429
WROUGHT IRON.
No. 7417.
Best Puddled Iron.
Diameter, 1".129.
Sectional area, 1 square inch.
Gauged length, 10".
Remarks.
In gaugéd length.
Elonga-
tion.
Applied loads per square inch.
Inch.
Inches.
Pounds.
Elastic limit.
1,000
5,000
10,000
20,000
30.000
31.000
32.000
34.000
36.000
38.000
40.000
42.000
45.000 Rested
0.
►Micrometer reset at zero on the original gauged length.
0.
.0008
.0024
.0073
.0115
.0149
.0170
.0175
.0180
.0183
.0186
.0190
.0193
.0201
.0277
1,000 5,000 10,000 20,000
30.000
40.000
45.000
46.000
47.000
48.000
48.500
49.000
49.500
ob, 000
50.500
Tensile strength. = 10.9 per cent.
1.09
51,000
0
Elongation of inch sections: ".24*, ".13, ".09, ".09, ".10, ".08, ".09, ".09, ".09, ".09.
Diameter at fracture, ".92; area, .665 square inch.
Contraction of area, 33.5 per cent.
Appearance, librous, seamy, trace of granulation. Fractured at the neck.