France · AFNOR NF

EW 43-5

NF A81-950

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
steel bars, welded condition≥320430–510≥8 Lo = 5 x d≥20 Charpy V Notch (-40°C)

High/low temperature

Impact energy Kv/Ku (J)
ConditionTemperature ℃minRemarks
steel bars as-welded-4020Charpy V Notch