Chapter W: W Working Stress

W

tungsten (element)

WATER

boiling point = 100 C, 212 F

density: specific weight *

freezing point = 0 C, 32 ?F

gal = 8.33 lb

heat of fusion = 144 Btu/lb

heat of vaporization = 970 Btu/lb

heat required to evaporate 1 lb at 212 F =

970.89 Btu	0.2844 kWh
1.0237 E + 06 J	284.4 Wh

heat required to raise temperature of 1 lb from 62 to 212 F =

150.02 Btu	0.044 kWh
1.58 E + 05 J	44 Wh

melting point = 0 C, 32 F

specific gravity = 1.0

specific heat = 1 Btu/lb/ F

specific volume, volume =

• 1.000 cm ³/g at 0 C, 32 F

• 0.01602 ft ³/lb at 0 C, 32 F

specific weight, density, weight =

1 g/cm 3 at 0 C, 32 F	8.3457 lb/gal at 0 C, 32 F
62.43 lb/ft 3 at 0 C, 32 F	8.33 lb/gal at 20 C, 68 F
62.317 lb/ft 3 at 20 C, 68 F

viscosity (absolute) at 68.4 F = 1 cP

volume: specific volume *

weight

specific weight *

watt

ELECTRICAL

watt =

3.414 Btu/h	0.001341 hp
0.05692 Btu/min	1.0194 E-04 hp (boiler)
9.484 E-04 Btu/s	0.00136 hp (metric)
1 E + 07 dyn-cm/s	0.01 hW
1 E + 07 erg/s	1 J/s
2655 ft-lb/h	0.860 kg-cal/h
44.26 ft-lb/min	0.01434 kg-cal/min
0.7376 ft-lb/s	2.39 E-04 kg-cal/s
1424 ft-pdl/min	0.10197 kg-m/s
860.38 g-cal/h	0.001 kW
14.34 g-cal/min	35.52 1-atm/h
0.239 g-cal/s	1 E-06 MW
10,197 g-cm/s