scope:

This European standard specifies requirements for the design, material, manufacturing and testing of
pressure vessels and pressure vessel parts. The allowed materials are specific grades with an
elongation equal or less than 15% as specified in the following material standards:
. EN 1561 Founding - Grey cast irons
. EN 1563 Founding - Spheroidal graphite cast irons
. EN 13835 Founding - Austenitic cast irons
This standard is to be used in addition to the general requirements for unfired pressure vessels under
EN 13445: Unfired Pressure Vessels.
Allowed cast irons grades, corresponding design limitations and service conditions are given in Tables
4.1-1 and 4.1-2.
Special precautions are required when using cast iron with elongation equal or less than 15% to attain
the same safety level as when using cast iron with elongation higher than 15%. Service restrictions
and limitations are given in Clause 4.
Cast iron with elongation equal or less than 15% shall only be used for pressure equipment when
operational and technical advantages are dictating its use instead of the cast iron grades given in
EN13445-6.
For relationship with EU Directives, see informative annex ZA, which is an integral part of this
standard.
NOTE Requirements for the design, material, manufacturing and testing of pressure vessels and pressure vessel parts made from cast irons with elongation greater than 15% are given in EN 13445- 6.