Tantalum (Cold Worked)

Hardness, Brinell 195 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 56 Converted from Vickers

Hardness, Rockwell B 92 Converted from Vickers

Hardness, Rockwell C 12 Converted from Vickers

Hardness, Vickers 200

Tensile Strength, Ultimate 900 MPa

 

Tungsten

Hardness, Brinell 294 Estimated from Vickers

Hardness, Knoop 318 Estimated from Vickers

Hardness, Rockwell A 66 Estimated from Vickers

Hardness, Rockwell C 31 Estimated from Vickers

Hardness, Vickers 310

Tensile Strength, Ultimate 980 MPa

Tensile Strength, Yield 750 MPa 0,2% Offset

Modulus of Elasticity 400 GPa

Poisson's Ratio 0,28  

Shear Modulus 175 GPa Calculated

Shear Strength 400 MPa Average value for W blanks

Tungsten (drawn wire)

Hardness, Brinell 444 Converted from Vickers for 3000 kg load/10 mm ball Brinell test Drawn and annealed

Hardness, Knoop 505 Estimated from Vickers,

Hardness, Rockwell A 74 Drawn and annealed

Hardness, Rockwell C 47 Drawn and annealed

Hardness, Vickers 480 Drawn and annealed

Tensile Strength, Yield 450 MPa

 

Rhenium (Annealed)

Hardness, Brinell 165 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 52 Converted from Vickers

Hardness, Rockwell B 85 Converted from Vickers

Hardness, Rockwell C 3 Value below normal HRC range, for comparison only

Hardness, Vickers 170

Tensile Strength, Ultimate 1070 MPa Value at 800°C is 620 MPa, Value at 1200°C is 410 MPa

Tensile Strength, Yield 290 MPa

Elongation at Break 15–25%

Modulus of Elasticity 469 GPa

Poisson's Ratio 0,296

Shear Modulus 176 GPa

Rhenium (Deformed)

Hardness, Brinell 500 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 76 Converted from Vickers

Hardness, Rockwell C 50 Converted from Vickers

Hardness, Vickers 550 15% Cold-Worked

Tensile Strength, Ultimate 2100 MPa

Elongation at Break 1–3%

Modulus of Elasticity 460 GPa

 

Osmium (Annealed)

Hardness, Brinell 293 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 66 Converted from Vickers

Hardness, Rockwell C 30 Converted from Vickers

Hardness, Vickers 300

Tensile Strength, Ultimate 1000 MPa

Modulus of Elasticity 560 GPa

Osmium (Cold-Worked)

Hardness, Brinell 580 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 80

Hardness, Rockwell C 57

Hardness, Vickers 670  

Osmium (Arc-Melted)

Hardness, Brinell 722 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Knoop 822 Converted from Vickers

Hardness, Rockwell A 83,4 Converted from Vickers

Hardness, Rockwell C 64 Converted from Vickers

Hardness, Vickers 800

 

Iridium (Annealed)

Hardness, Brinell 352 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 69

Hardness, Rockwell C 37

Hardness, Vickers 370

Tensile Strength, Ultimate 1000 MPa

Modulus of Elasticity 524 GPa

Poisson's Ratio 0,26  

Shear Modulus 232 GPa Calculated

Iridium (Cold-Drawn)

Hardness, Brinell 565 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 80

Hardness, Rockwell C 56

Hardness, Vickers 650

Tensile Strength, Ultimate 2000 MPa

 

Platinum (CP Grade, Annealed)

Hardness, Vickers 40

Tensile Strength, Ultimate 125–165 MPa

Elongation at Break 35% in 50 mm

Modulus of Elasticity 171 GPa static in tension

Poisson's Ratio 0,39

Shear Modulus 62 GPa Calculated value

Platinum (CP Grade, Hard Drawn–50% Cold Worked)

