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Steel Making

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

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

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

Nickel
Nickel may be considered as the toughest among the non-rare a...

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

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

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

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

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

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

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

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

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

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

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



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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