Thermal Conductivity of some common Materials and Gases
Page 1 of 4
Resources, Tools and Basic Information for Engineering and Design of Technical Applications!
Search
Custom Search
Thermal Conductivity of some common Materials and Gases
Home
• Acoustics
• Air Psychrometrics
• Basics
• Combustion
• Drawing Tools
• Dynamics
• Economics
• Electrical
• Environment
• Fluid Mechanics
• Gas and Compressed Air
• HVAC Systems
• Hydraulics and
Pneumatics
• Insulation
• Material Properties
• Mathematics
• Mechanics
• Miscellaneous
• Physiology
• Piping Systems
• Process Control
• Pumps
• Standards Organizations
• Steam and Condensate
• Thermodynamics
• Water Systems
Unit Converter
Free Industry
Magazines
Energy Efficiency &
Technology
Microwaves & RF
Offshore Engineer
Thermal conductivity of some common materials and gases - insulation, aluminum, asphalt,
brass, copper, steel and many more ..
Sponsored Links
Sponsored Links
Thermal conductivity is the quantity of heat transmitted through a unit thickness in a direction normal to a surface
of unit area, due to a unit temperature gradient under steady state conditions.
Thermal conductivity of some common materials and products are indicated in the table below.
• 1 W/(m.K) = 1 W/(m.oC) = 0.85984 kcal/(hr.m.oC) = 0.5779 Btu/(ft.hr.oF)
Thermal Conductivity - k - W/(m.K)
Material/Substance
Acetone
Acetylene (gas)
Acrylic
Air, athmosphere (gas)
Alcohol
Aluminum
Aluminum Oxide
Ammonia (gas)
Antimony
Argon (gas)
Asbestos-cement board
Asbestos-cement sheets
Asbestos-cement
Asbestos, loosely packed
Asbestos mill board
Asphalt
Balsa wood
Bitumen
Benzene
Beryllium
Bitumen
Blast furnace gas (gas)
Brass
Breeze block
Brick dense
Brickwork, common
Brickwork, dense
Cadmium
Calcium silicate
Carbon
Carbon dioxide (gas)
Cement, portland
Cement, mortar
Chalk
Chlorine (gas)
Chrome Nickel Steel (18% Cr, 8 %
Ni)
Clay, dry to moist
Clay, saturated
Cobalt
Concrete, lightweight
Concrete, medium
Concrete, dense
Concrete, stone
25
0.16
0.018
0.2
0.024
0.17
250
30
0.022
18.5
0.016
0.744
0.166
2.07
0.15
0.14
0.75
0.048
0.17
0.16
218
0.17
0.02
109
0.10 - 0.20
1.31
0.6 -1.0
1.6
92
0.05
1.7
0.0146
0.29
1.73
0. 09
0.0081
Temperature - oC
125
225
255
250
Free Industry
Magazines
Energy Efficiency &
Technology
Microwaves & RF
Offshore Engineer
16.3
0.15 - 1.8
0.6 - 2.5
69
0.1 - 0.3
0.4 - 0.7
1.0 - 1.8
1.7
http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html
10/26/2011
Thermal Conductivity of some common Materials and Gases
Engineering
Standards
Constantan
Copper
Corian (ceramic filled)
Corkboard
Cork, regranulated
Cork
Cotton wool
Carbon Steel
Cotton Wool insulation
Diatomaceous earth (Sil-o-cel)
Diatomite
Earth, dry
Engine Oil
Ether
Ethylene (gas)
Epoxy
Ethylene glycol
Felt insulation
Fiberglass
Fiber insulating board
Fiber hardboard
22
401
1.06
0.043
0.044
0.07
0.029
54
0.029
0.06
0.12
1.5
0.15
0.14
0.017
0.35
0.25
0.04
0.04
0.048
0.2
Fireclay brick 500oC
Foam glass
Freon 12 (gas)
Freon (liquid)
Gasoline
Glass
Glass, Pearls, dry
Glass, Pearls, saturated
Glass, window
Glass, wool Insulation
Glycerol
Gold
Granite
Gravel
Gypsum or plaster board
Hairfelt
Hardboard high density
Hardwoods (oak, maple..)
Helium (gas)
Hydrochlor acid (gas)
Hydrogen (gas)
Hydrogen sulfide (gas)
0.045
0.073
0.07
0.15
1.05
0.18
0.76
0.96
0.04
0.28
310
1.7 - 4.0
0.7
0.17
0.05
0.15
0.16
0.142
0.013
0.168
0.013
Ice (0oC, 32oF)
Insulation materials
Iridium
Iron
Iron, wrought
Iron, cast
Kapok insulation
Kerosene
Krypton (gas)
Lead Pb
Leather, dry
Limestone
Magnesia insulation (85%)
Magnesite
Magnesium
Marble
Mercury
Methane (gas)
Methanol
Mica
Mineral wool insulation materials,
wool blankets ..
