Chemical Composition Base Element Cu (Copper) Al (Aluminum) 0.25 % (maximum) Cu (Copper) 55 to 58 % Fe (Iron) 0.35 % (maximum) Mn (Manganese) 2 to 3.5 % Ni (Nickel) 1.5 to 2.5 % Pb (Lead) 0.25 to 1.5 % Si (Silicon) 0.5 to 1.5 % Zn (Zinc) 32.4 to 40.8 % (estimate) Balance Zn (Zinc) Composition Note Zn is listed as a Balance element for this material, but its % value is not listed in the specification. The value shown is a calculated one. Mechanical Properties Yield Strength 379 MPa Ultimate Tensile Strength 517 MPa Elongation 19 % strain Rockwell Hardness B scale 81 Other Information Material Class Nonferrous Alloy Country USA Description Half hard 1 in. rod: 75,000 TS; 55,000 YS; 19 El; 81 HRB. For gear blanks and hydraulic cylinder barrels. Free cutting bearing bronze. Designation BOHNALLOY R72N Specification Type Manufacturer's Specification Specification Status Active Source Woldman's Engineering Alloys 9th ed. J. Frick Editor, ASM International 2000 Available forms Bearing, Rod Similar Alloys Click here to find similar alloys Links Organizations Bohn Extruded Products Div.
No warranty is given for the accuracy of these data Copyright © 2024 ASM International®

Chemical Composition