### What is the difference between C110 and C153 ductile iron?
#### Answer:
**1. Chemical Composition:** .
- C110 ductile iron has a composition of 3.5-4.0% carbon, 2.2-2.8% silicon, and 0.05-0.2% manganese.
- C153 ductile iron has a composition of 3.5-4.0% carbon, 2.7-3.1% silicon, 0.05-0.3% manganese, and 0.05-0.3% copper.
**2. Mechanical Properties:** .
- C110 ductile iron typically has a tensile strength of 110 ksi and a yield strength of 70 ksi.
- C153 ductile iron typically has a tensile strength of 153 ksi and a yield strength of 103 ksi.
**3. Applications:** .
- C110 ductile iron is commonly used in applications where moderate strength and wear resistance are required, such as pump bodies and valve components.
- C153 ductile iron is used in applications where higher strength and improved corrosion resistance are needed, such as marine components and heavy-duty machinery parts.
**4. Heat Treatment:** .
- C110 ductile iron is typically annealed to improve ductility and machinability.
- C153 ductile iron can be heat-treated for higher strength and hardness, making it suitable for applications requiring superior mechanical properties.
In summary, the main differences between C110 and C153 ductile iron lie in their chemical compositions, mechanical properties, applications, and heat treatment processes. C110 is suitable for moderate strength applications, while C153 offers higher strength and corrosion resistance for more demanding applications.
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