Molybdenum
Monel
Neon (gas)
Nickel
Nitrogen (gas)
Page 2 of 4
400
398
51
47
312
310
68
60
Engineering
Standards
1.4
2.18
0.035 - 0.16
147
80
59
55
0.034
0.15
0.0088
35
0.14
1.26 - 1.33
0.07
4.15
156
2.08 - 2.94
8
0.030
0.21
0.71
0.04
138
26
0.046
91
0.024
http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html
10/26/2011
Thermal Conductivity of some common Materials and Gases
Nylon 6
Oil, machine lubricating SAE 50
Olive oil
Oxygen (gas)
Paper
Paraffin Wax
Perlite, atmospheric pressure
Perlite, vacuum
Plaster, gypsum
Plaster, metal lath
Plaster, wood lath
Plastics, foamed (insulation
materials)
Platinum
Plywood
Polyethylene HD
Polypropylene
Polystyrene, expanded
Polystyrol
Polyurethane foam
Porcelain
Propane (gas)
PTFE
PVC
Pyrex glass
Quartz mineral
Rock, solid
Rock, porous volcanic (Tuff)
Rock Wool insulation
Rubber, natural
Sand, dry
Sand, moist
Sand, saturated
Sandstone
Sawdust
Silica aerogel
Silicone oil
Silver
Slag wool
Slate
Snow (temp < 0oC)
Sodium
Softwoods (fir, pine ..)
Soil, with organic matter
Soil, saturated
Steel, Carbon 1%
Stainless Steel
Straw slab insulation, compressed
Styrofoam
Sulfur dioxide (gas)
Tin Sn
Zinc Zn
Urethane foam
Vermiculite
Vinyl ester
Water
Water, vapor (steam)
Wood across the grain, white pine
Wood across the grain, balsa
Wood across the grain, yellow
pine, timber
Wood, oak
Wool, felt
Wood wool, slab
Xenon (gas)
Page 3 of 4
0.25
0.15
0.17
0.024
0.05
0.25
0.031
0.00137
0.48
0.47
0.28
0.03
70
0.13
0.42 - 0.51
0.1 - 0.22
0.03
0.043
0.03
1.5
0.015
0.25
0.19
1.005
3
2-7
0.5 - 2.5
0.045
0.13
0.15 - 0.25
0.25 - 2
2-4
1.7
0.08
0.02
0.1
429
0.042
2.01
71
72
17
19
0.05 - 0.25
84
0.12
0.15 - 2
0.6 - 4
43
16
0.09
0.033
0.0086
67
116
0.021
0.058
0.25
0.58
0.016
0.12
0.055
0.147
0.17
0.07
0.1 - 0.15
0.0051
• 1 W/(m.K) = 1 W/(m.oC) = 0.85984 kcal/(h.m.oC) = 0.5779 Btu/(ft.h.oF) = 0.048 Btu/(in.h.oF)
• What is conductive heat transfer?
Sponsored Links
http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html
10/26/2011
Thermal Conductivity of some common Materials and Gases
Page 4 of 4
Search the Engineering ToolBox
Search
Custom Search
Related Topics
• Insulation - Heat transfer and heat loss from buildings and technical applications - insulation methods and
coefficients to reduce energy consumption
• Material Properties - Material properties - density, heat capacity, viscosity and more - for gases, fluids and
solids
• Thermodynamics - The effects of work, heat and energy on a system
Related Documents
• Calcium Silicate Insulation - Thermal conductivity - temperature and k-values
• Conductive Heat Transfer - Heat transfer takes place as conduction if there is a temperature gradient in a
solid or fluid
• Cylinder or Pipe - Conductive Heat Loss - Conductive heat loss through cylinder or pipe walls
• Insulation Materials and Temperature Ranges - Temperature limits of some common insulation materials
• Mineral Wool Insulation - Thermal conductivity - Temperature and k-values
• Overall Heat Transfer Coefficient - Calculate overall heat transfer coefficient - walls or heat exchangers
• Resistivity from Conductivity - Thermal resistivity and conductivity
• Thermal Conductance Conversion Factors - Convert between thermal conductivity units
• Thermal Conductivities of Heat Exchanger Materials - Typical heat exchanger materials and thermal
conductivities
• Thermal Conductivity Coefficients Plastics - Conductivity for some common plastics
• Thermal Conductivity Common Liquids - Common fluids and their thermal conductivity
• Thermal Conductivity Online Converter - An online thermal conductivity calculator
• Thermal Conductivity of Metals - Thermal conductivity of some common metals
• Thermal Transmittance - U - Thermal transmittance - U - from thermal resistance
Engineering ToolBox - SketchUp Edition - Online 3D modeling!
Engineering ToolBox - SketchUp Edition - enabled for use with the amazing, fun and free Google SketchUp
Translate the ToolBox
Arabic - Chinese (Simplified) - Chinese (Traditional) - Dutch - French - German - Italian - Japanese - Korean Portuguese - Russian - Spanish - - Select Your own language . .
About the ToolBox
We appreciate any comments and tips on how to make The Engineering ToolBox a better information source.
Please contact us by email
• editor.engineeringtoolbox@gmail.com
if You find any faults, inaccuracies, or otherwise unacceptable information.
The content in The Engineering ToolBox is copyrighted but can be used with NO WARRANTY or LIABILITY.
Important information should always be double checked with alternative sources. All applicable national and local
regulations and practices concerning this aspects must be strictly followed and adhered to.
Advertise in the ToolBox
If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords.
http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html
10/26/2011