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Steel Making

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

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

Pickling The Forgings
The forgings were then pickled in a hot solution of either ni...

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

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

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

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

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

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

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

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

Crankshaft
The crankshaft was the most highly stressed part of the entir...

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

Double Annealing
Water annealing consists in heating the piece, allowing it to...



Phosphorus






Category: COMPOSITION AND PROPERTIES OF STEEL

PHOSPHORUS is an element (symbol P) which enters the metal from
the ore. It remains in the steel when made by the so-called acid
process, but it can be easily eliminated down to 0.06 per cent
in the basic process. In fact the discovery of the basic process
was necessary before the huge iron deposits of Belgium and the
Franco-German border could be used. These ores contain several
per cent phosphorus, and made a very brittle steel (cold short)
until basic furnaces were used. Basic furnaces allow the formation
of a slag high in lime, which takes practically all the phosphorus
out of the metal. Not only is the resulting metal usable, but the
slag makes a very excellent fertilizer, and is in good demand.





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Previous: Sulphur



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