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IX. THERMAL EXPANSIVITY OF SOLIDS

IX. THERMAL EXPANSIVITY OF SOLIDS

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<strong>THERMAL</strong> EXPANSION <strong>OF</strong> STEEL, S .A.E. 1020<br />

Sources of Data: Altman, Rubin and Johnston 1952<br />

Other References: Beenakker and Swenson 1955<br />

Dorsey 1910<br />

Gregg 1954<br />

Discussion:<br />

Temp.<br />

0<br />

K<br />

0<br />

10<br />

20<br />

30<br />

40<br />

50<br />

60<br />

70<br />

80<br />

90<br />

100<br />

1.20<br />

Taken<br />

L293 - LT<br />

L<br />

293<br />

202<br />

202<br />

201<br />

201<br />

200<br />

198 I'<br />

195 'I<br />

192 I'<br />

187<br />

182 I'<br />

170 'I<br />

from NBS 29<br />

0.<br />

0.18 Cy 0.33 Mn, 0.01 Si, bal. Fe.<br />

According to Beenakker and Swenson, cast<br />

iron had the same thermal expansion as 1020<br />

steel within their experimental uncertainty<br />

of +3~10'~ in AL/L.<br />

Table of Selected Values<br />

-5<br />

0.001 x 10<br />

.03<br />

.08<br />

.14<br />

.23<br />

.31<br />

.40<br />

.48<br />

.55<br />

.68<br />

I1<br />

II<br />

II<br />

II<br />

II<br />

II<br />

II<br />

II<br />

$1<br />

Temp.<br />

0<br />

K<br />

140<br />

160<br />

180<br />

200<br />

2 20<br />

240<br />

2 60<br />

273<br />

28 0<br />

293<br />

300<br />

LX-x-1<br />

155<br />

138 'I<br />

120<br />

101 II<br />

80.7 It<br />

59.6 'I<br />

37.7 It<br />

22.9<br />

15.1 'I<br />

0.0<br />

-8.3 It<br />

--<br />

1 dL<br />

L dT<br />

per OK<br />

-5<br />

0.78 x 10<br />

.87 I'<br />

.94<br />

.99 I'<br />

1.04 I'<br />

1.08<br />

1.11<br />

I'<br />

1.14 I'<br />

1.15 'I<br />

1.17 I'<br />

1.19

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