About Us | Metal Casting | Casting Workshop | Machining Workshop | Quality Inspection | Contact Us  
   

Ductile and Grey Cast Iron Bearing Housing Material Comparison

 

The main housing materials for the current standard bearing units are gray cast iron FC200 and ductile iron FCD450.

The FC200 material contains black graphite and graphite distributed as shown in photo 1. When heavy shock loads are applied to the housing, cracks spread along the black graphite strands and the housing may fracture.

In FCD450 material, the black graphite and graphite nodules are distributed as shown photo 2. This black graphite distribution can prevent the spreading of cracks. Also the shock resistance at low temperature, of FCD450 is superior to that of FC200.

Comparison of characteristics of ductile cast iron and gray cast iron

Material

Symbol

Tensile Strength N/mm2

Elongation %

Hardness HB

Ductile Cast Iron

FCD450

Minimum 450

Minimum 10

143~217

Gray Cast Iron

FC200

Minimum 200

Not Specified

Maximum 223

30 mm not-machined test piece


This article is from our Dandong Foundry's Ductile and Grey Cast Iron Bearing Housing Material Comparison

 

HOME PAGE | CASTING BLOG | CONTACT US

 

Liaoning Borui Machinery Co., Ltd. All rights reserved.
Add: No.1-4-6, Jianshe Road, Qianyang, Donggang City, Dandong, Liaoning, China 
                  Cast Iron Foundry | Sitemap