The chemical composition of A645/A645M-10(2016) steel grade consists of the following elements:
– Carbon (C): 0.17-0.20%
– Manganese (Mn): 1.00-1.30%
– Phosphorus (P): 0.020% max
– Sulfur (S): 0.020% max
– Silicon (Si): 0.15-0.35%
– Nickel (Ni): 3.25-3.75%
– Chromium (Cr): 0.70-1.00%
– Molybdenum (Mo): 0.25-0.35%
These elements are responsible for providing the necessary strength and durability to the steel grade.
In terms of mechanical properties, A645/A645M-10(2016) steel grade exhibits the following characteristics:
– Tensile strength: 85,000-105,000 psi (minimum)
– Yield strength: 75,000-95,000 psi (minimum)
– Elongation: 16-19% (minimum)
– Reduction of area: 45% (minimum)
– Charpy V-Notch impact strength: 20 ft-lbf (minimum) at -20°F
These mechanical properties ensure that the steel grade has the required strength and durability to withstand various applications and environments.
A645/A645M-10(2016) is the standard number that specifies the requirements for this particular steel grade. It provides guidelines for the chemical composition, mechanical properties, and other aspects relevant to the strength and durability of the steel.
The corresponding grade A645/A645M-10(2016) steel grade is the specific steel grade that meets the requirements outlined in the A645/A645M-10(2016) standard. It is important for manufacturers and users to ensure that the steel they are using corresponds to the specified grade to ensure the desired strength and durability.