Spiegeleisen is an alloy of

Options

A. `Cu+Zn+Ni`
B. `Ni+Cr`
C. `Mn+Fe+C`
D. `Fe+Cr+Ni`

Answer

To solve the question regarding the composition of Spiegeleisen, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Spiegeleisen**:
- Spiegeleisen is a type of pig iron that is known for its high manganese content.

2. **Determine the Composition**:
- Spiegeleisen typically contains about 15% manganese.
- In addition to manganese, it also contains small amounts of carbon, silicon, and iron.

3. **Recognize Other Names**:
- Spiegeleisen is also referred to as "Specular Iron" or "Spiegel Iron".

4. **Application**:
- It is primarily used in the manufacture of steel, particularly in the Bessemer process, which is a method for converting pig iron into steel.

5. **Conclusion**:
- Therefore, Spiegeleisen is an alloy primarily composed of manganese, along with iron and carbon.

### Final Answer:
Spiegeleisen is an alloy of manganese, iron, and carbon.

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