SN EN 1564 : 2012

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
    3.1 Austempered ductile cast iron
    3.2 Graphite spheroidizing treatment
    3.3 Austenite transformation treatment
4 Designation
5 Order information
6 Manufacture
7 Requirements
    7.1 Test pieces machined from separately cast
          samples
    7.2 Test pieces machined from cast-on samples
    7.3 Test pieces machined from samples cut from a
          casting
8 Sampling
    8.1 General
    8.2 Separately cast samples
    8.3 Cast-on samples
    8.4 Samples cut from a casting
9 Test methods
    9.1 Test methods
    9.2 Impact test
    9.3 Hardness test
10 Retests
    10.1 Need for retests
    10.2 Procedure for retests
11 Re-heat-treatment
Figures
1 Separately cast samples (option 1)
2 Separately cast samples (option 2)
3 Separately cast samples (option 3)
4 Tensile test piece
5 Charpy-notched impact test piece
6 Cast-on sample
Annexes
A (normative) Information on hardness
B (informative) Bibliography
C (normative) Manufacture
D (normative) Impact resistance
E (normative) Formation of test units and number of tests

Specifies grades and corresponding properties of austempered ductile cast irons. Defines a classification based on mechanical properties measured on machined test pieces made from separately cast samples, cast-on samples, or samples cut from a casting. Does not cover technical delivery conditions for austempered ductile cast iron castings.