France · AFNOR NF

A 42

NF A36-605 — Weldable steel drip forged articles for boilers and pressure vessels. Carbon and carbon-manganese steels. Grades and types

Chemical composition

wt% · log scale
0.010.11C0.18Mn0.6P0.035S0.03Si0.3
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥245 MPaTensile strength Rm410–490 MPaElongation A≥29 %

Chemical composition

ElementminmaxSimilarRemarks
C0.18
Mn0.6
P0.035
S0.03
Si0.3

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
forgings, normalized or quenched and tempered≥245410–490≥29 Lo = 5 x d