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Turning inserts and grades for cast iron

When selecting insert grades for cast iron machining, it’s important to understand the mechanical properties of the various types of cast iron. Find reliable insert grades for your cast iron turning operation that offer long tool life at a high metal removal rate.

GC3210

This CVD-coated cemented carbide grade offers high flank wear resistance and is best for good to average machining conditions in all cast iron materials for continuous and interrupted cuts.

Benefits and f​eatures​

  • Resists flank wear
  • Suitable for all cast iron materials
  • Continuous and interrupted cuts

Two grades covering all cast iron turning operations

Download the brochure here

Machining cast iron materials

What are the differences between nodular and grey cast iron? Learn more about cast iron varieties and how to best machine them.

Successful chip control

Chip control is one of the key factors in turning. Find out how to maximize your productivity with some of the most common chip breaking methods.

Achieve maximum tool life

Learn more about the three machining parameters that have the biggest effect on tool life.

Find your grade

Our cast iron insert grade assortment consists of CVD-coated carbide grades and Ceramic grades for various machining conditions. Use the information below to find the right grade for your production.

Application area
Machining conditions: GoodAverageDifficult
​​

GC3210

CVD-coated grade with a thick, smooth, wear-resistant coating and very hard substrate. Ideal for high-speed turning of nodular cast iron.

CoroTurn® 107: First choice for external and internal machining of small and slender components.

T-Max® P​: First choice for general turning from small components to heavy machining.

See complete assortment

GC3225

CVD-coated grade with high edge line security. Average to difficult machining conditions. Suitable for light to heavy interrupted cuts.​

CoroTurn® 107: First choice for external and internal machining of small and slender components.

T-Max® P: First choice for general turning from small components to heavy machining.

See complete assortment

CC6190

Pure silicon nitride-based ceramic grade. Excellent wear resistance at high temperatures in high-speed roughing to finishing.

T-Max® P: First choice for general turning from small components to heavy machining.

See complete assortment

Complementary grades

CB7525

Extremely hard cubic boron nitride (CBN) grade with high edge toughness and good wear resistance. Optimal for high speed finishing of grey cast iron under both continuous and interrupted cuts.

View complete assortment

GC3005

CVD-coated grade with wear and heat resistance suitable for finishing and semi-finishing at high cutting speeds in high alloy steel.

View complete assortment

GC4315

CVD-coated grade suitable from roughing to finishing in applications for both light intermittent cuts to continuous cuts.

View complete assortment

CB7925

CBN grade with good edge toughness and wear resistances for continuous and interrupted cuts in grey cast iron and chilled iron.

View complete assortment

CT5015

Uncoated cermet grade, resistant to built-up edge and plastic deformation. Use for finishing for high surface quality or low cutting forces.​

View complete assortment

H13A

Uncoated carbide grade combines good abrasive wear resistance and toughness in low to moderate speeds and high feeds.

View complete​ assortment​

Highlights

Turning calculator app

Designed to assist engineers, programmers and machinists, this app offers valuable machining and cost calculations.

Struggling to find the right tool for the job?

Let CoroPlus™ ToolGuide help you get quick and accurate tool recommendations – on all your devices!

Turning handbook

Your essential resource for general turning, parting and grooving and threading.

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