Examining the Thermal and Mechanical Characteristics of 12Ni19 Steel

The chemical composition of 12Ni19 steel is as follows:

– Carbon (C): 0.15%
– Silicon (Si): 0.40%
– Manganese (Mn): 0.80%
– Phosphorus (P): 0.030%
– Sulfur (S): 0.030%
– Nickel (Ni): 11.00-12.50%
– Chromium (Cr): 0.30-0.70%
– Molybdenum (Mo): 0.20-0.40%
– Copper (Cu): 0.30%
– Vanadium (V): 0.05%

The mechanical properties of 12Ni19 steel include:

– Tensile strength: 620-800 MPa
– Yield strength: 450-600 MPa
– Elongation: 18-23%
– Hardness: 197-250 HB
– Impact energy: min 47 J (in the transverse direction)

The thermal characteristics of 12Ni19 steel can be examined through various tests and analyses, including:

– Thermal conductivity: determining the steel’s ability to conduct heat, which affects its heat transfer and insulation properties.
– Coefficient of thermal expansion: measuring how the steel expands or contracts with a change in temperature, which is crucial for applications involving temperature fluctuations.
– Specific heat capacity: calculating the amount of heat required to raise the temperature of the steel, which can help in understanding its thermal behavior and response to heating or cooling.
– Thermal diffusivity: assessing the rate at which heat is conducted through the steel, which is important in applications that require efficient heat transfer.

These characteristics can be investigated through laboratory experiments and analysis techniques such as thermal conductivity testing, dilatometry, differential scanning calorimetry, and thermal diffusivity measurements.
12Ni19 Steel grade
1698261021