CHAPTER XIII 



FATIGUE AND CORROSION -FATIGUE PROPERTIES OF WROUGHT COPPER 

 AND COPPER-BASE ALLOYS 



TABLE 1 

 COPPER 



" 0.50% extension yield strength 47,600 p.s.i.; 0.20% offset yield strength 46,600 p.s.i.; modulus of elasticity 17.77 X 106 p.g 



(-0.50% extension yield strength 49,400 p.s.i.; 0.20% offset yield strength 49,000 p.s.i.; modulus of elasticity 17.8 X 10« p.s.i 



e Trace of iron, nickel, and tin. 



«*0.01% iron and tin. 



« 0.01 % phosphorus. 



/Corrosion-fatigue limit, carbonated water, 17,000 p.s.i.; salt water (brackish), 16;500 p.s.i. 



