Roller This RFQ was sourced on www.MFG.com in USA for Case Hardening Buyer needs to case harden shaft 3" diameter x 43" long to 50 rockwell C. Buyer to provide the shaft. Buyer Information Industry City/Region Norfolk, Nebraska Country USA RFQ RFQ Number 496142 Material Alloy Steel Material Grade 1045 Technical Specifications Category Case Hardening Dimensions The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services and are members of the MFG.com community. For more information visit http://www.mfg.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your quoting experience Case Hardening: Case Hardening is the process of hardening the surface of a metal, most typically low-carbon steel. Once the temperature of the metal is elevated, it is infused with elements.