Hardness, Knoop 103 Estimated from Vickers,

Hardness, Rockwell B 49 Estimated from Vickers,

Hardness, Vickers 90

Tensile Strength, Ultimate 205–240 MPa

Elongation at Break 1–3% in 50 mm

Modulus of Elasticity 156 GPa static in tension

Shear Modulus 56 GPa Calculated value

Platinum (Thermocouple Quality, Annealed)

Tensile Strength, Ultimate 143 MPa

 

Gold

Hardness, Vickers 25

Tensile Strength, Ultimate 120 MPa Annealed

Elongation at Break 30%

Modulus of Elasticity 77,2 GPa 60% Cold Worked

Poisson's Ratio 0,42

Shear Modulus 32 GPa 60% Cold Worked; Calculated Value

 

Thallium

Hardness, Brinell 2

Hardness, Vickers 2

Tensile Strength, Ultimate 7,5 MPa

Elongation at Break 40% in 125 mm

 

Lead

Hardness, Brinell 4,2 Cast

Hardness, Vickers 5

Tensile Strength, Ultimate 18 MPa

Modulus of Elasticity 14 GPa

Poisson's Ratio 0,42

 

Bismuth

Hardness, Brinell 7

Modulus of Elasticity 31,7 GPa

Poisson's Ratio 0,33

Shear Modulus 14 GPa Calculated

 

Thorium

Hardness, Vickers 35–114 References report a wide range of values

Tensile Strength, Ultimate 200 MPa

Tensile Strength, Yield 144 MPa 0,2% offset

Elongation at Break 34%

Modulus of Elasticity 73,1 GPa

Compressive Yield Strength 200 MPa Approximately equal to tensile

Bulk Modulus 57,7 GPa

Poisson's Ratio 0,27

Fatigue Strength 97 MPa reversed bend test endurance limit

Shear Modulus 28 GPa

 

Protactinium

Bulk Modulus 157 GPa

 

Uranium (Cast)

Hardness, Brinell 185 Converted from Vickers for 3000 kg load/10 mm ball Brinell test Unspecified heat treatment

Hardness, Rockwell A 55 Unspecified heat treatment

Hardness, Rockwell B 90 Unspecified heat treatment

Hardness, Rockwell C 10 Unspecified heat treatment

Hardness, Vickers 190 Unspecified heat treatment

Tensile Strength, Ultimate 400 MPa

Tensile Strength, Yield 200 MPa

Elongation at Break 4%

Modulus of Elasticity 190 GPa

Poisson's Ratio 0,22

Shear Modulus 86 GPa Calculated

Uranium (Beta-Annealed)

Tensile Strength, Ultimate 615 MPa

Uranium (Wrought Α Phase)

Tensile Strength, Ultimate 1150 MPa

Tensile Strength, Yield 740 MPa

Elongation at Break 14%

 

Neptunium

Hardness, Vickers 346

Bulk Modulus 118 GPa

Shear Modulus 80 GPa

 

Plutonium

Hardness, Brinell 242 Converted from Vickers for 3000 kg load/10 mm ball Brinell test

Hardness, Rockwell A 62

Hardness, Rockwell C 22

Hardness, Vickers 250  

Tensile Strength, Ultimate 400 MPa Cast α

Tensile Strength, Yield 275 MPa Cast α

Elongation at Break 0,2–0,5% Cast α

Modulus of Elasticity 96,5 GPa Cast

Compressive Yield Strength 415 MPa

Ultimate Compressive Strength 830 MPa

Poisson's Ratio 0,15–0,21

Fatigue Strength 90 MPa 100,000,000 cycles, rotating beam

Shear Modulus 45 GPa

Americium

Bulk Modulus 45 GPa

Curium

Bulk Modulus 37 GPa

 

Berkelium

Bulk Modulus 52 GPa

Californium

Bulk Modulus 50 GPa

 

Einsteinium

Bulk Modulus 15 GPa Estimated

 

Fermium

Bulk Modulus 15 GPa Estimated