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Steel Making

Impact Tests
Impact tests are of considerable importance as an indication ...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

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

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

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

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

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

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

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

High Speed Steel
For centuries the secret art of making tool steel was handed ...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

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

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

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

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

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...

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

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...



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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Previous: High-chromium Or Rust-proof Steel



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