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Callister - An introduction - 8th edition

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Appendix B / Properties of Selected Engineering Materials • A21<br />

Table B.7<br />

Room-Temperature Thermal Conductivity Values for<br />

Various Engineering Materials<br />

Thermal Conductivity<br />

Material W/m .K Btu/ft .h .F<br />

METALS AND METAL ALLOYS<br />

Plain Carbon and Low-Alloy Steels<br />

Steel alloy A36 51.9 30<br />

Steel alloy 1020 51.9 30<br />

Steel alloy 1040 51.9 30<br />

Stainless Steels<br />

Stainless alloy 304 (annealed) 16.2 9.4<br />

Stainless alloy 316 (annealed) 15.9 9.2<br />

Stainless alloy 405 (annealed) 27.0 15.6<br />

Stainless alloy 440A (annealed) 24.2 14.0<br />

Stainless alloy 17-7PH (annealed) 16.4 9.5<br />

Cast Irons<br />

Gray irons<br />

• Grade G1800 46.0 26.6<br />

• Grade G3000 46.0 26.6<br />

• Grade G4000 46.0 26.6<br />

Ductile irons<br />

• Grade 60-40-18 36.0 20.8<br />

• Grade 80-55-06 36.0 20.8<br />

• Grade 120-90-02 36.0 20.8<br />

Aluminum Alloys<br />

Alloy 1100 (annealed) 222 128<br />

Alloy 2024 (annealed) 190 110<br />

Alloy 6061 (annealed) 180 104<br />

Alloy 7075-T6 130 75<br />

Alloy 356.0-T6 151 87<br />

Copper Alloys<br />

C11000 (electrolytic tough pitch) 388 224<br />

C17200 (beryllium–copper) 105–130 60–75<br />

C26000 (cartridge brass) 120 70<br />

C36000 (free-cutting brass) 115 67<br />

C71500 (copper–nickel, 30%) 29 16.8<br />

C93200 (bearing bronze) 59 34<br />

Magnesium Alloys<br />

Alloy AZ31B 96 a 55 a<br />

Alloy AZ91D 72 a 43 a<br />

Titanium Alloys<br />

Commercially pure (ASTM grade 1) 16 9.2<br />

Alloy Ti–5Al–2.5Sn 7.6 4.4<br />

Alloy Ti–6Al–4V 6.7 3.9<br />

Precious Metals<br />

Gold (commercially pure) 315 182<br />

Platinum (commercially pure) 71 b 41 b<br />

Silver (commercially pure) 428 247

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