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

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

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

Carburizing Low-carbon Sleeves
Low-carbon sleeves are carburized and pushed on malleable-ir...

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Restoring Overheated Steel
The effect of heat treatment on overheated steel is shown gra...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

Uses Of The Various Tempers Of Carbon Tool Steel
DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pres...

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

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

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

Manganese
Manganese adds considerably to the tensile strength of steel,...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

Crucible Steel
Crucible steel is still made by melting material in a clay or...



Properties Of Alloy Steels






Category: ALLOYS AND THEIR EFFECT UPON STEEL

The following table shows the percentages of carbon, manganese,
nickel, chromium and vanadium in typical steel alloys for engineering
purposes. It also gives the elastic limit, tensile strength, elongation
and reduction of area of the various alloys, all being given the same
heat treatment with a drawing temperature of 1,100 deg.F. (600 deg.C.). The
specimens were one inch rounds machined after heat treatment.

Tungsten is not shown in the table because it is seldom used in
engineering construction steels and then usually in combination
with chromium. Tungsten is used principally for the magnets of
magnetos, to some extent in the manufacture of hacksaws, and for
special tool steels.

TABLE I.--PROPERTIES OF ALLOY STEELS
------------------------------------------------------------------------------
Manganese,/ Chromium,/ ElasticTensile ElongationReduction
Carbon, per /Nickel, per /Vanadium,limit, Strength,in 2 in., of area,
per cent per cent per cent lb. perlb. per per cent per cent
cent cent sq. in.sq. in.
----------------------------------------------------------------------
0.27 0.55 49,000 80,000 30 65
0.27 0.47 0.26 66,000 98,000 25 52
0.36 0.42 58,000 90,000 27 60
0.34 0.87 0.13 82,500 103,000 22 57
0.45 0.50 65,000 96,000 22 52
0.43 0.60 0.32 96,000 122,000 21 52
0.47 0.90 0.15 102,000 127,500 23 58
0.30 0.60 3.40 75,000 105,000 25 67
0.33 0.63 3.60 0.25 118,000 142,000 17 57
0.30 0.49 3.60 1.70 119,000 149,500 21 60
0.25 0.47 3.47 1.60 0.15 139,000 170,000 18 53
0.25 0.50 2.00 1.00 102,000 124,000 25 70
0.38 0.30 2.08 1.16 120,000 134,000 20 57
0.42 0.22 2.14 1.27 0.26 145,000 161,500 16 53
0.36 0.61 1.46 0.64 117,600 132,500 16 58
0.36 0.50 1.30 0.75 0.16 140,000 157,500 17 54
0.30 0.50 0.80 90,000 105,000 20 50
0.23 0.58 0.82 0.17 106,000 124,000 21 66
0.26 0.48 0.92 0.20 112,000 137,000 20 61
0.35 0.64 1.03 0.22 132,500 149,500 16 54
0.50 0.92 1.02 0.20 170,000 186,000 15 45
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