GN 990 Construction tubes Aluminium, for tube clamp connectors


GN 990 Construction tubes, Aluminium Square&#160;s<sub>1</sub>&#160;(Aluminum): V 30
Square s1 (Aluminum): V 30
GN 990 Construction tubes, Aluminium Square&#160;s<sub>1</sub>&#160;(Aluminum): V 30 GN 990 Construction tubes, Aluminium Diameter&#160;d<sub>1</sub>&#160;(Aluminum): D 30

Product description


Construction tubes GN 990 can be supplied in any length up to 3000 mm.

The tolerances specified for the outside diameter of the round construction tubes comply with the requirements for split mono-block connector clamps. Otherwise the tolerances comply with DIN 2391, DIN 2395 and DIN 2462.

Two-piece connector clamps allow larger tolerances on construction tubes.


anodized, natural colorEL

Sawed cross sections deburred blank, i.e. not surface treated.


Technical drawing

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GN 990 Construction tubes, Aluminium sketch

Article options / Table

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Length l ±0,5 mmd2w1s2w2
D 10 ±0.1V 10*71,571,5
D 12 ±0.1V 12*91,591,5
D 14 ±0.1-*111,5--
D 15 ±0.1-*121,5--
D 16 ±0.1V 16*131,5131,5
D 18 ±0.1-*151,5--
D 20 ±0.1V 20*162162
D 25 ±0.1V 25*212212
D 30 ±0.1V 30*262262
D 35 ±0.15-*312--
D 40 ±0.15V 40*343343
D 50 ±0.2V 50*443443
D 60 ±0.2-*524--
* available in all lengths from 50 to 3000 mm (in 1 mm steps)

Build & Price



Diameter d1 (Aluminum)
Square s1 (Aluminum)
Length l
Please insert desired Length l
(50 - 3000)

Selected Part (How to order)

Total (net)
plus VAT 0,61 €
gross 3,81 €
In stock
incl. price for sawing and deburring: 2,05 €
Weight: 0,005 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 Euro -> 10 % discount
from 275,00 Euro -> 20 % discount
from 375,00 Euro -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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