GTBL042-App-B GTBL042-Callister-v3 September 21, 2007 20:24
Appendix B / Properties of Selected Engineering Materials • 825
Table B.9 (Continued)
Material Electrical Resistivity,-m
Cast Irons
Gray irons
- Grade G1800 15.0× 10 −^7
- Grade G3000 9.5× 10 −^7
- Grade G4000 8.5× 10 −^7
Ductile irons - Grade 60-40-18 5.5× 10 −^7
- Grade 80-55-06 6.2× 10 −^7
- Grade 120-90-02 6.2× 10 −^7
Aluminum Alloys
Alloy 1100 (annealed) 2.9× 10 −^8
Alloy 2024 (annealed) 3.4× 10 −^8
Alloy 6061 (annealed) 3.7× 10 −^8
Alloy 7075 (T6 treatment) 5.22× 10 −^8
Alloy 356.0 (T6 treatment) 4.42× 10 −^8
Copper Alloys
C11000 (electrolytic tough pitch, annealed) 1.72× 10 −^8
C17200 (beryllium–copper) 5.7× 10 −^8 –1.15× 10 −^7
C26000 (cartridge brass) 6.2× 10 −^8
C36000 (free-cutting brass) 6.6× 10 −^8
C71500 (copper–nickel, 30%) 37.5× 10 −^8
C93200 (bearing bronze) 14.4× 10 −^8
Magnesium Alloys
Alloy AZ31B 9.2× 10 −^8
Alloy AZ91D 17.0× 10 −^8
Titanium Alloys
Commercially pure (ASTM grade 1) 4.2× 10 −^7 –5.2× 10 −^7
Alloy Ti-5Al-2.5Sn 15.7× 10 −^7
Alloy Ti-6Al-4V 17.1× 10 −^7
Precious Metals
Gold (commercially pure) 2.35× 10 −^8
Platinum (commercially pure) 10.60× 10 −^8
Silver (commercially pure) 1.47× 10 −^8
Refractory Metals
Molybdenum (commercially pure) 5.2× 10 −^8
Tantalum (commercially pure) 13.5× 10 −^8
Tungsten (commercially pure) 5.3× 10 −^8
Miscellaneous Nonferrous Alloys
Nickel 200 0.95× 10 −^7
Inconel 625 12.90× 10 −^7
Monel 400 5.47× 10 −^7
Haynes alloy 25 8.9× 10 −^7
Invar 8.2× 10 −^7
Super invar 8.0× 10 −^7
Kovar 4.9× 10 −^7
Chemical lead 2.06× 10 −^7
Antimonial lead (6%) 2.53× 10 −^7
Tin (commercially pure) 1.11× 10 −^7
Lead–tin solder (60Sn-40Pb) 1.50× 10 −^7