Square tube – fiberglass

Top Glass manufactures SQUARE TUBE TRIGLASS® structural beam made in composite material (GRP – FRP – CFRP). Our beams can be reinforced with fiberglass and/or carbon and they represent one of the pultruded structural profiles made by Top Glass.
They are partially available from stock in length 6.000 mm and in grey color.
Above all these structural profiles are particularly popular in corrosive environments. They are used in galvanizing processes; chemical, petrochemical and water treatment systems. They can be also used for cooling towers; offshore installations; construction areas and the inside of underground transport system tunnels.
Furthermore they are popular in situations requiring mechanical performance combined with resistance to corrosion, insulation, lightness and elasticity. Because of their mechanical characteristics, they are used for constructing scaffolding during building renovations, deck framing and pedestrian bridges.
As a result, they offer outstanding ease of assembly and maintenance free performance compared to other materials such as wood or metal.

Top Glass is able to offer these products on request in compliance with the technical specifications of the European Standard EN 13706-E23. See our news about our TRIGLASS® High Performance profiles, specifically designed for structural applications.
Last but not least, Top Glass has developed an AQVA TRIGLASS® version which has been certified in accordance with the French ACS. Attestation de Conformité Sanitaire of 29/05/1997 and its updates. This means it is suitable for contact with water intended for human consumption and can be used for use in water treatment systems.

Square tube profile

download technical sheet

In-stock profiles are in red
Profiles available upon request are in grey
Measurement units: mm

The dimensions listed in red are in stock (subject to prior sale), while those in grey , are available upon request and can be custom produced with a variety of reinforcements, resins and colours.

SPECIFICATIONS OF IN-STOCK PROFILES

LENGTH IN STOCK: 6.000 mm

COLOUR IN STOCK: GREY

MATRIX IN STOCK: STANDARD POLYESTER

Base	Eeight	T1	T2
28,1	16,1	2	2
28,5	18,7	2	2,5
29,6	20,2	2	2,5
30	12	2	2,5
30	15	2	2,5
30	30	2,5	2,5
33,9	21	2,5	2,5
34,1	19,1	2	2
40	20	2	2,5
40,1	40,1	2	2
50	20	2,5	3
50	50	4	4
50	50	5	5
58	25	3	3
60	20	2,5	3
60	30	2,5	3
70	12	2,6	3
70	70	4	4
70	70	5	5
73	25	3	3,5
73	25	3	6,6
74	34	3	2,5
80	23	3	3
80	38	3	2,5
80	47	3	3
82	32	2,8	4
85	25	3	4
86	32	2,8	4
90	25	3	5
90	90	8	8
95	26	3	5
100	30	3	3
100	100	10	10
120	120	6	6
135	35	3,5	5
150	100	3	3
150	100	5	6
400	30	3	3
1000	40	4	3,7

MEAN PHYSICAL-MECHANICAL PROPERTIES

PROPERTY	TEST METHOD	UNIT	STANDARD PROFILES MEAN VALUE
Specific weight	ASTM D792	g/cm³	1,75 ÷ 1,9
Dielectric strength	ASTM D149	kV/mm	3 ÷ 7
Water absorption	ISO 62	%	0,4
Surface resistivity	EN 61340	Ω	10¹²
Loss factor at 50 Hz (Tg δ)	ASTM D7028	——–	0,20
Thermal class	——–	CLASS	F
Longitudinal thermal expansion coefficient	ISO 11359-2	K^-1	8÷11×10^-6
Thermal conductivity	EN 12667 / EN 12664	W/mK	0,3
Longitudinal flexural strength	ASTM D790	MPa	300 ÷ 500
Longitudinal flexural modulus	EN 13706	GPa	22 ÷ 28
Longitudinal tensile strength	ASTM D638	MPa	300 ÷ 500
Longitudinal tensile modulus	ASTM D638	GPa	22 ÷ 30
Longitudinal compression strength	ASTM D695	MPa	180 ÷ 300
Longitudinal compression modulus	ASTM D695	GPa	16 ÷ 21
Fire reaction	UL 94	CLASS	HB
Shear strength	ASTM D2344	MPa	30

NOTE

HIGHER MECHANICAL VALUES REFER TO PROFILE WITH THICKNESS OVER 4 mm
POSSIBLE UL 94 V0 FIRE REACTION WITH OR WITHOUT HALOGENS
POSSIBLE TO HAVE IN ANTISTATIC FORMULATION
POSSIBLE USE OF SPECIAL FORMULATION ON THICKNESS OVER 2,5 mm FOR HIGH FIRE REACTION AND NO TOXIC SMOKE
VINYLESTER FORMULATION FOR CHEMICAL RESISTANCE APPLICATIONS AVAILABLE

VALUES REFER TO REINFORCED PROFILES WITH FIBREGLASS IN A POLYESTER MATRIX
Tolerance for mechanical properties refers to longitudinal direction: ± 10%.
The data provided is accurate. However, Top Glass does not assume any liability as to its use.

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