Low-temperature Mechanical Properties of Wrought Copper and Copper-base Alloys 297 



TABLE 3 

 LEADED BRASSES 



« Composition of alloy and previous history not available. 

 *• Impact-Charpy on a lO-sq. mm. specimen with a sharp notch. 



« All tensile tests on specimens 5 mm. (0.197 in.) in diameter; elongation measured on a 50-mm. C1.97-in.) gage length; yield strength determined on Arasler 

 Recorder; impact — kilogram-meters per square centimeter on specimen 10 by 8 by 100 mm. having a 45-deg. sharp V notch. 

 <* Previous history not available; impact — kilogram- meters per square centimeter. Hardness — brittle hardness. 



