Designer's Guide Results
The following is a list of materials, selected and ranked per your specification.

MaterialModulus of Elasticity
Tungsten Carbide90 x 106 psi
Titanium DiBoride62 - 78 x 106 psi
CVD Silicon Carbide68 x 106 psi
Sapphire68 x 106 psi
Young's
Silicon Carbide Sintered58 - 65 x 106 psi
Silicon Carbide Reaction Bonded57 - 65 x 106 psi
Boron Carbide51 - 66 x 106 psi
Alumina 99.9%55 x 106 psi
Alumina 99.5%48 - 54 x 106 psi
Silicon Nitride45 - 49 x 106 psi
Zirconia Toughened Alumina (ZTA)45 - 49 x 106 psi
Reference Materials
Tool Steel30 - 34 x 106 psi
Stainless Steel28 x 106 psi
Diamondn/a

All properties values are at room temperature unless otherwise noted. Engineering data are representative, and are not intended as absolute nor warrantable. Data shown is blended from multiple sources and therefore illustrates the marketplace. The relative rankings are approximate and are based on representative values if the particular material has a range of values for a given property.

Wikipedia Definition(s) :  Modulus of Elasticity;

Check Different Properties

Please Note:  This Designers guide is compiled of materials currently machined by Insaco and a few others included for reference.