOW TEMPERATURE-GRADE AS 2074/ L3A.
19 - 3.3.1 Chemical Composition.
19 - 3.3.2 Heat Treatment.
19 - 3.3.3 Mechanical Properties at Room Temperature.
19 - 3.3.4 Impact Properties at Low Temperature.
20 - 3.4 3% NICKEL STEEL FOR CASE HARDENING- GRADE AS 2074/L4A.
20 - 3.4.1 Chemical Composition.
20 - 3.4.2 Heat Treatment.
20 - 3.4.3 Mechanical Properties.
21 - 3.5 LOW ALLOY STEEL FOR USE AT ELEVATED TEMPERATURES -GRADES AS 2074/ L5A, L5B, L5C, L5D, L5E, L5F, L5G, L5H.
21 - 3.5.1 Chemical Composition.
22 - 3.5.2 Heat Treatment.
22 - 3.5.3 Mechanical Properties at Room Temperature.
22 - 3.5.4 Mechanical Properties at Elevated Temperature.
23 - 3.5.5 Impact Properties at Low Temperature.
24 - 3.6 ALLOY STEEL FOR HIGHER TENSILE STRENGTH- GRADES AS 2074/ L6, L6A, L6B, L6C.
24 - 3.6.1 Chemical Composition.
24 - 3.6.2 Heat Treatment.
24 - 3.6.3 Mechanical Properties.
24 - 3.6.4 Brinell Hardness of Castings.
24 - 3.6.5 Reduction of Area.
25 - SECTION 4. REQUIREMENTS FOR HIGH ALLOY STEEL CASTINGS
25 - 4.1 AUSTENITIC MANGANESE STEELCASTINGS -GRADES AS 2074/ H1A, H1B.
25 - 4.1.1 Chemical Composition.
25 - 4.1.2 Heat Treatment.
26 - 4.2 9% CHROMIUM- MOLYBDENUM STEEL CASTINGS -GRADE AS 2074/ H2A.
26 - 4.2.1 Chemical Composition.
26 - 4.2.2 Heat Treatment.
26 - 4.2.3 Mechanical Properties.
26 - 4.2.4 Brinell Hardness of Castings.
27 - 4.3 13% CHROMIUM STEEL CASTINGS FOR RESISTANCE TO CORROSION- GRADES AS 2074/ H3A, H3B, H3C.
27 - 4.3.1 Chemical Composition.
27 - 4.3.2 Heat Treatment.
27 - 4.3.3 Mechanical Properties.
27 - 4.3.4 Brinell Hardness of Castings.
28 - 4.4 28% CHROMIUM STEEL CASTINGS -GRADES AS 2074/H4A, H4B.
28 - 4.4.1 Chemical Composition.
28 - 4.4.2 Heat Treatment.
29 - 4.5 AUSTENITIC CHROMIUM-NICKEL STEEL CASTINGS FOR RESISTANCE TO CORROSION- GRADES AS 2074/ H5A, H5B, H5C.
29 - 4.5.1 Chemical Composition.
29 - 4.5.2 Heat Treatment.
29 - 4.5.3 Mechanical Properties.
29 - 4.5.4 Impact Properties at Low Temperature.
29 - 4.5.5 Non-magnetic Castings.
29 - 4.5.6 Intergranular Corrosion Test.
30 - 4.6 AUSTENITIC CHROMIUM-NICKEL-MOLYBDENUMSTEEL CASTINGS FOR RESISTANCE TO CORROSION -GRADES AS 2074/ H6A, H6B, H6C.
30 - 4.6.1 Chemical Composition.
30 - 4.6.2 Heat Treatment.
30 - 4.6.3 Mechanical Properties.
30 - 4.6.4 Non-magnetic Castings.
30 - 4.6.5 Intergranular Corrosion Test.
31 - 4.7 PRECIPITATION HARDENING STEEL CASTINGS FOR RESISTANCE TO CORROSION- GRADES AS 2074/ H7A, H7B.
31 - 4.7.1 Chemical Composition.
31 - 4.7.2 Heat Treatment.
31 - 4.7.3 Mechanical Properties.
31 - 4.7.4 Brinell Hardness of Castings.
33 - 4.8 ALLOY STEEL CASTINGS FOR USE AT HIGH TEMPERATURE - GRADES AS 2074/ H8A, H8B, H8C, H8E, H8F, H8G, H8H, H8J.
33 - 4.8.1 Chemical Composition.
33 - 4.8.2 Heat Treatment.
33 - 4.8.3 Mechanical Properties.
33 - 4.8.4 Non-magnetic Castings.
33 - 4.9 AUSTENITIC CHROMIUM-NICKEL- MOLYBDENUM- COPPER STEEL CASTINGS FOR RESISTANCE TO CORROSION -GRADE AS 2074/ H9A.
33 - 4.9.1 Chemical Composition.
33 - 4.9.2 Heat Treatment.
