UNI |
Italian National Standards Institute |
|
|
|
Via Battistotti
Sassi, 11/B |
|
20133 Milano |
|
Italy |
|
Tel (39) 2 70 02
41 |
|
Fax (39) 2 70 10
61 49 |
|
Web site:
http://www.unicei.it/uni |
|
|
|
|
663 |
Seamless unalloyed
steel tubes - plain tubes for general service - quality, specifications and
testing |
5462 |
Seamless steel tubes
- tubes for boilers, appliances and piping for high-pressure,
high-temperature heating |
|
systems - quality,
specifications and testing |
5745 |
Hot dip zinc coating
of steel tubes - specifications and testing |
5949 |
Low temperature
service |
6125 |
Conical gas threads
for cable conduit tubes and relative fittings for explosion-proof electrical
equipment (AD- |
|
PE). (ICS code:
21.040.30) |
6363 |
Seamless and welded
steel tubes for water pipes |
6904 |
Seamless tubes of
special alloyed corrosion and heat resisting stainless tubes |
7091 |
Welded unalloyed
steel tubes - plain tubes for general service |
7287 |
Plain end seamless
tubes of basic unalloyed steel |
7288 |
Plain end non alloy
steel welded tubes (ICS code: 23.040.10) |
7683 |
Cable conduit tubes
and threaded fittings for explosion-proof electrical equipment - seamless
and welded |
|
tubes of unalloyed,
zinc-coated steel |
7684 |
Cable conduit tubes
and threaded fittings for explosion-proof electrical equipment - zinc-coated
or cadmium- |
|
coated unalloyed
steel sleeves |
7729 |
Plain end unalloyed
steel seamless tubes of quality for mechanical applications |
7810 |
Cold formed, flat
steel products for metallic structures - hollow sections - quality,
specifications and testing |
7811 |
Cold formed steel
products for metallic structures - circular hollow sections - dimensions and
properties |
7812 |
Cold formed steel
products for metallic structures - square hollow sections - dimensions and
properties |
7813 |
Cold formed steel
products for metallic structures - rectangular hollow sections - dimensions
and properties |
7946 |
Plain end welded
steel precision tubes (ICS code: 23.040.10) |
7947 |
Plain end welded
externally calibrated, precision steel tubes |
8488 |
Steel tubes for
pipelines - petroleum and natural gas industries |
8863 |
Unalloyed steel
seamless and welded tubes suitable for screwing in accordance with UNI ISO
7.1 |
8913 |
Welded steel tubes
for the automotive industry (ICS code: 77.140.75) |
9099 |
Steel tubes used for
underground or underwater piping. Extruded external polyethylene coating.
(ICS code: |
|
77.140.75) |
10191 |
External
fusion-bonded polyethylene coating - tubular steel products used for buried
or submerged piping |
ISO 7.1 |
Pipe threads where
pressure-tight joints are made on the threads - dimensions, tolerances and
designation |
|
|