Critical Temperatures for Various Superconductors

Material

Temperature (°K)

Temp. (°C)

Temp. (°F)

Zn

0.88

-272.27

-458.086

Al

1.19

-271.96

-457.528

Sn

3.72

-269.43

-452.974

Hg

4.15

-269.00

-452.200

Pb

7.18

-265.97

-446.746

Nb

9.46

-263.69

-442.642

Nb3Sn

18.05

-255.10

-427.180

Nb3Ge

23.2

-249.95

-417.910

YBa2Cu3O7

90

-183.15

-297.670

Bi-Sr-Ca-Cu-O

105

-168.15

-270.670

Tl-Ba-Ca-Cu-O

125

-148.15

-234.670