Quadco "XR" Special Steel          Analysis (Typical) C .35   CR .85   W .45   MO .54   SI .25   MN .75   X-R Special is a pre-hardened (RC 28-32)* steel. Often used in this hardness range for many tool room and maintenance applications.   X-R Special Steel can be re-hardened to various hardness ranges by flame hardening, carburizing, nitriding or through hardening to a higher hardness range.   All melts of X-R Special are electric furnace-vacuum degassed to provide optimum cleanliness of the finish product.   X-R Special Steel possess a balance chemistry providing high tensile properties and exceptional resistance to premature fatigue failure. X-R Special is a superior substitute for 8620, 4140, 4340 and 6150 Approved:  Ford Motor Company - M3A-19 Daihlmer-Chrysler Corporation - NP-2008 General Motors Corp. Hydramatic Division - MSS-30-MSS-31-F-33 Recommended applications for X-R Special Steel - By Industry Cold Heading Die Casings Cams Punch Holders Gears Quill Blocks Cranks Feeder Rolls Studs Cold Forming Die Retainer Rings Cams Bolster Blocks Gears Machine Repair Parts   Conveyors/Automation Wear Strips Transfer Rods Wear Pads Gear Racks Dogs-Drive Conveyors Pinions Piston Rods Locating Pins Die Casting Industry Toggle Pins Ejector Cams Plunger Rods Die Holder Blocks   Forging Industry Friction Bars Adjusting Nuts Adjusting Studs Iron/Steel Metal Casting Pins Hard Spots Bushings Alignment Pins Wear Strips Stripper Pins   Machining Industry Collets Chuck Jaws Diaphragm Chucks Cutter Bodies Spindles Arbors Powder Metals Cams Ejector Rods Retainer Rings Wiper Cams Actuator Arms Bolster Plates (Presses) Upper & Lower Ejection Spiders Metal Stamping Press Back Shafts Brake Dies Clutch Shafts Clutch Dogs Guide Posts (Dies) Ejector Pins Die Clamps Bolster Plates Stripper Dies Die Clamp Washers

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