EN 10255 Welded and Seamless Steel Pipes of Non-alloy Steel

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EN 10255

EN 10255 Steel Pipe is a top choice for weldable structural steels. It is made specifically for fixed offshore structures.

The pipes are made to endure harsh offshore conditions. They give a strong and reliable solution for your projects.

Our EN 10255 Carbon Steel Pipes come in many thicknesses. They include S355NLO up to 200 mm, S355MLO, S420MLO, S460MLO, S500MLO up to 120 mm, and S420QLO, S460QLO, S500QLO, S550QLO, S620QLO, S690QLO up to 150 mm.

For custom projects, we can provide thicker dimensions. We will still meet the European Standard’s specs.

Our pipes work in the North Sea Sector. They also work in other regions, as long as they account for local conditions.

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Specification

Standard: EN10255
Procedure: ERW, SMLS
Dimensions: 10.2mm -165.1mm, 1/8″ – 6″, DN6 – DN150

Thickness: 2mm – 5.4mm, Light-MEDIUM-Heavy series

Unit Length: standard 6 or 6.4m, Random 4- 16mtr

Steel Grade: S195 T
Surface Coating: Varnishing, Oiling, Hot Dip Galvanizing, FBE, 2PP, 3PP, 2PE, 3PE

End Type: Square cut, Plain, Bevelled, Threaded, Socket, Grooved
Joint Method: Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining: Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ERW_pipe_supplier_carbon_steel_pipe_UNIASEN

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Dimension

At UNIASEN, we recognize that every project has its unique requirements. We offer many EN 10255 Carbon Steel Pipes sizes to meet your needs.

Our pipes come in various thicknesses. They range from S355NLO up to 200 mm, S355MLO, S420MLO, S460MLO, and S500MLO up to 120 mm. Also, S420QLO, S460QLO, S500QLO, S550QLO, S620QLO, and S690QLO up to 150 mm.

We can also handle thicker requests. This ensures that your project’s needs are met without compromises.

Dimensions, Diameter Tolerance And Mass Per Unit Length
Specified Outside Diametera D (mm)	Thread Sizea R	Outside Diameter		H Heavy Series			M Medium Series
		max. (mm)	min. (mm)	Wall Thickness T (mm)	Mass Per Unit Length Of Bare Tube		Wall Thickness T (mm)	Mass Per Unit Length Of Bare Tube
		max. (mm)	min. (mm)	Wall Thickness T (mm)	Plain End (kg/m)	Socketed (kg/m)	Wall Thickness T (mm)	Plain End (kg/m)	Threaded and Socketed (kg/m)
10.2	1/8	10.6	9.8	2.6	0.487	0.490	2.0	0.404	0.407
13.5	1/4	14.0	13.2	2.9	0.765	0.769	2.3	0.641	0.645
17.2	3/8	17.5	16.7	2.9	1.02	1.03	2.3	0.839	0.845
21.3	1/2	21.8	21.0	3.2	1.44	1.45	2.6	1.21	1.22
26.9	3/4	27.3	26.5	3.2	1.87	1.88	2.6	1.56	1.57
33.7	1	34.2	33.3	4.0	2.93	2.95	3.2	2.41	2.43
42.4	1 1/4	42.9	42.0	4.0	3.79	3.82	3.2	3.10	3.13
48.3	1 1/2	48.8	47.9	4.0	4.37	4.41	3.2	3.56	3.60
60.3	2	60.8	59.7	4.5	6.19	6.26	3.6	5.03	5.10
76.1	2 1/2	76.6	75.3	4.5	7.93	8.05	3.6	6.42	6.54
88.9	3	89.5	88.0	5.0	10.3	10.5	4.0	8.36	8.53
114.3	4	115.0	113.1	5.4	14.5	14.8	4.5	12.2	12.5
139.7	5	140.8	138.5	5.4	17.9	18.4	5.0	16.6	17.1
165.1	6	166.5	163.9	5.4	21.3	21.9	5.0	19.8	20.4
a For relationship between specified outside diameter (D), thread size (R) and nominal diameter (DN), see Annex A. T = specified wall thickness.

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Chemical Requirement

Our EN 10255 Carbon Steel Pipes have a specific chemical composition. It ensures they perform well in offshore environments.

The chemical composition is designed to make the pipe resist corrosion. It ensures longevity and durability in tough conditions.

Chemical Composition (Cast Analysis) And Mechanical Properties
Steel Grade		Chemical Composition %				Mechanical Properties
						Upper Yield Strength ReH min. (MPa)	Tensile Strength Rm (MPa)	Elongation A min. %
Steel Name	Steel Number	C max	Mn max	P max	S max
S 195T	1.0026	0.20	1.40	0.035	0.030	195	320 to 520	20

Mechanical Requirement

The pipes are made to withstand the tough conditions offshore. They have the mechanical properties of EN 10255.

The pipes have minimum yield strengths up to 690 MPa. They also have impact properties at temperatures as low as -40 °C.

This ensures that our pipes can handle high stress and extreme temperatures. They provide a reliable and tough solution for your offshore construction needs.

Chemical Composition (Cast Analysis) And Mechanical Properties
Steel Grade		Chemical Composition %				Mechanical Properties
						Upper Yield Strength ReH min. (MPa)	Tensile Strength Rm (MPa)	Elongation A min. %
Steel Name	Steel Number	C max	Mn max	P max	S max
S 195T	1.0026	0.20	1.40	0.035	0.030	195	320 to 520	20

Steel Grades

We offer many steel grades for our EN 10255 Carbon Steel Pipes. These include S355NLO, S355MLO, S420MLO, S460MLO, S500MLO, S420QLO, S460QLO, S500QLO, S550QLO, S620QLO, and S690QLO.

Each grade offers unique properties, allowing you to choose the perfect match for your specific project requirements. You might need high-yield strength or superior toughness. We have a steel grade for you.

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