Manufacturers and Description of Steel

Breaking tensile stress per square inch of section.

Corresponding ultimate elongation.

Contraction or set due to compression under 100.7 tons per square inch.

Tons.

Per cent.

Per cent.

Messrs. J. Brown and Company.

Best cast steel from Russian and Swedish iron for turning tools..

30.53

.56

25.3

Do. milder..

40.85

1.50

26.3

English tilted steel made from English and foreign pigs ....

26.57

7.6

55.3

Messrs. C. Cammell and Company.

Specimen of cast steel, termed " Diamond Steel "..

49.13

1.77

23.3

Specimen of cast steel termed "Tool Steel"......

48.69

2.06

26.3

Specimen of cast steel termed "Chisel Steel " .....

53.75

2.81

31.3

Specimen of cast steel termed "Double Shear Steel" ....

43.15

2.50

30.3

Messrs. Naylor and Vickers.

Cast steel called "Axle Steel" ...

39.58

6.25

42.3

Do. do. "Tyre Steel " ...

40.85

4.75

38.8

Do. do. "Vickers' Cast Steel, special" .

59.87

1.00

15.3

Do. do. "Naylor and Vickers' Cast Steel"..

52.70

2.87

18.3

Messrs. S. Osborne and Company.

Specimen of best tool cast steel

44.17

1.56

20.3

Specimen of best double shear steel .

39.25

2.43

32.3

Extra best tool cast steel ...

38.26

0.37

19.3

Cast steel for boiler plates ...

49.85

10.62

33.3

H. Bessemer and Company.

Specimen of hard Bessemer steel..

46.02

1.87

22.3

Do. milder do...

39.36

10.93

44.3

Do. soft do...

35.09

9.81

47.3

Messrs. T.Turton and Sons.

Specimen of double shear steel ...

32.70

0.87

29.3

1 Iron Manufacture, 1869. British Association Report, 1867.