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>
