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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Connecting Rods
The material used for all connecting rods on the Liberty engi...

Heating
Although it is possible to work steels cold, to an extent de...

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

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

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

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...

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

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

Hardness Testing
The word hardness is used to express various properties of me...

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

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

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...



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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