We are DNV Grade AH40 and NV/A40 Steel plate supplier


Gangsteel export DNV Grade AH40 and NV/A40 steel plate. DNV AH40 is Higher-strength DNV shipbuilding steel Grade. NV/AH40 shipbuilding steel equal grade


Keywords: DNV/AH40 Steel plate, DNV Grade AH40, DNV grade AH40 steel properties, DNV AH40 equivalent material, DNV grade AH40 forged steel, DNV grade AH40 steel density



Adopt Standard: DNV

DNV AH40 steel grade


DNV Grade AH40 and NV/A40 Steel plate Specification:
Thickness: 6mm to 240mm,
Width: 1500mm to 4020mm

Length: 3000mm to 27000mm.
the max weight is 36MT/PCS.

In Z test, EH32 Z15, EH32 Z25, EH32 Z35
UT test: S0E1, S1E2, S2E3 and other standard which is required by customers.


Henan Gang iron and steel co., Ltd is specialized at super thick steel plate which beyond nine classification society approval. We have cooperated with LR, DNV, CCS, ABS, BV, GL, NK, KR, and RINA to do the third party inspection to promise quality for our customers.


Gangsteel exported DNV AH40 steel material directly from our mill in the competitive price from sales department. Each plate has the Mill Certificate Test EN10204 3.2 Version.


We sincerely hope old and new customers to visit our mill for a long steel business


DNV Grade AH40 and NV/A40 Steel plate Chemical composition heat analysis

Element DNV AH40 Max % Element DNV AH40 max %
C 0.18 Ni 0.40
Mn 0.90-1.60 Mo 0.08
Si 0.10-0.50    Al 0.020-0.085
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  



DNV AH40 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 AH40 8-240 390 510-660 20 41J

Note: the impact energy under less 50mm thickness


If you have any need in DNV Grade AH40 and NV/A40 Steel plate, please feel free to contact us soon.


DNV Grade AH40 and NV/A40 Steel plate supplier