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Steel Making

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

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

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

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

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

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

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

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

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

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

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

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

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

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

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

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

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

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



Annealing In Bone






Category: ANNEALING

Steel and cast iron may both be annealed in granulated bone. Pack the
work the same as for case-hardening except that it is not necessary
to keep the pieces away from each other. Pack with bone that has
been used until it is nearly white. Heat as hot as necessary for
the steel and let the furnace cool down. If the boxes are removed
from furnace while still warm, cover boxes and all in warm ashes
or sand, air slaked lime or old, burned bone to retain heat as
long as possible. Do not remove work from boxes until cold.





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Previous: High-carbon Machinery Steel



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