Cast iron and cast steel parts surface finish quality
Cast iron and cast steel parts surface finish quality
During price inquiry, many clients were confused about the surface finish quality, surface smoothness of cast iron and cast steel parts.
Here we will show some photos for casting surface qualities, finish smoothness for lost wax investment castings, shell molding, automatic molding, resin sand, and manual green sand casting processes. So, you could understand how about the surface finish quality about our foundry products.
This is the surface finish comparator from American Foundry Society. Even though we have not started to use this comparator, I hope to introduce it just for your reference.
C-9 Micro-finish Comparator shows surface finishes from 20 to 900 RMS
Surface Finish Capabilities by different Casting Processes
Casting Process |
Surface Smoothness in RMS |
Investment Casting |
50-125 |
Shell Molding Casting |
75-150 |
Die Casting |
90-200 |
Lost Foam Casting |
125-175 |
Vacuum Casting |
150-200 |
Nobake (Resin) Sand |
150-600 |
Green Sand Casting |
250-900 |
Surface quality and smoothness of iron and steel castings
The following photos are showing some gray iron, ductile iron and cast steel castings made by our foundry.
Casting iron:
Casting steel: