BV D460 and BV E460 are both high-strength shipbuilding steels approved by Bureau Veritas with a minimum yield strength of 460 MPa. The primary difference lies in their impact toughness temperature: BV D460 is tested at -20° C, while BV E460 is tested at a more rigorous -40° C.
BV D460: Designed for structural applications requiring moderate notch toughness, suitable for colder operating environments.
BV E460: Designed for structural applications requiring high notch toughness, suitable for arctic or very cold environments.
Chemical composition
|
BV D460 extra High Strength Chemical Composition Tempering and Quenching |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al(min) |
N |
|
|
BV D460 |
0.20 |
0.55 |
1.70 |
0.030 |
0.030 |
0.015 |
0.020 |
|
BV E460 extra High Strength Chemical Composition Tempering and Quenching |
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|
Grade |
The Element Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
Al(min) |
N |
|
|
BV E460 |
0.20 |
0.55 |
1.70 |
0.030 |
0.030 |
0.015 |
0.020 |
Mechanical properties
|
BV D460 extra High strength property in Tempering and Quenching |
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|
Grade |
Mechanical Property |
Charpy V Impact Test |
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|
Yield |
Tensile |
Elongation |
Degree |
Energy 1 |
Energy 2 |
|
|
BV D460 |
Min Mpa |
Mpa |
Min % |
-20 |
J |
J |
|
460 |
570-720 |
17% |
31 |
46 |
||
|
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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|
BV E460 extra High strength property in Tempering and Quenching |
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|
Grade |
Mechanical Property |
Charpy V Impact Test |
||||
|
Yield |
Tensile |
Elongation |
Degree |
Energy 1 |
Energy 2 |
|
|
BV E460 |
Min Mpa |
Mpa |
Min % |
-40 |
J |
J |
|
460 |
570-720 |
17% |
31 |
46 |
||
|
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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Equivalent steel grades
|
Equivalent steel grade of BV GRADE D460 |
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|
DNV |
GL |
LR |
BV |
CCS |
NK |
KR |
RINA |
|
NV D460 |
GL-D460 |
LR/DH46 |
BV GRADE D460 |
CCS/D460 |
K D47 |
R D47 |
RI/D460 |
|
Equivalent steel grade of BV/E460 |
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|
DNV |
GL |
LR |
BV |
CCS |
NK |
KR |
RINA |
|
NV E460 |
GL-E460 |
LR/EH46 |
BV/E460 |
CCS/E460 |
K E47 |
R E47 |
RI/E460 |
