ASTM A283 steel plate is divided into four grades according to the structural quality of use: A283GrA, A283GrB, A283GrC, A283GrD.
ASTM A283 steel plate implementation standard: ASTM A283/A283M-03 is equivalent to ASME standard, namely, SA283GrA, SA283GrB, SA283GrC, SA283GrD.
SA283GrA steel plate is a medium and low tensile strength carbon structural steel plate, which is an American standard steel plate. Carbon structural steel is a carbon steel with a carbon content of less than 0.8%. SA283GrA steel plate contains less sulfur, phosphorus and non-metallic inclusions than carbon structural steel, and its mechanical properties are better.
Carbon structural steel can be divided into three categories according to the carbon content: low carbon steel (C≤0.25%), medium carbon steel (C is 0.25-0.6%) and high carbon steel (C>0.6%). Carbon structural steel is divided into two groups with normal manganese content (0.25%-0.8% manganese content) and higher manganese content (0.70%-1.20% manganese content) according to the manganese content. The latter has better mechanical properties. and processing performance.
