BS ISO 17804:2020
$167.15
Founding. Ausferritic spheroidal graphite cast irons. Classification
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 44 |
This document defines the grades and the corresponding requirements for ausferritic spheroidal graphite cast irons.
This document specifies five grades of ausferritic spheroidal graphite cast iron by a classification based on mechanical properties determined on machined test pieces prepared from:
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separately cast samples, side-by-side cast or cast-on samples;
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samples cut from a casting.
This document also specifies two grades by a classification as a function of hardness.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Designation |
| 11 | 5 Order information 6 Manufacture 7 Requirements 7.1 General 7.2 Test pieces machined from cast samples 7.2.1 General |
| 12 | 7.2.2 Impact test |
| 13 | 7.3 Test pieces machined from samples cut from a casting 7.4 Hardness 7.5 Graphite structure 7.6 Matrix structure 8 Sampling 8.1 General |
| 14 | 8.2 Cast samples 8.2.1 Size of cast samples 8.2.2 Frequency and number of tests |
| 15 | 8.2.3 Separately cast samples |
| 17 | 8.2.4 Side-by-side cast samples |
| 18 | 8.2.5 Cast-on samples |
| 20 | 8.2.6 Test pieces machined from cast samples 8.3 Samples cut from a casting |
| 21 | 8.4 Formation of test units and number of tests 8.4.1 General 8.4.2 Examples of test units 8.4.3 Number of tests per test unit 9 Test methods 9.1 Tensile test |
| 22 | 9.2 Impact test 9.3 Hardness test |
| 23 | 9.4 Graphite structure examination 10 Retests 10.1 Need for retesting 10.2 Test validity 10.3 Nonconforming test results 10.4 Heat treatment of samples and castings |
| 24 | 11 Additional information |
| 25 | Annex A (normative) Abrasion-resistant grades of ausferritic spheroidal graphite cast iron |
| 27 | Annex B (normative) Minimum elongation values for a test piece with original gauge length Lo = 4 × d |
| 29 | Annex C (informative) Guidance values for Brinell hardness |
| 30 | Annex D (informative) Procedure for the determination of the hardness range |
| 32 | Annex E (informative) Guidance values for tensile strength and elongation after fracture for test pieces machined from samples cut from a casting[4] |
| 33 | Annex F (informative) Unnotched impact test |
| 35 | Annex G (informative) Additional information on mechanical and physical properties |
| 39 | Annex H (informative) Nodularity |
| 40 | Annex I (informative) Sectioning procedure for cast samples |
| 41 | Annex J (informative) Cross-references of similar grades of ausferritic spheroidal graphite cast iron |
| 42 | Bibliography |
