1.. 90.00% 8.5-7.0%
No. 2.. 80.00% 2.0-3.0% 15% Not over 0.40%
No. 3.. 65.00% 35.0%
Cast Iron--
Gray Iron Malleable
Total carbon........3.0 to 3.5%
Combined carbon.....0.4 to 0.7%
Manganese...........0.4 to 0.7% 0.3 to 0.7%
Phosphorus..........0.6 to 1.0% Not over 0.2%
Sulphur...........Not over 0.1% Not over 0.6%
Silicon............1.75 to 2.25% Not over 1.0%
Carbon Steel (10 Point)--
Carbon........................ .05% to .15%
Manganese..................... .30% to .60%
Phosphorus (maximum).......... .045%
Sulphur (maximum)............. .05%
(20 Point)--
Carbon........................ .15% to .25%
Manganese..................... .30% to .60%
Phosphorus (maximum).......... .045%
Sulphur (maximum)............. .05%
(35 Point)--
Manganese..................... .50% to .80%
Carbon........................ .30% to .40%
Phosphorus (maximum).......... .05%
Sulphur (maximum)............. .05%
(95 Point)--
Carbon........................ .90% to 1.05%
Manganese..................... .25% to .50%
Phosphorus (maximum).......... .04%
Sulphur (maximum)............. .05%
HEATING POWER OF FUEL GASES
(In B.T.U. per Cubic Foot.)
Acetylene....... 1498.99 Ethylene.
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