Seamless precision steel tubes

The smooth surfaces are characteristic of seamless precision steel tubes. With their symmetry – and consequently, the resulting stability – they are equally suitable as structural tubes and line pipes.

Seamless precision steel tubes are some of our core products – not least because of having one of the leading manufacturers of seamless precision steel tubes, BENTELER Steel/Tube, by our side. Our customers benefit from high quality products and extensive material and processing expertise.

Seamless precision steel tubes

Standard

EN 10305-1

Dimensions

4 x 0.5 mm to 200 x 10 mm

Lengths

4 to 7 m

other lengths and fixed lengths on request

Delivery conditions

+C (BK)

+N (NBK)

+SR (BKS)

other delivery conditions on request

Materials

steel grade (EN)

E235

E355

other materials on request

Certification

2.2 or 3.1 acc. to EN 10204

other certifications on request

Seamless hydraulic and pneumatic steel tubes

Standard

EN 10305-4

Dimensions

4 x 0.5 mm to 114.3 x 20 mm

Lengths

6 m

other lengths and fixed lengths on request

Delivery conditions

+N (NBK)

other delivery conditions on request

Materials

steel grade (EN)

E235

E355

other materials on request

Surface treatment

oiled, bonderised and oiled, outside galvanised (zinc plated) and yellow chromated or blue passivated (Cr VI-free acc. to End of Life Vehicle Directive)

other surface treatment on request

Ends

tube ends closed with plugs or caps

Marking

continuous marking along the entire tube length

Certification

3.1 acc. to EN 10204

other certifications on request

Seamless precision steel tubes - BENTELER Zistaplex®

Standard

EN 10305-4

other standards such as EN 10305-1/-2/-3 on request

Dimensions

4 x 0.5 mm to 42 x 6 mm

Lengths

6 m

other lengths and fixed lengths on request

Delivery conditions

+N (NBK)

other delivery conditions on request

Materials

steel grade (EN)

E235

E355

other materials on request

Surface treatment

outside galvanised (min. 8 μm), Cr VI-free passivation, additional organic coating (EPOXY ≤ 50 μm), RAL 9005, black

other colours, coatings and thicknesses on request

Marking

continuous marking along the entire tube length on request

Certification

3.1 acc. to EN 10204

other certifications on request

 

The Zistaplex coating can also be used on welded tubes.

Seamless Precision steel tubes – BENTELER Zista® Seal

Standard

EN 10305-1/-2/-3/-4

Delivery conditions

+N (NBK)

other delivery conditions on request

Materials

steel grade (EN)

E195+N

E235+N

E355+N

other materials on request like STE460 or IF25

Surface treatment

zinc layer protection from red rust: 12 µm thick (8, 18 and 25 µm also available); passivation protection from white rust: Chrome VI-free in three versions (blue 24h, thin-layer 96h, thick-layer 168h)

Marking

continuous marking along the entire tube length on request

Certification

3.1 acc. to EN 20204

other certifications on request

Zista® Seal coating can also be used on welded tubes.

Seamless precision steel tubes Seamless precision steel tubes