EN39 Scaffolding Tubes

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EN39 Scaffolding Tubes Supplier

European standard EN39 regulates the production and use of non-alloy carbon steel welded round scaffolding tubes, which are ideal for scaffolding in construction projects.

UNIASEN uses only the highest quality steel to manufacture EN39 scaffolding tubes. Steel grades include S235, S275 and S355. A variety of surface coatings are available, including zinc, epoxy and paint.

The surface needs to be clean and free of grease and low in sulfur. Together with BS1139, it constitutes one of the most popular scaffolding steel tube standard systems today.

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BS EN39 Scaffolding Pipe Specification

Standard	BS EN39
Procedure	SMLS
Procedure	ERW
Dimensions	48.3mm
	1 1/2″
	DN40
Thickness	3.2mm, 4mm
Unit Length	6 meters, 6.4 meters or customized from 4 meters to 12 meters.
Steel Grade	BS EN39 S235GT
Surface Coating	Painted, Oiling, Hot Dip Galvanizing
End Type	Square cut
Joint Method	Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

Dimension of EN39 Scaffold Tube

Outside Diameter	Wall Thickness
Outside Diameter	Type 3	Type 4
48.3 mm	3.2 mm	4.0 mm

Chemical Requirement

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Mechanical Requirement

Steel Grade		Chemical Composition in %，by mass						Mechanical Properties
Steel Name	Steel Number	C	Si	Mn	P	S	Al	Yield Strength ReH min	Tensile Strength Rm	Elongation A min
		max.		max.	max.	max.	min.	MPa	MPa	%
S235GT	1.0106	0.20	a,b	1.4	0.04	0.045	0.02	235	340/520	24
a： ≤0.05% (range 1)(≤0.04% if option 2 is specified )or ≥0.15%≤0.25%（range2）.
b：When bare tubes are specified（see option 8）the range shall be reported at the time of enquiry and order.

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Applications

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Steel Grade		Chemical Composition in %，by mass						Mechanical Properties
Steel Name	Steel Number	C	Si	Mn	P	S	Al	Yield Strength ReH min	Tensile Strength Rm	Elongation A min
		max.		max.	max.	max.	min.	MPa	MPa	%
S235GT	1.0106	0.20	a,b	1.4	0.04	0.045	0.02	235	340/520	24
a： ≤0.05% (range 1)(≤0.04% if option 2 is specified )or ≥0.15%≤0.25%（range2）.
b：When bare tubes are specified（see option 8）the range shall be reported at the time of enquiry and order.