FRP Pultruded Round Profile

Product Description

1. Properties of FRP pultruded profiles
A. High strength
FRP is stronger than structural steel on a pound-for pound basis. It has been used to buildings, walkway, sub-floors and platforms.
B. Light weight
FRP is 20-25% the weight of steel and 70% the weight of aluminum. FRP are easily transported, handled and lifted into place. Total structures can often be preassembled and shipped to the job site ready to installation.
C. Anti-corrosion
FRP will not rot and are impervious to a broad range of corrosive elements. This feature makes FRP a natural selection for indoor or outdoor structures in pulp and paper mills, chemical plants, water and sewage treatment plants, structural near salt water and other corrosive environments.
D. Electro-magnetic transparency
FRP are transparent to radio waves, microwaves and other electromagnetic. It is widely used to make antennas.
E. Non-conductive
FRP has low thermal/ electrical conductivity.
F. Dimensional stability
The coefficient of thermal expansion of FRP is slightly less than steel and significantly less than aluminum.
G. Aesthetics
FRP are pigmented throughout the thickness of the part and can be made to virtually any desired custom color. Special surfacing veils are also available to create special surface appearances such as wood grain, marble, granite, etc.
2.Craft and Raw Materials
The pultruded FRP pipes are manufactured with the pultrusion process after choosing the correct raw materials major including the resin, fibers and additives according to the profiles requirement including mechanical strength, electrical insulation, anti-corrosion etc.
3. Applications
The pultruded FRP pipes can meet the customer's requirements by using different combination of resin, fibers and others.
The pultruded FRP pipes offer a unique combination of chemical resistance, size stability, high strength, and thermal/electric non-conductivity, etc.
The pultruded FRP pipes are widely used and according to their diameter they may be used as umbrella frames, underground cable jackets, cable cores (bearing tensile stress), handles of spade and hammer, structural members, handrails, water pipes, and mobile telecom outdoor antennal coves.
4.Some normal sizes of FRP round tubes are as follows:
(Pls note special sizes are also welcomed.)
5. There is a pictures of some FRP tubes.
6. Following is General Physical Parameters of FRP Pultruded Profiles.(If have special requirements, pls contact Nanjing Jinglue.) LW-lengthwise CW-crosswise PE=perpendicular to laminate face

Mechanical performance			Value		Units		Test method
Tensile strength	LW		230-600		Mpa		ASTM D-638
	CW		45-80
Tensile modulus	LW		18-30		Gpa		ASTM D-638
	CW		7-13
Flexural strength	LW		300-700		Mpa		ASTM D-790
	CW		80-120
Flexural modulus	LW		20-26		Gpa		ASTM D-790
	CW		7-12
Compressive strength	LW		280		Mpa		ASTM D-695
	CW		105
Compressive modulus	LW		21		Gpa		ASTM D-695
	CW		7.9
Interlayer shear strength	LW		25		Mpa		ASTM D-2344
Impact strength			280		KJ/M2		ASTM D-256
Physical property				Value		Units			Test method
Barcol Hardness				50		---			ASTM D-495
Water absorption(25 Centigrade,24h)				0.2-0.5		%			ASTM D-570
Density				1.75-2.00		g/cm3			ASTM D-792
Coefficient of thermal expansion(LW)				5.0		10-6/Centigrade			ASTM D-696
Coefficient of thermal conductivity				0.4		W/(m.K)			ASTM C-518
Elongation to break				0.9		%			ASTM D-638
Electrical property		Value			Units			Test method
Arc resistance(LW)		120			seconds			ASTM D-495
Dielectric constant(PF)		5			@60hz			ASTM D-150
Dielectric strength(PF)		8			KV/mm			ASTM D-149
Dielectric strength(LW)		1.6			KV/mm			ASTM D-149
Flammability property		Value			Units			Test method
Tunnel test		Max 25			second			ASTM E-4
Oxygen data		25-28			%			ASTM 2863
		28-32
		>32
Flammability classification		Self extinguish						ASTM D635

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