جدول ضریب انبساط حرارتی خطی مواد
Thermal expansion coefficients for some common materials are indicated in the table below:
Product |
Linear Temperature Expansion Coefficient - α - |
|
|
(10-6 m/m K) *) |
(10-6 in/in oF) *) |
ABS (Acrylonitrile butadiene styrene) thermoplastic |
73.8 |
41 |
ABS -glass fiber-reinforced |
30.4 |
17 |
Acetals |
106.5 |
59.2 |
Acetal - glass fiber-reinforced |
39.4 |
22 |
Acrylic, sheet, cast |
81 |
45 |
Acrylic, extruded |
234 |
130 |
Alumina |
5.4 |
3.0 |
Aluminum |
22.2 |
12.3 |
Amber |
50 - 60 |
|
Antimony |
10.4 |
5.8 |
Arsenic |
4.7 |
2.6 |
Bakelite, bleached |
22 |
|
Barium |
20.6 |
11.4 |
Barium ferrite |
10 |
5.6 |
Benzocyclobutene |
42 |
23.3 |
Beryllium |
11.5 |
6.4 |
Bismuth |
13 |
7.3 |
Brass |
18.7 |
10.4 |
Brick masonry |
5.5 |
3.1 |
Bronze |
18.0 |
10.0 |
Cadmium |
30 |
16.8 |
Calcium |
22.3 |
12.4 |
Cast Iron Gray |
10.8 |
6.0 |
Caoutchouc |
66 - 69 |
|
Celluloid |
100 |
|
Cellulose acetate (CA) |
130 |
72.2 |
Cellulose acetate butynate (CAB) |
96 - 171 |
80 - 95 |
Cellulose nitrate (CN) |
80 - 120 |
44 - 67 |
Cement |
10.0 |
6.0 |
Cerium |
5.2 |
2.9 |
Chlorinated polyether |
80 |
44 |
Chlorinated polyvinylchloride (CPVC) |
66.6 |
37 |
Chromium |
6.2 |
3.4 |
Clay tile structure |
5.9 |
3.3 |
Cobalt |
12 |
6.7 |
Concrete |
14.5 |
8.0 |
Concrete structure |
9.8 |
5.5 |
Constantan |
18.8 |
10.4 |
Copper |
16.6 |
9.3 |
Copper, Beryllium 25 |
17.8 |
9.9 |
Corundum, sintered |
6.5 |
3.6 |
Cupronickel 30% |
16.2 |
9 |
Diamond (Carbon) |
1.18 |
0.66 |
Duralumin |
23 |
12.8 |
Dysprosium |
9.9 |
5.5 |
Ebonite |
76.6 |
42.8 |
Epoxy, cast resins & compounds, unfilled |
45 - 65 |
25 - 36 |
Erbium |
12.2 |
6.8 |
Ethylene ethyl acrylate (EEA) |
205 |
113.9 |
Ethylene vinyl acetate (EVA) |
180 |
100 |
Europium |
35 |
19.4 |
Fluoroethylene propylene (FEP) |
135 |
75 |
Fluorspar, CaF2 |
19.5 |
|
Gadolinium |
9 |
5 |
Germanium |
6.1 |
3.4 |
German silver |
18.4 |
10.2 |
Glass, hard |
5.9 |
3.3 |
Glass, Pyrex |
4.0 |
2.2 |
Glass, plate |
9.0 |
5.0 |
Gold |
14.2 |
8.2 |
Gold - copper |
15.5 |
|
Gold - platinum |
15.2 |
|
Granite |
7.9 |
4.4 |
Graphite, pure (Carbon) |
2 - 6 |
1.1 - 3.4 |
Gunmetal |
18 |
10 |
Gutta percha |
198 |
|
Hafnium |
5.9 |
3.3 |
Hard alloy K20 |
6 |
3.3 |
Hastelloy C |
11.3 |
6.3 |
Holmium |
11.2 |
6.2 |
Ice, 0oC water |
51 |
28.3 |
Inconel |
12.6 |
7.0 |
Indium |
33 |
18.3 |
Invar |
1.5 |
0.8 |
Iridium |
6.4 |
3.6 |
Iron, pure |
12.0 |
6.7 |
Iron, cast |
10.4 |
5.9 |
Iron, forged |
11.3 |
6.3 |
Kapton |
20 |
11.1 |
Lanthanum |
12.1 |
6.7 |
Lead |
28.0 |
15.1 |
Limestone |
8 |
4.4 |
Lithium |
46 |
25.6 |
Lutetium |
9.9 |
5.5 |
Macor |
9.3 |
5.2 |
Magnalium |
23.8 |
|
Magnesium |
25 |
14 |
Manganese |
22 |
12.3 |
Manganin |
18.1 |
|
Marble |
5.5 - 14.1 |
3.1 - 7.9 |
Masonry |
4.7 - 9.0 |
2.6 - 5.0 |
Mercury |
61 |
33.9 |
Mica |
3 |
1.7 |
Molybdenum |
5 |
2.8 |
Monel metal |
13.5 |
7.5 |
Mortar |
7.3 - 13.5 |
4.1-7.5 |
Neodymium |
9.6 |
5.3 |
Nickel |
13.0 |
7.2 |
Niobium (Columbium) |
7 |
3.9 |
