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Steel Making

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

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

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

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

Heating
Although it is possible to work steels cold, to an extent de...

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

Restoring Overheated Steel
The effect of heat treatment on overheated steel is shown gra...

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

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

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

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

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

Molybdenum
Molybdenum steels have been made commercially for twenty-five...

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

Manganese
Manganese adds considerably to the tensile strength of steel,...

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

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



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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