The chemical composition of the A920/A920M-14 steel grade is as follows:
– Carbon (C): 0.15% maximum
– Manganese (Mn): 0.60% to 1.35%
– Phosphorus (P): 0.040% maximum
– Sulfur (S): 0.050% maximum
– Silicon (Si): 0.15% to 0.35%
– Copper (Cu): 0.20% minimum (if specified)
– Nickel (Ni): 0.25% minimum (if specified)
– Chromium (Cr): 0.25% minimum (if specified)
– Molybdenum (Mo): 0.08% minimum (if specified)
– Vanadium (V): 0.04% minimum (if specified)
The mechanical properties of the A920/A920M-14 steel grade include:
– Tensile strength: 70,000 psi (483 MPa) minimum
– Yield strength: 50,000 psi (345 MPa) minimum
– Elongation: 20% minimum in 8 inches (200 mm) and 23% minimum in 2 inches (50 mm)
This steel grade conforms to the standard number A920/A920M-14, which specifies the requirements for steel bars, microalloyed, hot-wrought, special quality, mechanical properties. It is designed to provide superior strength and performance in various applications.