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Steel Making

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

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

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

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

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

The Forging Of Steel
So much depends upon the forging of steel that this operation...

Impact Tests
Impact tests are of considerable importance as an indication ...

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

Drop Forging Dies
The kind of steel used in the die of course influences the he...

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

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

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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

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

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

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

Hardening
The forgings can be hardened by cooling in still air or quen...



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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