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TUBE-COUPLER SYSTEM
Universal system for temporary installations
and structures

The tube-coupler system finds its congenial application when high strength performances combined with great building flexibility are required. The mechanical properties of the tube Marcegaglia make it suitable for the most fatiguing tasks; the couplers are manufactured by cold forming, and they are coated then against corrosion by means of tropicalization. Their tightening is ensured by special T-bolts.

Tube-coupler system: couplers
COUPLER MATERIALSteel grade S355MC
UNI EN 10149-1

Cold formed

High resistance and ductility

4.75 mm thickness

PROTECTIONTropicalization: Hot dip galvanizing, passivation

Min. coating thickness 8 micron

CHARACTERISTICSRight angle couplers tested
to UNI-EN74, EN-39, Class B; swivel couplers tested to UNI-EN74, EN-39, Class A

Live load allowance:
1100 daN (gathered
from 5% fractile value)

Tensile strength: 430÷550 N/mm2, steel grade S355MC

Yield point: Steel grade
S355MC 355 N/mm2

Elongation:
Steel grade S355MC 23%   

Tube-coupler system: tubing
MATERIALSteel grades S235JRH and S355JOH
PROTECTIONPainting:
minimum durability tested to
ASTM D 2247-87
moist-room test

Hot dip galvanizing:
guaranteed min. coating thickness 55 micron (mean value)

Sendzimir galvanizing: guaranteed min. coating thickness 15 micron (mean value)

DIMENSIONSOutside diameter: 48,3 mm

Nominal thickness: 3,2 mm

Section: 4,53 cm2

Moment of inertia: 11,59 cm2

Section modulus: 4,80 cm3

Radium of gyration: 1,60 cm

Available tube sizes:
6,0 m | 5,4 m | 5,0 m | 4,5 m
4,0 m | 3,6 m | 3,25 m | 3,0 m
2,75 m | 2,5 m | 2,25 m | 2,0 m
1,8 m | 1,5 m | 1,25 m | 1,2 m
1,0 m | 0,9 m | 0,75 m | 0,6 m
0,5 m | 0,4 m

Tube-coupler system – Components

Manufacturing standards

• Autorizzazione Ministeriale n.23287
  del 24/02/1973 e successive estensioni

• UNI EN 74, EN 39

• D.P.R. 07/01/56 n. 164

• Disciplinare ACAI sul marchio SQ

 

MARCEGAGLIA ROMANIA
DN 59 km 8+550 m stânga,
Parcul Industrial Incontro
307221 Chişoda, Timiş - România
phone +40 . 356 461 461
fax +40 . 356 461 460
timisoara@marcegaglia.com

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