Norway · NS

E155

NS EN 10305-5 — Steel tubes for precision applications - Technical delivery conditions - Part 5 : welded and cold sized square and rectangular tubes

Chemical composition

wt% · log scale
0.0010.010.1110Al0.015C0.11Mn0.7P0.025S0.025Si0.35
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥203 MPaTensile strength Rm≥290 MPaElongation A≥15 %welded steel tube, cold rolledYield strength Rp0.2≥155 MPaTensile strength Rm270–410 MPaElongation A≥28 %welded steel tube +NTensile strength Rm≥260 MPaElongation A≥28 %welded steel tube +A

Chemical composition

ElementminmaxSimilarRemarks
Al0.015Total
C0.11
Mn0.7
P0.025
S0.025
Si0.35

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
welded steel tube, cold rolled≥203 Upper Yield stress ReH ≥ 0.7Rm≥290≥15 Elongation after fracture
welded steel tube +N≥155 Upper Yield Stress270–410≥28 Elongation after fracture
welded steel tube +A≥260≥28 Elongation after fracture