United States · API

42

API 2H:2006 — Specification for carbon manganese steel plate for offshore structures ninth edition

Chemical composition

wt% · log scale
0.0010.010.1110Al0.02 – 0.06C0.18Cb0.04Ce0.01Mn0.9 – 1.35N0.012P0.03S0.01Si0.05 – 0.4Ti0.02
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥289 MPaTensile strength Rm427–565 MPaImpact energy Kv/Ku≥34 JElongation A≥22 %

Chemical composition

ElementminmaxSimilarRemarks
Al0.020.06
C0.18
Cb0.04
Ce0.01
Mn0.91.35
N0.012
P0.03
S0.01
Si0.050.4
Ti0.02

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Plates, normalized≥289427–565≥22≥34