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Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

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

Annealing
ANNEALING can be done by heating to temperatures ranging from...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

Chromium
Chromium when alloyed with steel, has the characteristic func...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

A Chromium-cobalt Steel
The Latrobe Steel Company make a high-speed steel without tun...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

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

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

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

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

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

Quenching The Work
In some operations case-hardened work is quenched from the bo...



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.





Next: Silicon

Previous: Sulphur



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