ASTM A131 is A structural grade of steel plate utilized almost exclusively in the shipbuilding industry. This grade is defined as ordinary strength with specified minimum yield of 34KSI(235Mpa). Applications include barges, marine equipment and ship construction. These grades are also certified by the American Bureau of Shipping(ABS). Great ships start with high-quality marine grade steel plate and Gnee is proud to supply the American shipbuilding industry with marine and offshore steel that’s corrosion-resistant and tough, demonstrating decreased brittleness, even in cold temperatures, and increased strength to resist force trauma and vibration.
Chemical Requirement For Ordinary-Strength ASTM A131 Steel
| Element |
Chemical composition(heat analysis% max |
| |
AH/DH/EH32 AH/DH/EH36 and AH/DH/EH40 |
FH32/36/40 |
| C |
0.18 |
0.16 |
| Mn |
0.90-1.60 |
0.90-1.60 |
| Si |
0.10-0.50 |
0.10-0.50 |
| P |
0.035 |
0.025 |
| S |
0.035 |
0.025 |
| Al min |
0.015 |
0.015 |
| Cb |
0.02-0.05 |
0.02-0.05 |
| V |
0.05-0.10 |
0.05-0.10 |
| Ti |
0.02 |
0.02 |
| Cu |
0.35 |
0.35 |
| Cr |
0.20 |
0.20 |
| Ni |
0.40 |
0.40 |
| Mo |
0.08 |
0.08 |
| N |
- |
0.009 |
Tensile Requirement For ASTM A131 Steel
| Grade |
Tensile Strength ksi(Mpa) |
Yield Strength min ksi(Mpa) |
Elongation in 8 in (200mm) % |
Elongation in 2 in (50mm) min % |
| Ordinary strength |
58-75(400-520) |
34(235) |
21 |
24 |
| A B D E CS |
| Higher strength |
|
| AH32 DH32 EH32 FH32 |
64-85(440-590) |
46(315) |
19 |
22 |
| AH36 DH36 EH36 FH36 |
71-90(190-620) |
51（355（ |
19 |
22 |
| AH40 DH40 EH40 FH40 |
74-94（510-650） |
57（390） |
19 |
22 |
ASTM A131 Shipbuilding Steel Plate Applications
1. Construct various types of ships including cargo ships, oil tankers, passenger ships, and other marine vessels, provide structural support for ships.
2. Used in various other marine applications such as offshore platforms, marine pipelines, and other underwater structures.
3. Used in the construction of naval vessels, submarines, and other military ships.
ASTM A131 Ship Steel Plate Features
1. High Strength: with excellent high-strength properties, ensure your boat has better sturdiness and safety performance when sailing in harsh environments for a long time.
2. Corrosion Resistance: adopts high-quality materials and advanced anti-corrosion technology, effectively prolongs ships' service life.
3. Strong Adaptability: a wide range of applications, meet the requirements of different types of ships and other classification societies, and can be customized according to customer needs.
4. Affordable Shipbuilding Steel Prices: We offer high-quality, high-performance products at very reasonable prices. We are customer-centric, focus on improving cost performance, and help customers achieve a higher return on investment.
5. Reliability: As an enterprise committed to providing customers with high-quality products and services, Gnee's shipbuilding steel plates strictly control every link in production and quality management to ensure that the quality of each steel plate can meet customer requirements, providing reliable and safe The product.
