Cold formed Welded Structural Hollow Sections

Cold formed Welded Structural Hollow Sections

OD:21-630mm
Wall thickness:3-40mm
Pipe Length: from 6 to 12 m.
Different lengths on request.
Pipe Ends: plain square-cut or bevelled ends for butt-welding.
Surface Conditions: black (bare).
Coatings are available on reques
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Product Details

Cold formed Welded Structural Hollow Sections

cold-formed hollow sections are formed at ambient temperatures and are produced in accordance with standard EN 10219-1: 2006. 

OD:21-630mm

Wall thickness:3-40mm

Pipe Length: from 6 to 12 m.

Different lengths on request.

Pipe Ends: plain square-cut or bevelled ends for butt-welding.

Surface Conditions: black (bare).

Coatings are available on reques

Conditions for welding cold formed zones and adjacent material

1. Mechanical Properties

Steel grade

Thickness
(mm)

Yield strength
(N/mm²)

Tensile strength
(N/mm²)

Elongation(%)

Test temperature
(°C)

Impact value
(J)

S235JRH

6≤t≤16

235≤

360–510

24≤

20

27≤

16<t≤22

225≤

S275J0H

6≤t≤16

275≤

410–560

20≤

0

27≤

16<t≤22

265≤

S275J2H

6≤t≤16

275≤

410–560

20≤

-20

27≤

16<t≤22

265≤

S355J0H

6≤t≤16

355≤

470–630

20≤

0

27≤

16<t≤22

345≤

S355J2H

6≤t≤16

355≤

470–630

20≤

-20

27≤

16<t≤22

345≤

S355K2H

6≤t≤16

355≤

470–630

20≤

-20

40≤

16<t≤22

345≤

2. Chemical Composition

Unit: %

Steel grade

Thickness
(mm)

C

Si

Mn

P

S

N

CEV

S235JRH

6≤t≤22

≤0.17

-

≤1.40

≤0.040

≤0.040

≤0.009

≤0.35

S275J0H

6≤t≤22

≤0.20

-

≤1.50

≤0.035

≤0.035

≤0.009

≤0.40

S275J2H

6≤t≤22

≤0.20

-

≤1.50

≤0.030

≤0.030

-

≤0.40

S355J0H

6≤t≤22

≤0.22

≤0.55

≤1.60

≤0.035

≤0.035

≤0.009

≤0.45

S355J2H

6≤t≤22

≤0.22

≤0.55

≤1.60

≤0.030

≤0.030

-

≤0.45

S355K2H

6≤t≤22

≤0.22

≤0.55

≤1.60

≤0.030

≤0.030

-

≤0.45

 Usage:

1.Cold formed hollow sections for steel construction ensure high mechanical resistance and high yield strength. They are used as a fixed load-bearing structures in the building and civil engineering, are suitable elements in mechanical engineering because of its static

advantages, 

2.It also be used in aerospace and automotive industry. They are not suitable for dynamic loads.

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info@jiade-group.com

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