Overview
What continuous cast iron bar is, how it is produced and why it out-performs sand cast blanks for machined parts.
Overview
Cast iron bar is a versatile engineering material produced through the continuous casting process, where molten iron is poured into a water-cooled graphite die and drawn downward as it solidifies. Unlike sand-cast individual parts, continuous cast bar exhibits a uniform, fine-grained microstructure throughout its entire length — free from the porosity, inclusions, and hard spots that plague conventional sand castings.
This consistency makes continuous cast iron bar the material of choice for high-volume CNC machining operations where predictable tool life and consistent part quality are non-negotiable.
At Force Machining, we supply continuous cast iron bars in gray iron (GG20–GG30) and ductile iron (GGG40–GGG60) grades across a comprehensive range of profiles, diameters, and lengths.
Download the Cast Iron Bar specification sheet
Full grades, mechanical properties, tolerances and stock sizes in a single PDF. Share a few details to receive it.
A cost-saving alternative to low- and medium-carbon steels — similar strength with excellent free-machining properties.
Get more info on our Ductile Irons
Flake-graphite grades (ASTM Type VII) for strength, vibration damping, wear resistance and a clean machining finish.
Get more info on our Gray Irons