DH40 steel plate

DH40 steel plate is a high-strength marine steel plate, and it implements the standards certified by the Nine Nations Classification Society.

For example, the implementation of China Classification Society is "CCS",If it is France Bureau of Shipping, it is "BV",If it is the American Bureau of Shipping, it is the "ABS" standard, so it depends on which country's classification society is certified.
DH40 steel plate is a kind of marine steel plate with good mechanical properties. At the same time, DH40 steel plate has high steel plate strength. After being processed by its own heat treatment process, under the condition of small compression ratio, proper process and optimal ratio of internal alloying elements can have good performance under the condition of small compression ratio. Mechanical behavior.

Delivery status of DH40 steel plate:
DH40 steel plate can be delivered in normalizing, annealing, controlled rolling, tempering, quenching, quenching and tempering, etc. The specific situation depends on customer needs!

DH40 steel plate Chemical Composition in Tempering and Quenching:

Element	CCSDH40 Max %	Element	CCSDH40 Max %
C	0.18	Ni	0.40
Mn	0.90-1.60	Mo	0.08
Si	0.50	Al	0.015 min
S	0.035	Nb	0.20-0.05
P	0.035	V	0.05-0.10
Cu	0.35	Ti	0.02
Cr	0.20	N

Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

DH40 steel plate property in tempering and quenching:

Grade	Thickness	Yield Strength	Tensile Strength	Elongation	Impact Energy
	(mm)	MPa (min)	MPa	% (min)	(KV J) (min)
					-20 degree
CCSDH40	8-240	390	510-650	20	41J

Note: the impact energy under less 50mm thickness; longitudinal min impact energy

 

Application analysis of DH40 steel plate:
DH40 steel plate is a high-strength marine structural steel plate with good strength, which can be used to manufacture such as ship plate facilities, large offshore platforms, etc.!

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