ASTM A131 Grade DH36 oil and offshore platform steel plate

A131 Grade DH36 marine steel plate are mainly used to build vessels which are sailing in low temperature oceans.

When rolling A131 Grade DH36, TMCP or Normalized shall be done for heat treatment, and low temperature impacting test have to be done under minus 20℃.

Main chemical elements composition of A131 Grade DH36:

C	Si	Mn	P	S	Al (acid) min.	Nb
0.18	0.10-0.50	0.90-1.60	0.035	0.035	0.015	0.02-0.05
V	Ti	Cu	Cr	Ni	Mo
0.05-0.10	0.02	0.35	0.20	0.40	0.08

A131 DH36 high strength property:

Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
355	490-620	200mm	50mm
		19	22