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Steel Making

Corrosion
This steel like any other steel when distorted by cold worki...

Heat Treatment Of Milling Cutters Drills Reamers Etc
THE FIRE.--Gas and electric furnaces designed for high heats ...

Uses Of The Various Tempers Of Carbon Tool Steel
DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pres...

Connecting Rods
The material used for all connecting rods on the Liberty engi...

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...

Hardening
The forgings can be hardened by cooling in still air or quen...

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

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

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

Heavy Forging Practice
In heavy forging practice where the metal is being worked at...



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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