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Steel Making

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

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

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

Quality And Structure
The quality of high-speed steel is dependent to a very great ...

Heat Treatment Of Milling Cutters Drills Reamers Etc
THE FIRE.--Gas and electric furnaces designed for high heats ...

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

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

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

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

Conclusions
Martien was probably never a serious contender for the honor ...

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

Drop Forging Dies
The kind of steel used in the die of course influences the he...

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

The Forging Of Steel
So much depends upon the forging of steel that this operation...

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...

Uses Of The Various Tempers Of Carbon Tool Steel
DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pres...

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

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...



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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