Accreditation Administration System:
With the higher tensile strength minimum 550 Mpa, Steel grades DNV Grade AH40,DNV Grade DH40,
DNV Grade EH40 and DNV Grade FH40 can be used in the highest strength and pressure enviorements.
As for the additional technical needs from cusomers,Normalized is normal done. Other relative grades
are following: DNV Grade A, DNV Grade B, DNV Grade D, DNV Grade E, DNV Grade AH32, DNV
Grade AH36, DNV Grade AH40, DNV Grade DH36, DNV Grade DH40, DNV Grade EH36, DNV Grade
EH40, DNV Grade FH32, DNV Grade FH36, DNV Grade FH40.
Please find the chemical composition and tensile strength deatails of DNV Grades AH40,DH40,EH40 and FH40.
|
DNV | ||||||
|
Grade |
T |
DNV Grade AH40 |
DNV DH40 |
DNV EH40 |
DNV FH40 | |
|
Chemical Composition % ≤ |
C |
0.18 |
0.16 | |||
|
Mn |
0.9-1.60 | |||||
|
P |
0.035 |
0.025 | ||||
|
S |
0.035 |
0.025 | ||||
|
Si |
0.50 | |||||
|
Al (acid) |
≥ 0.015 | |||||
|
Nb |
0.02-0.05 | |||||
|
V |
0.03-0.10 | |||||
|
Ti |
0.02 | |||||
|
Ni |
0.40 |
0.80 | ||||
|
Cu |
0.35 | |||||
|
Cr |
0.20 | |||||
|
Mo |
0.08 | |||||
|
N |
|
0.009 | ||||
|
Yield Strength (Mpa) |
390 |
390 |
390 |
390 | ||
|
Tensile Strength (Mpa) |
510-650 |
510-650 |
510-650 |
510-650 | ||
|
Impacting Test temperature (℃) |
0 |
-20 |
-40 |
-60 | ||
|
Mark |
NV/AH40 |
NV/DH40 |
NV/EH40 |
NV/FH40 | ||
H:Heat Analysis. P:Product Analysis
For more technical data，please link:
