It must be remembered that two negatives in the English language destroy each other and are equivalent to an affirmative. Thus "I don't know nothing about it" is intended to convey, that I am ignorant of the matter under consideration, but it d... Read more of DOUBLE NEGATIVE at Speaking Writing.comInformational Site Network Informational
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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

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

Rate Of Cooling
At the option of the manufacturer, the above treatment of gea...

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

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

Hardening
Steel is hardened by quenching from above the upper critical....

Nickel-chromium
A combination of the characteristics of nickel and the charac...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

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

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

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

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

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

The Influence Of Size
The size of the piece influences the physical properties obta...

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

Sulphur
SULPHUR is another element (symbol S) which is always found i...

Critical Points
One of the most important means of investigating the properti...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

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

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

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



Annealing






Category: ALLOYS AND THEIR EFFECT UPON STEEL

ANNEALING can be done by heating to temperatures ranging from 1,290
to 1,380 deg.F. and cooling in air or quenching in water or oil. After
this treatment the forgings will have a hardness of about 200 Brinell
and a tensile strength of 100,000 to 112,000 lb. per square inch.
If softer forgings are desired they can be heated to a temperature
of from 1,560 to 1,650 deg.F. and cooled very slowly. Although softer
the forgings will not machine as smoothly as when annealed at the
lower temperature.





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