DNV Grade DH32,NV D32

DNV Grade DH32,NV D32,DNV DH32 steel plate is higher strength shipbuilding plate which is mainly used for built hull of vessels,ship body construction.Normally when rolling,Air rolled and Control Rolled is ok for ship plate DNV Grade DH32 with the thickness equal and belows 40 Millimeters,and for thickness above 40mm,the heat treatment shall be Normalised or TMCP,these two technical treatment would improve steel strength in yield and tensile points.

Technical Requirements & Additional Services for DNV DH32 steel plate:
♦ High tension test
♦ Z-Test (Z15,Z25,Z35)
♦ Low temperature impacting test
♦ Ultrasonic test under ASTM A435,A577,A578
♦ Cetificated by ABS,LR,GL,BV,DNV,KR,NK,CCS,RINA
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands 

►Mechnical property for DNV Grade DH32 shipbuilding plate:

Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
315	440-590	200mm	50mm
		19	22

►Chemical composition for DNV Grade DH32 ship plate (Heat Analysis Max%)

Main chemical elements composition of DNV Grade DH32
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