Got this table with a google search since my materials properties book is at work. It appears that Nickle silver wins, but there doesn't appeart to be much difference. I don't howerver know what the percentage composition that any of the rail mfg. people use in their product. If you had a sample of each you could to a cantilever test by trial and error to determine what amount of deflection created permanent deformation. If this deflection significatly greater than the deflection your rail would need there shouldn't be a problem.
Product Youngs Modulus of Elasticity (tension) Beryllium Copper Alloy 25 19,000,000,000 Brass 70/30 16,000,000,000 Bronze Grade A 5% 15,000,000,000 Bronze Grade C 8% 16,000,000,000 Electrolytic Copper 16,000,000,000 Nickel Silver 18% 18,000,000,000 Mechanical Properties Nickel Silver 18% Tensile Strength P.S.I. - Hard and Aged N/A Tensile Strength P.S.I. - Spring Temper 114,000 Fatigue Strength P.S.I. - Hard and Aged N/A Fatigue Strength P.S.I. - Spring Temper 25,000 Mechanical Properties Bronze Grade C 8% Tensile Strength P.S.I. - Hard and Aged N/A Tensile Strength P.S.I. - Spring Temper 112,000 Fatigue Strength P.S.I. - Hard and Aged N/A Fatigue Strength P.S.I. - Spring Temper 26,000 >>> Does anyone know if nickel silver is more flexible than non corrosive brass? <<<< S-Trains list sponsor: http://www.americanflyertrains.com All the Flyer you desire...books and accessories too! To UNSUBSCRIBE from this list send a note to [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
