The 13CrMo4-4 steel grade exhibits a minimum yield strength of 290 MPa and a minimum tensile strength of 450-600 MPa. It also possesses a high percentage of elongation, typically ranging from 22% to 25%.
Another significant mechanical property is the impact strength, which is measured through Charpy V-notch testing at various temperatures. The 13CrMo4-4 steel grade generally offers good impact strength at low and ambient temperatures, making it suitable for demanding industrial applications.
In terms of technical properties, the 13CrMo4-4 steel grade is known for its excellent weldability. This characteristic allows for easy fabrication and installation processes in the petrochemical and refining industry.
The chemical composition of the 13CrMo4-4 steel grade consists primarily of Carbon (C), Silicon (Si), Manganese (Mn), Phosphorus (P), Sulfur (S), Chromium (Cr), and Molybdenum (Mo). The specific chemical composition is typically as follows:
– Carbon (C): 0.08-0.18%
– Silicon (Si): 0.35% max
– Manganese (Mn): 0.40-0.70%
– Phosphorus (P): 0.025% max
– Sulfur (S): 0.010% max
– Chromium (Cr): 0.70-1.15%
– Molybdenum (Mo): 0.40-0.60%
These chemical elements provide the necessary alloying elements in the steel, enhancing its mechanical properties and corrosion resistance.
Overall, the mechanical, technical, and chemical properties of the 13CrMo4-4 steel grade make it a suitable choice for the petrochemical and refining industry, where it withstands high temperatures, pressures, and corrosive environments.
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