In terms of strength, the 13CrMo4-4 steel grade has a minimum yield strength of 295 MPa and a minimum tensile strength of 440-590 MPa. This makes it suitable for handling high-pressure environments, as it can withstand significant external forces without deformation or failure.
The versatility of the 13CrMo4-4 steel grade is also evident in its ability to resist corrosion and oxidation at elevated temperatures. It contains significant amounts of chromium and molybdenum, which contribute to its corrosion resistance and enhance its ability to withstand high temperatures.
The chemical composition of the 13CrMo4-4 steel grade consists of the following elements:
– Carbon (C): 0.08-0.18%
– Silicon (Si): ≤0.35%
– Manganese (Mn): 0.40-1.00%
– Phosphorus (P): ≤0.025%
– Sulfur (S): ≤0.020%
– Chromium (Cr): 0.70-1.15%
– Molybdenum (Mo): 0.40-0.60%
These elements play a crucial role in determining the mechanical properties and performance of the steel. The carbon content provides the necessary strength, while the alloying elements (chromium and molybdenum) enhance its corrosion resistance and high-temperature strength.
In summary, the 13CrMo4-4 steel grade is highly valued for its strength and versatility, making it suitable for various applications in the pressure vessel and boiler industry. Its mechanical properties, technical properties, and chemical composition all contribute to its ability to withstand high pressures, temperatures, and corrosive environments.
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