MARCEGAGLIA construction equipment division

Scaffolds - 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.

Couplers

Coupler material
• Steel grade S355MC UNI EN 10149-1
• Cold formed
• High resistance and ductility
• 4.75 mm thickness


Protection
• Tropicalization: Hot dip galvanizing, passivation
• Min. coating thickness 8 micron


Characteristics
• Right 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/mmsq, steel grade S355MC
• Yield point: Steel grade S355MC 355 N/mmsq
• Elongation: Steel grade S355MC 23%

Tubing

Material
• Steel grades S235JRH and S355JOH


Protection
• Hot dip galvanizing: guaranteed min. coating thickness 55 micron (mean value)
• Sendzimir galvanizing: guaranteed min. coating thickness 15 micron (mean value)
• Painting: minimum durability tested to ASTM D 2247-87 moist-room test


Dimensions
• Outside diameter: 48,3 mm
• Nominal thickness: 3,2 mm
• Section: 4,53 cmsq
• Moment of inertia: 11,59 cmsq
• Section modulus: 4,80 cm3
• Radium of gyration: 1,60 cm
• Availabletube 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

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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

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Scaffolds - Tube-coupler system
Scaffolds - Tube-coupler system
Scaffolds - Tube-coupler system
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