Adopt standard: DNV Extra high strength steel plate
DNV Extra High Grade:

 

DNV A500 steel grade.

 

DNV A500 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in DNV A690.

 

NV DA500 steel grade shall be killed and find grain treated. Steel grade of strength levels up to and including 500Mpa should be supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa shall be supplied in TM or QT delivery condition.

 

Gangsteel is specialized in Super thickness steel grade. We have much experience in manufacture and exporting extra high strength steel grade.

For more information in DNV A500 steel grade, please refer to the following:

DNV A500 Chemical composition heat analysis

Element	NV A500  Max %	Element	NV A500  max %
C	0.21	Ni	0.40
Mn	1.70	Mo	0.08
Si	0.10-0.55	Al	0.020 min
S	0.035	Nb	0.20-0.05
P	0.035	V	0.05-0.10
Cu	0.35	Ti	0.0007-0.05
Cr	0.20	N

           

DNV A500 Mechanical properties,            longitudinal min impact energy

Grade	Thickness	Yield Strength	Tensile Strength	Elongation	Impact Energy
	(mm)	MPa (min)	MPa	% (min)	(KV J) (min)
					0 degree
DNV A500	8-260	500	610-770	16	33J

Note: the impact energy under less 150mm thickness

 

If you have any need in NV A500 steel plate, please feel free to contact us soon to get a competitive price.