Unveiling the Impressive Heat Resistance of 13CrMo4-4 Steel Grade

The 13CrMo4-4 steel grade is known for its impressive heat resistance properties. These properties are a result of its specific chemical composition and mechanical properties.

The chemical composition of 13CrMo4-4 steel includes elements that contribute to its heat resistance. It typically consists of:

– Carbon (C): 0.08-0.18%
– Silicon (Si): 0.10-0.35%
– Manganese (Mn): 0.40-0.70%
– Phosphorus (P): ≤0.025%
– Sulfur (S): ≤0.010%
– Chromium (Cr): 0.70-1.15%
– Molybdenum (Mo): 0.40-0.60%

These elements, especially chromium and molybdenum, impart high-temperature strength, oxidation resistance, and creep resistance to the steel grade.

In terms of mechanical properties, the impressive heat resistance of 13CrMo4-4 steel is reflected in its:

– Tensile strength: ≥440 MPa
– Yield strength: ≥290 MPa
– Elongation: ≥22%
– Impact energy: ≥27 J at -20°C

These mechanical properties ensure that the steel can withstand high temperatures without losing its structural integrity and mechanical strength. The high tensile and yield strengths make it suitable for applications in high-temperature environments, such as power plants, boilers, and steam pipes.

Overall, the combination of the specific chemical composition and mechanical properties of 13CrMo4-4 steel grade contributes to its impressive heat resistance, making it a reliable choice for applications that require resistance to elevated temperatures.
13CrMo4 4 Steel grade
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