Nylon, general purpose |
72 |
40 |
Nylon, Type 11, molding and extruding compound |
100 |
55.6 |
Nylon, Type 12, molding and extruding compound |
80.5 |
44.7 |
Nylon, Type 6, cast |
85 |
47.2 |
Nylon, Type 6/6, molding compound |
80 |
44.4 |
Oak, perpendicular to the grain |
54 |
30 |
Osmium |
5 |
2.8 |
Palladium |
11.8 |
6.6 |
Paraffin |
106 - 480 |
|
Phenolic resin without fillers |
60 - 80 |
33 - 44.4 |
Phosphor bronze |
16.7 |
9.3 |
Plaster |
16.4 |
9.2 |
Plastics |
40 - 120 |
22 - 67 |
Platinum |
9.0 |
5.0 |
Plutonium |
54 |
30.2 |
Polyacrylonitrile |
70 |
38.5 |
Polyallomer |
91.5 |
50.8 |
Polyamide (PA) |
110 |
61.1 |
Polybutylene (PB) |
130 |
72 |
Polycarbonate (PC) |
70.2 |
39 |
Polycarbonate - glass fiber-reinforced |
21.5 |
12 |
Polyester |
123.5 |
69 |
Polyester - glass fiber-reinforced |
25 |
14 |
Polyethylene (PE) |
200 |
111 |
Polyethylene (PE) - High Molecular Weight |
108 |
60 |
Polyethylene terephthalate (PET) |
59.4 |
33 |
Polyphenylene - glass fiber-reinforced |
35.8 |
20 |
Polypropylene (PP), unfilled |
100 - 200 |
56 - 112 |
Polypropylene - glass fiber-reinforced |
32 |
18 |
Polystyrene (PS) |
70 |
38.9 |
Polysulfone (PSO) |
55.8 |
31 |
Polyurethane (PUR), rigid |
57.6 |
32 |
Polyvinyl chloride (PVC) |
50.4 |
28 |
Polyvinylidene fluoride (PVDF) |
127.8 |
71 |
Porcelain, Industrial |
6.5 |
3.6 |
Potassium |
83 |
46.1 |
Praseodymium |
6.7 |
3.7 |
Promethium |
11 |
6.1 |
Quartz |
0.77 - 1.4 |
0.43 - 0.79 |
Rhenium |
6.7 |
3.7 |
Rhodium |
8 |
4.5 |
Rock salt |
40.4 |
|
Rubber, hard |
77 |
42.8 |
Ruthenium |
9.1 |
5.1 |
Samarium |
12.7 |
7.1 |
Sandstone |
11.6 |
6.5 |
Sapphire |
5.3 |
2.9 |
Scandium |
10.2 |
5.7 |
Selenium |
3.8 |
2.1 |
Silicon |
3 |
1.7 |
Silicon Carbide |
2.77 |
1.5 |
Silver |
19.5 |
10.7 |
Sitall |
0.15 |
0.08 |
Slate |
10.4 |
5.8 |
Sodium |
70 |
39.1 |
Solder lead - tin, 50% - 50% |
24.0 |
13.4 |
Speculum metal |
19.3 |
|
Steatite |
8.5 |
4.7 |
Steel |
13.0 |
7.3 |
Steel Stainless Austenitic (304) |
17.3 |
9.6 |
Steel Stainless Austenitic (310) |
14.4 |
8.0 |
Steel Stainless Austenitic (316) |
16.0 |
8.9 |
Steel Stainless Ferritic (410) |
9.9 |
5.5 |
Strontium |
22.5 |
12.5 |
Tantalum |
6.5 |
3.6 |
Tellurium |
36.9 |
20.5 |
Terbium |
10.3 |
5.7 |
Terne |
11.6 |
6.5 |
Thallium |
29.9 |
16.6 |
Thorium |
12 |
6.7 |
Thulium |
13.3 |
7.4 |
Tin |
23.4 |
13.0 |
Titanium |
8.6 |
4.8 |
Topas |
5 - 8 |
|
Tungsten |
4.3 |
2.4 |
Uranium |
13.9 |
7.7 |
Vanadium |
8 |
4.5 |
Vinyl Ester |
16 - 22 |
8.7 - 12 |
Vulcanite |
63.6 |
|
Wax |
2 - 15 |
|
Wedgwood ware |
8.9 |
|
Wood, fir |
3.7 |
2.1 |
Wood, parallel to grain |
3 |
1.7 |
Wood, across (perpendicular) to grain |
30 |
17 |
Wood, pine |
5 |
2.8 |
Ytterbium |
26.3 |
14.6 |
Yttrium |
10.6 |
5.9 |
Zinc |
29.7 |
16.5 |
Zirconium |
5.7 |
3.2 |
*) m/m = meter per meter, in/in = inches per inches
Most values at 25oC (77oF).
- T(oC) = 5/9[T(oF) - 32]
- 1 in (inch) = 25.4 mm
- 1 ft (foot) = 0.3048 m
Pasted from <http://www.engineeringtoolbox.com/linear-expansion-coefficients-d_95.html>