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Steel Making

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

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

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

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

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

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

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

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

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

The Electric Process
The fourth method of manufacturing steel is by the electric f...

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...



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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