France · AFNOR NF

XC 90

NF A36-102 — Iron and steel products. Hot-rolled non alloy mild steel strip for subsequent working.

Chemical composition

wt% · log scale
0.010.1110Al0.03C0.85 – 0.95Cr0.3Mn0.4 – 0.7Mo0.1Ni0.4P0.025S0.02Si0.15 – 0.35
  • min – max range
  • typical value

Mechanical properties

value range by condition
Tensile strength Rm590–710 MPaTensile strength Rm690–810 MPaTensile strength Rm790–910 MPaTensile strength Rm900–1020 MPasteel strip, temperedTensile strength Rm≤650 MPaElongation A≥18 %HardnessHRsteel strip, annealed

Chemical composition

ElementminmaxSimilarRemarks
Al0.03
C0.850.95
Cr0.3
Mn0.40.7
Mo0.1
Ni0.4
P0.025
S0.02
Si0.150.35

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
steel strip, tempered590–710；690–810；790–910；900–1020
steel strip, annealed≤650≥18 Lo= 50 mmHR ≤94 HRB