Donaldgowerie House, until comparatively recent times, stood on the outskirts of Perth. It was a long, low, rambling old place, dating back to the beginning of the seventeenth century. At the time of the narrative it was in the possession of ... Read more of The Grey Piper And The Heavy Coach Of Donaldgowerie House Perth at Scary Stories.caInformational Site Network Informational
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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

The Electric Process
The fourth method of manufacturing steel is by the electric f...

Care In Annealing
Not only will benefits in machining be found by careful anne...

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

Quenching Tool Steel
To secure proper hardness, the cooling of quenching of steel ...

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

Refining The Grain
This is remedied by reheating the piece to a temperature slig...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

Crucible Steel
Crucible steel is still made by melting material in a clay or...

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

Sulphur
SULPHUR is another element (symbol S) which is always found i...



Effect Of A Small Amount Of Copper In Medium-carbon Steel






Category: ALLOYS AND THEIR EFFECT UPON STEEL

This shows the result of tests by C. R. Hayward and A. B. Johnston
on two types of steel: one containing 0.30 per cent carbon, 0.012
per cent phosphorus, and 0.860 per cent copper, and the other 0.365
per cent carbon, 0.053 per cent phosphorus, and 0.030 per cent
copper. The accompanying chart in Fig. 13 shows that high-copper
steel has decided superiority in tensile strength, yield point and
ultimate strength, while the ductility is practically the same.
Hardness tests by both methods show high-copper steel to be harder
than low-copper, and the Charpy shock tests show high-copper steel
also superior to low-copper. The tests confirm those made by Stead,
showing that the behavior of copper steel resembles that of nickel
steel. The high-copper steels show finer grain than the low-copper.
The quenched and drawn specimens of high-copper steel were found
to be slightly more martensitic.





Next: High-chromium Or Rust-proof Steel

Previous: Non-shrinking Oil-hardening Steels



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