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Cold Formed Welded Structural Hollow Section

Using world-class equipment and processes, we manufacture roll formed square structural hollow sections at our 26-inch electric resistance welding facility and produce large square structural hollow sections through the most extensive press forming process. We consistently strive for enhanced quality, mass production and cost-effective production.

Cold formed welded structural hollow section EN10219

Cold formed hollow sections must not be automatically substituted for hot formed hollow sections on a direct size for size basis without reference to the designer or engineer.

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