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Steel Making

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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

Chromium
Chromium when alloyed with steel, has the characteristic func...

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

Manganese
Manganese adds considerably to the tensile strength of steel,...

Quenching
It is considered good practice to quench alloy steels from th...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

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

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

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

Preparing Parts For Local Case-hardening
At the works of the Dayton Engineering Laboratories Company, ...

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

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

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...

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

Corrosion
This steel like any other steel when distorted by cold worki...

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...



Tool Or Crucible Steel






Category: ANNEALING

Crucible steel can be annealed either in muffled furnace or by
being packed. Packing is by far the most satisfactory method as it
prevents scaling, local hard spots, uneven annealing, or violent
changes in shape. It should be brought up slowly to just above
its calescent or hardening temperature. The operator must know
before setting his heats the temperature at which the different
carbon content steels are hardened. The higher the carbon contents
the lower is the hardening heat, but this should in no case be
less than 1,450 deg.F.





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Previous: Annealing Of High-speed Steel



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