Understanding the High-temperature Strength of 13CrMo4-4 Steel Alloy

Chemical Composition of 13CrMo4-4 Steel Alloy:

The chemical composition of 13CrMo4-4 steel alloy is as follows:

– Carbon (C): 0.08-0.18%
– Silicon (Si): max 0.35%
– Manganese (Mn): 0.40-1.00%
– Phosphorus (P): max 0.025%
– Sulfur (S): max 0.015%
– Chromium (Cr): 0.70-1.15%
– Molybdenum (Mo): 0.40-0.60%

Mechanical Properties of 13CrMo4-4 Steel Alloy:

The main mechanical properties of 13CrMo4-4 steel alloy at high temperatures are as follows:

– Yield Strength: The minimum yield strength of 13CrMo4-4 steel at elevated temperatures is typically around 310-450 MPa.
– Tensile Strength: The ultimate tensile strength of the alloy at high temperatures is typically around 440-590 MPa.
– Elongation: The elongation of 13CrMo4-4 steel alloy is generally about 22-25%.
– Impact Toughness: The Charpy V-notch impact toughness of the alloy at room temperature is typically around 40-60 Joules.

These mechanical properties ensure the structural integrity and resistance to deformation of 13CrMo4-4 steel alloy when subjected to high temperatures, making it suitable for applications in power generation, chemical processing, and other industries that require materials with good high-temperature strength.
13CrMo4 4 Steel grade
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