Modulus of Elasticity and Poisson's s ratio Prop Table 3.2 Modulus of elasticity for various metals, Table 3.3 Poisson's ratio for various metals polymers,and ceramics at room temperature (20'C;68"F).[From ESDU Data ltem No. polymers,and ceramics at room 84041(19841月 temperature (20'C;68"F).[From ESDU Data Item No.84041 Modulus of elasticity,E (19841] Material GPa Mpsi Metals Aluminum 62 9.0 Material Poisson's ratio,v Aluminum alloys" 0 10.2 Aluminum tin 63 Metals Babbitt,lead-based white metal Babbitt,tin-based white metal 器 Aluminum and its alloys" 033 Brasses 100 Aluminum tin Bronze,aluminum 117 17.0 Babbitt,lead-based white metal Bronze,leaded 密 Babbitt,tin-based white metal Bronze,phosphor Brasses 3 Bronze.porous 0 Copper 124 18.0 Bronze 3 Iron,gray cast 109 Bronze,porous 22 Iron,malleable cast 170 3 Iron,spheroidal graphite 15 23.1 Copper Iron,porous 0 11.6 Copper lead Iron,wrought 1 24.7 Iron,cast Magnesium alloys 41 5.9 Iron,porous Steel,low alloys 1 28.4 Steel,medium and high alloys 200 29.0 Iron,wrought 30 Steel,stainless 193 28.0 Magnesium alloys Steel,high speed 212 30.7 Steels 30 Zinc alloys 0 7.3 Polymers Zinc alloys 27 Acetal(polyformaldehyde) 2.7 .39 Polymers Nylons(polyamides) 1.9 .28 Acetal(polyformaldehyde) Polyethylene,high density 9 3 Phenol formaldehyde* Nylons(polyamides) .40 7.0 1.02 Rubber,natural' .004 .0006 Polyethylene,high density 35 Ceramics Phenol formaldehyde Alumina(Al2O3) 390 56.6 Rubber .50 Graphite 7 3.9 Cemented carbides 450 65.3 Ceramics Silicon carbide(SiC) 450 65.3 Alumina(Al2O3) .28 Silicon nitride (SigN) 314 45.5 Graphite,high strength Cemented carbides .19 Structural alloys. Silicon carbide(SiC) 19 bFor bearings. Silicon nitride(SigN4) 26 Precipitation-hardened alloys up to 211 GPa(30 Mpsi]. dSome alloys up to 96 GPa (14 Mpsi). Structural alloysME 350 9 Modulus of Elasticity and Poisson’s ratio Properties 2