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Steel Making

The Theory Of Tempering
Steel that has been hardened is generally harder and more br...

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

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

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

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

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

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

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

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

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

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

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

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

Nickel
Nickel may be considered as the toughest among the non-rare a...

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



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.





Next: Hardening

Previous: High-chromium Or Rust-proof Steel



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