ASTM A131M covers structural steel plates, shapes, bars, and rivets intended primarily for use in ship construction. Material in
ASTM A131 is available in Ordinary Strength and Higher Strength. The maximum thickness of products A131 furnished is 4 in. [100 mm] for plates and 2 in. [50 mm] for shapes and bars. Katalor can offer the shipbuilding material with standard ASTM A131, CCS, ABS, VL, LR, BV, NK, KR, RINA and RMRS etc.
ASTM A131 AH36 chemical composition:
|
Grade |
C |
Mn |
Si |
P |
S |
Al |
Cb |
|
0.18 |
0.90-1.60 |
0.10-0.50 |
0.035 |
0.035 |
0.015 |
0.02-0.05 |
|
A131 AH36 |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
N |
|
0.05-0.10 |
0.02 |
0.35 |
0.20 |
0.40 |
0.08 |
- |
ASTM A131 AH36 mechanical properties:
|
Grade |
Yield Strength (Mpa) |
Tensile Strength
(MPa) |
Elongation in8 in.[200mm]
(%) |
Elongation in2 in.[50mm]
(%) |
Test Temperature(°C) |
|
A131 AH36 |
355 |
490-620 |
19 |
22 |
0 |
A131 AH36 is one of the Higher Strength—Grades AH with a specified minimum yield point of 46 ksi [315 MPa]. Shapes and bars are normally available as grades A131 AH36, AH32 and A. The steel A131 AH36 shall be killed. A131 AH36 shall be made using a fine grain practice and aluminum(vanadium, or columbium (niobium)) may be used for grain refinement. Plates ordered to Grades A131 AH32 shall be normalized, control rolled, thermo-mechanical control processed, or quenched and tempered.Charpy V-notch tests shall be made on Grade A131 AH36 over 1/4 in. [6.4mm] in thickness, and the frequency of Charpy V-notch impact tests shall be as given in Table 1 and Table 2. The test results shall conform to the requirements given in Table 7.
