Designations: ASTM A623M-16
Chemical Composition:
– Carbon (C): 0.10% max
– Manganese (Mn): 0.40% max
– Phosphorous (P): 0.04% max
– Sulfur (S): 0.04% max
– Aluminum (Al): 0.01% min
– Nitrogen (N): 0.010% min
– Silicon (Si): 0.20% max
– Copper (Cu): 0.20% max
– Vanadium (V): 0.02% max
Mechanical Properties:
– Tensile Strength: 325 MPa (minimum)
– Yield Strength: 205 MPa (minimum)
– Elongation: 30% (minimum)
– Hardness: 55-65 HRB (Rockwell B scale)
Standard Number: ASTM A623M-16
The A623M-16 steel grade has been found to possess superior properties, revolutionizing structural engineering. Its chemical composition includes low amounts of carbon, manganese, phosphorous, sulfur, and high amounts of aluminum, nitrogen, silicon, copper, and vanadium. These components contribute to its exceptional mechanical properties, including a tensile strength of at least 325 MPa, yield strength of 205 MPa, elongation of 30%, and a hardness ranging from 55 to 65 HRB.
These properties make A623M-16 steel grade a highly desirable material for structural engineering applications, providing enhanced strength, durability, and performance.