The advantages & disadvantages of gray cast iron

Written by tim hesse
  • Share
  • Tweet
  • Share
  • Pin
  • Email
The advantages & disadvantages of gray cast iron
Gray cast iron can be made into pipes. (cast iron pipe image by jimcox40 from Fotolia.com)

Gray iron is a versatile, low-cost alloy with a long history and many manufacturing applications. Gray iron's high carbon content gives it a dull, grey appearance with low reflectivity. Common uses for grey cast iron include pipes, cookware and automobile parts.

Other People Are Reading

Advantages

Gray iron's high carbon content makes it easy to melt, weld, machine and cast using common metalworking processes. Gray iron contains graphite flakes that provide a high level of stability and minimise shrinking during the casting process. The metallurgy of grey iron also makes it resistant to corrosion. Gray iron's high conductivity makes it ideal for cookware.

Disadvantages

Gray cast iron's extremely low tensile strength makes it a poor shock resistor relative to newer, less rigid iron alloy varieties. Blasting grey iron can weaken castings by causing residual stress. Gray iron may be too brittle for some applications, including instances when a casting must be especially thin or flexible.

Density

Gray iron's density makes it excellent for some applications, but inappropriate for others. For example, high density grey cast iron is an excellent choice for pipes, but a cast iron bicycle would be too heavy and too rigid to ride safely.

Don't Miss

Filter:
  • All types
  • Articles
  • Slideshows
  • Videos
Sort:
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the eHow.co.uk site, you consent to the use of cookies. For more information, please see our Cookie policy.