Shanghai Jingdian Technology C., Ltd

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: 

  

 

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