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Quality And Structure
The quality of high-speed steel is dependent to a very great ...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

Robert Mushet
Robert (Forester) Mushet (1811-1891), born in the Forest of D...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

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

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

The Thermo-couple
With the application of the thermo-couple, the measurement of...

Bessemer Process
The bessemer process consists of charging molten pig iron int...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

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

Furnace Data
In order to give definite information concerning furnaces, fu...

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

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

Silicon
SILICON is a very widespread element (symbol Si), being an es...

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

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...



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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