Nickel wire 368/187 0.10
Lead (99.95% pure, unoxidized) 260/127 0.06
Copper 390/199 0.18
1110/599 0.19
Steel 390/199 0.52
1110/599 0.57
Zinc (galvanized sheet iron, bright) 82/28 0.23
Brass (highly polished) 476/247 0.03
Brass (hard rolled, polished w/lines) 70/21 0.04
Iron galvanized (bright) ——- 0.13
Iron plate 68/20 0.69
Rolled sheet steel 71/21 0.66
Oxidized iron 212/100 0.74
Wrought iron 70/21 0.94
Molten iron 2550-3270/1299-1399 0.29
Copper (polished) 70-242/21-117 0.02
Copper (scraped, shiny, not mirrored) 72/22 0.07
Cooper (plate,
Brick (red, rough) 70/21 0.93
Brick (silica, unglazed rough) 1832/1000 0.80
Concrete ——— 0.94
Glass (smooth) 72/22 0.94
Granite (polished) 70/21 0.85
Marble (light gray, polished) 72/22 0.93
Asbestos board 74/23 0.96
Asbestos paper 100/38 0.93
700/371 0.95
Asphalt (paving) 39/4 0.97
13
