DIN 2440 STEEL TUBES MEDIUM WEIGHT SUITABLE FOR SCREWING
1. SCOPE
This Standard applies to medium-weight tubes suitable for screwing. They are suitable for nominal pressure 2 for liquids and nominal pressure 10 for air nd non-hazardous gases.
2. Other relevant Standards
DIN 2444 Zinc coatings on steel tubes; quality standard for the hot galvanizing of steel tubes for installation purposes
DIN 2999 Part 1 Whitworth pipe threads for tubes and fittings; cylindrical internal thread and conical external
DIN 17100 Steels for general structural purposes; quality specifications
DIN 50136 Testing of metallic materials; flattenin test on tubes.
3. Dimensions, designation
Designation of a medium-weight tube suitable for screwing, nominal width 40, seamlesly gavenized(B), in manufacturing lengths:
Table 1. Threaded tube DIN 2440 – DN 40-seamless B
ecting
nomin-
al width
of the
flttings
according
to DIN
2950 and
DIN 2980
worth-
pipe
threads
according
to
DIN
2999
Part1
socket according
to DIN 2986
diameterd1
thick-
nesss
retical
screw
thread
diameter
d2
per
25.4mm
screw
thread
length
J
min
at
a
max.
screw thread
dlameter
d2
from tube end
diameter
tube
kg/m
tubekg/m
max.
min.
…
Research use only,Commercial use is prohibited.