Tensile Strength and Ductility of Steel Plates With and Against the Grain. From Mr. Kirkaldy's Experiments-.1 L. signifies lengthways of the grain; C. across the grain.

Names of Makers or Works.

Thickness.

Description.

Tearing weight per square inch of original area.

Ultimate elongation or tensile set after fracture.

Contraction of area at fracture.

Turton and Sons, cast steel..

Inch.

Samples.

L C

Tons. 42.09 42.99

Per cent. 5.71 9.64

Percent.

5.6

13.4

Moss and Ganihles, cast steel .

3/16 to 4/16

L

C

33.74 30.84

19.82 19.64

28.2 38.6

Shortridge and Co., do...

3/16

L C

42.98 43.37

8.61 8.93

15.6 148

Shortridge and Co., puddled steel .....

1/4

L C

32.32

32.84

5.93 3.21

11.5

5.7

Mersey Company, puddled steel (ship plates),.

2/16 to 3/16

L C

45.29 37.93

279 1.25

6.4 4.4

Mersey Company, puddled steel, "Hard" ...

1/4

Samples.

L C

45.80 38.11

4.86 330

4.5

4.7

Mersey Company, mild steel..

1/4

L C

34.39 30.22

6.16

5.72

12.5 8.5

Mersey Company, mild steel (ship plates)..

9/32

L

31.93

3.57

7.5