Bending Properties of Wrought Copper and Copper-base Alloys 



325 



TABLE 6 



RECOMMENDED RADII FOR FORMING 90-DEG= BENDS IN LEADED HIGH-BRASS SHEET 



According to Straw, Helfrick, and Fischnipp*^'" 



Copper, 64.0-67.0%; lead, 0.80-1.10%; zinc, balance 



■ Based on data by Gohntss). 



TABLE 7 



RECOMMENDED RADH FOR FORMING 90-DEG. BENDS IN CLOCK BRASS (ENGRAVER'S BRASS) 



According to Straw, Helfrick, and Fischrupp<*^> 



Copper, 61 to 64%,; lead, 1.25-2.0%; zinc, balance 



" None of radii tested was suitable. 

 & Based on data by Gohn^ss'. 



