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Hoberg & Driesch group
Hoberg & Driesch Finland Oy
Geschweißte Stahlrohre

Welded structural steel tubes

Welded round structural steel tubes, Welded thin-walled and precision steel tubes, Square and rectangular tubular beams

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Longitudinally unwelded steel tubes

Steel grade: S355J2H, S235JRH
Standard: EN 10210, EN 10219
Material certificate: EN 10204:3.1
Delivery condition: -
Dimension range: outside diameter 33,7 - 610mm / wall 5,6 - 25mm

100% tested, HFI longitudinally welded seam.

S235 and S355 are low carbon alloy steels. These medium carbon steels are characterised by both good welding properties and good impact resistance. S355J2H is also well suited for use in cold conditions.

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Powder-arc longitudinal welded steel tubes

Steel grade: S355J2H, S235JRH
Standard: EN 10219
Material certificate: EN 10204:3.1
Delivery condition: -
Dimension range: outside diameter 508 - 1422mm / wall 5 - 50,8mm

100% tested, SAW longitudinally welded weld seam.

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UP longitudinally welded steel tubes

Steel grade: S355J2H+N
Standard: EN 10219-1 / -2, ISO 3183, API 5 L
Material certificate: EN 10204:3.1
Delivery condition: -
Dimension range: outside diameter 406,4 - 1067mm / wall 10 - 50,8mm

100% tested, double-sided SAW longitudinally seam welded.

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Spiral welded steel tubes

Steel grade: S355J2H, S355+N
Standard: EN 10219
Material certificate: EN 10204:3.1
Delivery condition: -
Dimension range: outside diameter 610 - 1422 mm / wall 5 - 14,2 mm

100% tested weld seam.

S355 is a low carbon alloy steel. This medium carbon steel is characterised by both good welding properties and good impact resistance. S355J2H is also well suited for use in cold conditions.

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Welded precision steel tubes

Steel grade: E235, E355
Standard: EN 10305-2
Material certification: EN 10204:3.1
Delivery condition: -
Dimension range: outside diameter 10 - 205mm / wall thickness 0,5 - 8mm

Welded, cold-formed precision steel tube with very good dimensional accuracy of outside and inside diameters.

E235 and E355 are low carbon alloy steels with good machining and welding properties.

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Normal- und Gewinderohre

Welded thin-walled tubes

Steel grade: E235
Standard: EN 10305-3
Material certificate: EN 10204:3.1
Delivery condition: -
Dimension range: outside diameter 10 - 159 mm / wall thickness 0,8 - 8 mm

Welded, precision-rolled thin-walled tube. Smooth and finished surface. Very good dimensional accuracy of outer and inner diameters.

E235 is a low carbon alloy steel with good machining and welding properties.

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Welded square and rectangular tubular beams

Steel grade: S355J2H
Standard: EN 10210-1/-2
Material certificate: EN 10204:3.1
Delivery condition: hot rolled
Dimension range: outside diameter 40 - 500mm / wall 3 - 20mm

Welded, square or rectangular tubular bar. RHS (Rectangular Hollow Section) tubes are widely used in frame structures and railings for buildings, bridges, ships, etc.

S355 is a low carbon alloy steel. This medium carbon steel grade is characterised by both good welding properties and good impact resistance. S355J2H is also well suited for use in cold conditions.

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