ASTM A131 D steel plate has more stringent requirements than A/B grade. In addition of high strength and good impact toughness, there are also stringent requirements for the internal quality of ASTM A131 D steel plate.
ASTM A131 D ship plate is a tough steel suitable for hull structure. It is usually delivered in hot-rolled and normalized. It needs ultrasonic flaw detection. It is a high-end product in ship plate.
ASTM A131 D chemical composition:
|
Grade |
C |
Si |
Mn |
P |
S |
C+Mn/6 |
|
A131 D |
0.21 |
0.10-0.35 |
0.60 |
0.035 |
0.035 |
0.40 |
ASTM A131 D mechanical properties:
|
Grade |
Yield Strength (Mpa) |
Tensile Strength
(MPa) |
Elongation in8 in.[200mm]
(%) |
Elongation in2 in.[50mm]
(%) |
Test Temperature(°C) |
|
A131 D |
235 |
400-520 |
21 |
24 |
20 |
For the delivery of ASTM A131 D steel plate, there should be signs on the plates.
The signs mainly contain:
(1) Classification Society Accreditation Mark.
(2) Use paint frame or stick marking, including technical parameters such as heat/ batch number, standard grade, length and width, etc.
(3) Smooth appearance and good surface, without defects.
Please contact Shanghai Katalor to get more information of ASTM A131 D steel plate.
