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Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

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

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

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

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

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

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

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

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

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

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

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

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

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

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

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

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

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...



Alloying Elements






Category: COMPOSITION AND PROPERTIES OF STEEL

Commercial steels of even the simplest types
are therefore primarily alloys of iron and carbon. Impurities and
their remedies are always present: sulphur, phosphorus, silicon
and manganese--to say nothing of oxygen, nitrogen and carbon oxide
gases, about which we know very little. It has been found that other
metals, if added to well-made steel, produce definite improvements
in certain directions, and these alloy steels have found much
use in the last ten years. Alloy steels, in addition to the
above-mentioned elements, may commonly contain one or more of the
following, in varying amounts: Nickel (Ni), Chromium (Cr), Vanadium
(Va), Tungsten (W), Molybdenum (Mo). These steels will be discussed
at more length in Chapters III and IV.





Next: Properties Of Steel

Previous: Manganese



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