EN 10210-1 Hollow Sections-Seamless Steel Pipe

EN 10210-1: Hot Finished Seamless Structural Hollow Sections of Non-Alloy Steels

Standard: EN 10210-1
JST can offer different grades of steel pipes, such as S235JRH, S275JOH, S275J2H, S355JOH, S355J2H, S355K2H, etc.

Introduction EN 10210-1 hot-finished hollow section tube is made from non-alloy structure steel and fine-grain structure steel. It features simple form, excellent strength properties, durable, compact structure and wide specifications and dimensions. Adopting appropriate types of steels can optimize function and affordability of this hollow section pipe. This hollow section tube is broadly made use of in the frame structure of buildings, bridge structure, railing, mechanical frame structure, frame structure of transport vehicle, scaffolding, rack or spline and pinion elevator, crane, etc.

Advantages

JST provides British UNICORN ultrasonic joint inspection machine, ultrasonic inspection machine, hydrostatic machine and magnetic flux leakage testing machine to check our hollow section plumbing. According to the requirements of customers and standards, we do horizontal and longitudinal defects online testing for the in and out of hollow section tubes. Therefore, we're able to supply qualified and excellence seamless steel water pipes.
We also own professional pphysical and chemical testing center and international level advanced testing equipment for hollow section pipes, for German full spectrum direct-reading spectrometer, Japan metallurgical microscope, impact testing machine, tensile testing machine, computer controlled electro-hydraulic servo universal testing machine and a number of machine tools. They can do drawing, flaring, flattening, curling and also other physical tests for non-alloy structural steels and fine grained structural steel hollow section tubes and thereby ensure stable performance of steel.
JST also configures Siemens electronic controlled six roller straightening machine that can straighten hollow section pipes after being chilled and ensure the pipe straightness complying with the requirements of customers and standards.

Specifications of EN 10210-1 Seamless Hollow Sections Tube

1. Chemical Composition

Steel Grade Chemical Composition Limits (%)
C Max. Si Max. Mn Max. P Max. S Max. N Max.
S235JRH 0.17 / 1.40 0.040 0.040 0.009
S275J0H 0.20 / 1.50 0.035 0.035 0.009
S275J2H 0.20 / 1.50 0.030 0.030 /
S355J0H 0.22 0.55 1.60 0.035 0.035 0.009
S355J2H 0.22 0.55 1.60 0.030 0.030 /
S355K2H 0.22 0.55 1.60 0.030 0.030 /

2. Mechanical Properties of Hollow Section Pipe

Steel Grade Mechanical Properties Impact Energy (KV J)
Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%) Test Temperature At Test Temperature of ℃
-20 0 20
S235JRH 235 360-510 26 / / 27
S275J0H 275 410-560 23 / 27 /
S275J2H 275 410-560 23 27 / /
S355J0H 355 510-680 22 / 27 /
S355J2H 355 510-680 22 27 / /
S355K2H 355 510-680 22 40 / /

 

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