Italy · UNI

Fe 280

UNI 7947

Chemical composition

wt% · log scale
0.010.11C0.13Mn0.6P0.05S0.05
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥155 MPaTensile strength Rm≥280 MPaElongation A≥25 %steel tubes, normalizedTensile strength Rm≥300 MPaElongation A≥10 %steel tubes, weldedTensile strength Rm≥270 MPaElongation A≥27 %steel tubes, annealed

Chemical composition

ElementminmaxSimilarRemarks
C0.13
Mn0.6
P0.05
S0.05

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
steel tubes, normalized≥155≥280≥25
steel tubes, welded≥300≥10
steel tubes, annealed≥270≥27