DIN
2391-81 SEAMLESS PRECISION STEEL TUBES (DIN2391-81)
1.Field of application
This
Standard applies to seamless precision steel tubes; and, in compliance
with ISO/DIS 3304, those tube dimensions have een selectied from the
range of manufactura le tu e dimensions which are mainly used as design
elements
If
tubes having the tolerances and are produced according to the technical
conditions of deivery as specified in this Standard are to e used as
pipelines, then the dimensions specified in DIN 2448 may from time to
time be used. These tubes must be ordered according to quality grade
C.