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ASTM A283 Grade C is a widely used structural carbon steel plate known for its good weldability and moderate tensile strength, making it suitable for general construction and structural applications such as bridges, buildings, and low-pressure tanks. Here's an overview of ASTM A283 Grade C carbon steel plate.
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|
ASTM A283 Grade C Chemical Elements (max) |
Heat Analysis, % |
|
Carbon |
0.24 |
|
Manganese |
0.9 |
|
Phosphorus |
0.03 |
|
Sulfur |
0.03 |
|
Silicon |
|
|
Plates 11⁄2 in. [40 mm] and under, max |
0.4 |
|
Plates over 11⁄2 in. [40 mm] |
0.15-0.40 |
|
Copper |
0.2 |
ASTM A283 Grade C Carbon Steel Plate Mechanical Properties ( Mpa):
|
Grade/ Material |
Tensile Test |
Ksi/MPa |
|
A283 Grade C/ A283 Gr C |
Tensile Strength |
55-75/380-515 |
|
Yield Strengh |
I:30/205 |
|
|
Elongation |
I:22% |
|
|
Impact Test( if any) |
|
For A283 Grade C steel plates produced from coils or delivered without final heat treatment, additional processing is usually necessary to ensure material performance. These may include:
Stress Relief Testing: To confirm that the material retains its integrity and stability under load.
Uncoiling and Flattening: Coiled plates need to be uncoiled and inspected for surface defects or dimensional issues.
Tempering or Normalizing: Heat treatment processes such as tempering or normalizing are often applied to improve ductility, reduce residual stress, and enhance overall mechanical properties.
Before such steel plates are shipped from the factory, they typically undergo these treatments and quality inspections to ensure compliance with the relevant standards and project requirements.
In Summary
ASTM A283 Grade C combines affordability, formability, and moderate strength, making it a practical choice for structural components. However, when supplied from coils or without heat treatment, proper post-processing is essential to ensure consistent performance and structural reliability.
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