WBH10P WBH25P WBH30P WBK40U CW2015 CW3020 Advanced Materials for Hard Turning Overview Advanced Materials for Hard Turning PcBN [%] Low High Ceramics Finishing Hardened Steels Interrupted Heavy Machining Hard Turning Grade Selection Interrupted cutting? No Yes Hardness >62 HRC Yes No Ra<0,8μm; Rz<4μm Yes No Forged component? Yes No Large batches? Yes No NOTE: For heavy machining, WBK40U™ and CW3020™ are the ideal choices. CW2015 B170 widia.com