ONORM EN 1561 : 2011

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
    3.1 Grey cast iron
    3.2 Relative hardness
    3.3 Relevant wall thickness
4 Designation
5 Order information
6 Manufacture
7 Requirements
    7.1 Mechanical properties
    7.2 Tensile properties
    7.3 Hardness properties
8 Sampling
    8.1 General
    8.2 Tensile Test
    8.3 Hardness test
9 Test methods
    9.1 Tensile tests
    9.2 Brinell hardness test
10 Retests
Annexes
A (informative) Additional information on mechanical and
    physical properties in addition to that given in
    tables 1 and 2
B (informative) Additional information on the relationship
    between hardness and tensile strength
C (informative) Additional information on the relationship
    between tensile strength, hardness and wall thickness of
    grey iron castings
D (informative) Bibliography

Defines properties of unalloyed and low-alloyed grey cast iron for castings, manufactured in sand moulds, or moulds having comparable thermal behaviour. Not applicable to grey cast iron for pipes and fittings.