
Compacted Graphite Iron (CGI): Properties, Uses and CNC Machining
Evaluate compacted graphite iron for engine, powertrain and industrial parts. Learn CGI properties, standards, machining factors and buyer specifications.
Cast Iron is one of the most widely used engineering materials for CNC machining due to its excellent machinability, dimensional stability, vibration damping, and cost-effectiveness. Common cast iron grades include ASTM A48 Class 30, Class 35, Class 40, and ASTM A536 ductile iron grades such as 65-45-12 and 80-55-06. Cast iron CNC machined parts are extensively used in machine tool components, pump housings, valve bodies, gearbox casings, engine blocks, bearing supports, hydraulic manifolds, and industrial equipment. With its superior wear resistance and compressive strength, cast iron is an ideal material choice for precision-machined components requiring durability, rigidity, and long service life in demanding industrial applications. We provide CNC machining services for a wide range of cast iron grades, including Gray Iron, Ductile Iron, and Austempered Ductile Iron (ADI).

Evaluate compacted graphite iron for engine, powertrain and industrial parts. Learn CGI properties, standards, machining factors and buyer specifications.

Compare ductile iron grades, properties, casting options and CNC machining factors to choose the right material for reliable, cost-effective engineered parts.

Compare Austempered Ductile Iron (ADI) properties, grades, heat treatment, CNC machining guidance and sourcing factors to specify stronger, lighter, wear-resistant cast components with confidence.

Compare gray iron grades, properties, casting design factors and CNC machining considerations to source reliable gray iron castings for industrial applications.

Compare ASTM A897 cast iron grades, mechanical properties, CNC machining factors and sourcing criteria for reliable austempered ductile iron castings.

Compare ASTM A536 ductile iron grades, mechanical properties, machinability, heat treatment options and purchasing checks to source reliable cast iron parts with fewer quality risks.

Compare ASTM A48 cast iron classes, tensile strength, machinability, CNC guidance, and sourcing considerations to specify reliable gray iron castings with fewer engineering risks.