The Chemical Composition Of Nicr15fe Steel Each Plays An Important Role - China

The chemical composition of NiCr15Fe steel each plays the following roles: 1 - **Nickel (Ni) - 15%**: - **Increase toughness and ductility**: Nickel can improve the toughness of steel, allowing it to maintain good mechanical properties at low temperatures.

- **Enhanced corrosion resistance**: Nickel also significantly improves the corrosion resistance of steel in acidic and alkaline environments, especially the oxidation resistance in high-temperature oxidizing media.

2 - **Chromium (Cr) - 15%**: - **Improve corrosion resistance**: Chromium is a key element to enhance the corrosion resistance of steel, especially when a passivation layer is formed, it can effectively prevent surface oxidation.

- **Improve wear resistance**: Chromium can also enhance the hardness and wear resistance of steel, especially in high temperature environments, helping to improve the oxidation resistance of steel.

3 - **Iron (Fe) - Balance**: - **Matrix Element**: Iron is the main component of the steel and forms the matrix of the steel.

It provides essential mechanical properties and strength to steel and works synergistically with other alloying elements to form the desired microstructure.

4 - **Carbon (C) - 0.08% or less**: - **INCREASES STRENGTH AND HARDNESS**: Although in lower amounts, carbon still helps increase the strength and hardness of steel.

The low carbon content ensures the steel's toughness and ductility while avoiding excessive brittleness.

5 - **Manganese (Mn) - 1%**: - **Deoxidizer and Desulfurizer**: Manganese can increase the tensile strength of steel and reduce the harmful effects of sulfur on steel by forming manganese sulfide with sulfur, thereby improving the hot workability of steel.

- **Increases Hardness**: Manganese also increases the hardenability of steel, allowing it to form a more uniform microstructure during heat treatment.

6 - **Silicon (Si) - 1%**: - **Improved oxidation resistance**: Silicon helps improve the oxidation resistance of steel, especially at high temperatures.

It also acts as a reinforcement, improving the strength of the steel.

- **Improve heat treatment properties**: Silicon can improve the hardenability of steel and increase its hardness.

7 - **Phosphorus (P) and Sulfur (S) - 0.03% or less**: - **Controlling Impurities**: Phosphorus and sulfur are usually controlled at very low levels because they can cause increased brittleness in steel, especially at low temperatures.

Therefore, their content is usually strictly controlled to ensure the toughness and ductility of the steel.

Overall, the combination of these components enables NiCr15Fe steel to exhibit excellent mechanical properties and corrosion resistance in high-temperature, corrosive environments, and is widely used in fields that require high corrosion resistance and high-temperature strength, such as chemical equipment, energy equipment, etc.

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• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
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