34 - APPENDIX A - PURCHASING GUIDELINES (see Preface and Appendix B)
34 - A1 INTRODUCTION.
34 - A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
34 - A3 PATTERNS, DRAWINGS, AND SAMPLES OF THE CASTING.
34 - A3.1 New Patterns.
34 - A3.2 Existing Patterns and Equipment.
35 - A3.3 Colouring and Marking.
35 - A3.4 Sample Casting or Drawing.
35 - A4 IDENTIFICATION.
35 - A5 DRESSING AND FETTLING.
35 - A6 DEFECTS IN CASTINGS.
35 - A6.1 General.
35 - A6.2 Rectification of Defects.
35 - A7 MECHANICAL PROPERTY REQUIREMENTS.
35 - A7.1 General.
35 - A7.2 Tensile Properties.
35 - A7.3 Izod Impact Test.
35 - A7.4 Attached Test Bars.
35 - A7.5 Free-machining Grades.
35 - A8 TEST BARS.
35 - A8.1 General.
36 - A8.2 Provision of Test Bars.
36 - A8.3 Heat Treatment of Test Bars.
36 - A9 TEST REQUIREMENTS.
36 - A9.1 Tensile Test.
36 - A9.2 Retests.
36 - A9.3 Independent Tests.
36 - A10 OPTIONAL TEST REQUIREMENTS.
36 - A10.1 Hardness Test.
36 - A10.2 Charpy V-notch Impact Test.
36 - A10.3 Magnetic Requirements.
36 - A10.4 Intergranular Corrosion Test.
36 - A10.5 Non-destructive Inspection.
37 - A10.6 Pressure Tests.
37 - A11 SPECIAL OR SUPPLEMENTARY REQUIREMENTS.
37 - A11.1 Heat Treatment.
37 - A11.2 Limits of Chemical Elements.
37 - A11.3 Grades AS 2074/L6A and L6C.
37 - A11.4 Grades AS 2074/C1 and L4A.
37 - A11.5 Special Finishing.
37 - A11.6 Special Handling Requirements.
37 - A12 CERTIFICATES.
37 - A12.1 General.
37 - A12.2 Certificates of Compliance.
37 - A12.3 Test Certificates.
37 - A13 INSPECTION.
38 - APPENDIX B - STEEL CASTINGS -SELECTION OF GRADES FOR SPECIFIC APPLICATIONS
41 - APPENDIX C - ROUNDING OF RESULTS OBTAINED BY INSPECTION AND TESTING
41 - C1 ROUNDING OFF.
41 - C2 MEANING TO BE ATTACHED TO NUMERICAL VALUES OF MAXIMA AND MINIMA
42 - C3 REFERENCES.

Specifies requirements for carbon, low alloy and high alloy steel castings for pressure and general engineering purposes. Includes appendices setting out purchasing guidelines and indicating suitable grades for specific applications.

Committee
MT-001
DocumentType
Standard
ISBN
0 7262 2693 9
Pages
36
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

This standard specifies requirements for carbon, low alloy and high alloy steel castings for pressure and general engineering purposes.NOTES:1. Guidelines to purchasers on requirements that must be specified and those that must be agreed upon at the time of enquiry and/or order are given in Appendix A.2. A summary of chemical composition and tensile properties of steels included in this standard is given in Appendix B, which also provides guidance in the selection of grades for specific applications.

Under Revision See DR 02080

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AS 1228-1997 Pressure equipment - Boilers
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AS 1910-1994 Water supply - Float control valves for use in hot and cold water
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