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Steel Making

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

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

Annealing
There is no mystery or secret about the proper annealing of d...

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

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

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

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

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

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

The Modern Hardening Room
A hardening room of today means a very different place from ...

Care In Annealing
Not only will benefits in machining be found by careful anne...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

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

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

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

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

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...



Uses Of The Various Tempers Of Carbon Tool Steel






Category: HARDENING CARBON STEEL FOR TOOLS

DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pressing
and drop forgings. Mining drills to harden only. Easily weldable.

SMITHS' TOOL TEMPER.--No. 3-1/2: Large punches, minting and rivet
dies, nailmakers' tools, hammers, hot and cold sets, snaps and
boilermakers' tools, various smiths' tools, large shear blades,
double-handed chisels, caulking tools, heading dies, masons' tools
and tools for general welding purposes.

SHEAR BLADE TEMPER.--No. 4: Punches, large taps, screwing dies,
shear blades, table cutlery, circular and long saws, heading dies.
Weldable.

GENERAL PURPOSE TEMPER.--No. 4-1/2: Taps, small punches, screwing
dies, sawwebs, needles, etc., and for all general purposes. Weldable.

AXE TEMPER.--No. 5: Axes, chisels, small taps, miners' drills and
jumpers to harden and temper, plane irons. Weldable with care.

CUTLERY TEMPER.--No. 5-1/2: Large milling cutters, reamers, pocket
cutlery, wood tools, short saws, granite drills, paper and tobacco
knives. Weldable with very great care.

TOOL TEMPER.--No. 6: Turning, planing, slotting, and shaping tools,
twist drills, mill picks, scythes, circular cutters, engravers'
tools, surgical cutlery, circular saws for cutting metals, bevel
and other sections for turret lathes. Not weldable.

HARD TOOL TEMPER.--No. 6-1/2: Small twist drills, razors, small
and intricate engravers' tools, surgical instruments, knives. Not
weldable.

RAZOR TEMPER.--No. 7: Razors, barrel boring bits, special lathe
tools for turning chilled rolls. Not weldable.





Next: Steel For Chisels And Punches

Previous: Carbon Steels For Different Tools



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