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

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

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

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

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

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...

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

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

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

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

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

Critical Points
One of the most important means of investigating the properti...

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

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

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

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

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



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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