Production Name :Hot rolled welded round closed pipes made of structural unalloyed steels PN-EN 10210-1 and PN-EN 10210-2

Structural pipes are used with various types of steel structural components. They meet the requirements for any other structural components, i.e. bars, shapes or plates. Classification of those pipes is based on their outside diameters and wall thicknesses. Low demand on structural pipes causes unification of those pipes with the transportation pipes of large outside diameters resulting in lower production costs. Special requirements may be specified dependent on the end use of structural pipes.

We offer the following types of pipes (grades are exemplary):

1. Hot rolled welded round closed pipes made of structural unalloyed steels PN-EN 10210-1 and PN-EN 10210-2:

Unalloyed steels: S235JRH, S275JOH, S275J2H, S355JOH and S355J2H

Fine-grained steels: S275NH, S275NLH, S355NH, S355NLH, S460NH, S460NLH

Structural hollow sections sizes

OUTER DIAMETER (OD)	10.2 - 139.7 mm
WALL THICKNESS (WT)	0.5 - 16.0 mm
. Tubes used in the construction business are delivered according to
EN 10210-2, DIN 2448, NFA 49-501, STN and ČSN 42 5715, 42 5716,	See tube sizes acc. to European standards .
GOST 8732	See tube sizes acc. to Russian standards

Steel for structural hollow sections

EN 10210-1	S235JRH, S275JOH, S355JOH, S275J2H, S355J2H, S275NH, S275NLH, S355NH, S355NLH, S420NLH, S460NH, S460NLH. Marking system for steel grades according to EN
GOST 8731	09G2S, 10, 20, 35, 45

Chemical composition and mechanical properties of steels acc. to DIN, NFA, ČSN and STN.
 

Hot rolled welded round closed pipes Pictures