s 
,Mi{. -I, i;i':(4]NALi) Asinvoirni: 
Table 111. —llesidual Magnetic Intensity, Temperature Coefficient, and Permanent 
Loss at Successive Stages in the DraAving of a Steel Rod to Fine Wire. 
No. 
Condition. 
Diameter. 
Dimemsion ratio 
= 50. 
Dimen.sion ratio = 
= 100. 
Residual 
intensity 
initial Iju 
Temperattu’e 
coefficient, 
a. 
Permanent 
loss, 
/i. 
Residual 
intensity 
initially. 
jTemperature 
' coefficient, 
a. 
Permanent 
loss, 
(i- 
centims. 
X 10--* 
X 10 -* 
1 
Hot rolled . 
0-545 
315 
- 7-11 
-0-110 
1 
— 
2 
Annealed . 
0-539 
339 
- 12-62 
- 0 - 300 
— 
— 
— 
3 
Hard drawn 
0-399 
393 
- 6-93 
-0-084 
■ " 
— 
— 
4 
Tempered . 
0-381 
352 
- 11 - 66 
-0-321 
— ■ 
' — 
— 
0 
Cold drawn 
0-333 
396 
— 8-70 
- 0-292 
469 
- 2 - 35 
-0-076 
6 
0-253 
424 
- 3-78 
-0-284 
551 
+ 0-85 
-0-180 
7 
0-185 
497 
- 0-61 
-0-248 
701 
+ 3-43 
-0-105 
8 
0-137 
519 
- 0-19 
-0-207 
789 
+ 3-82 
-0-032 
9 
0-121 
543 
+ 0-75 
-0-192 
840 
+ 2-28 
-0-066 
10 
0-109 
557 
+ 1-33 
-0-203 
8.57 
+ 1-88 
-0-041 
11 
0-099 
613 
+ 1-25 
-0-155 
881 
+ 1-99 
-0-016 
12 
0-089 
574 
+ 0-00 
-0-074 
930 
+ 2-24 
-0-028 
Diagrani III. 
Piano Steel AVii-e. 
The relation of residual niagnetie intensity and its temperature coefficient to drawing. 
■aao 
