NEN EN 1564 : 2011

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 the grades and the corresponding requirements for ausferritic spheroidal graphite cast irons. Also specifies five grades of ausferritic spheroidal graphite cast iron by a classification based on mechanical properties measured on machined test pieces prepared from cast samples.