4150
stocked in rounds

GENERAL CHARACTERISTICS
4150 is an oil-hardening steel of relatively high hardenability.  This grade is especially suitable for forging because of hardness and high strength.  4150 is a combination of highly desirable properties including good strength and wear resistance, excellent toughness coupled with good ductility, and the ability to resist stress at elevated temperatures.

Chemical Analysis
Carbon .38/.43
Manganese .75/1.00
Phosphorus .035 max
Sulfur .040 max.
Silicon .15/.35
Chromium .080/1.10
Vanadium ~
Tungsten ~
Molybdenum .15/.25
Cobalt ~


USES
Drill collars, kelly bars, bolts, subs, couplings, reamer bodies, rotary table shafting, oil well tool joints, axle shafts, valves, sprockets, trailer axles, winch shafts, piston rods, rams, hydraulic machinery shafts, chain links, zinc die-casting dies.

FORGING
Heat to 2100° F – 2200° F.

ANNEALING
Heat to 1450° F - 1550° F.  Cool slowly in furnace.  Average Brinell Hardness 187.

HARDENING
Hardening range is between 1525° F and 1625° F.  Quench in oil.  A wide range of mechanical properties can be obtained by tempering between 400° F and 1300° F.

Please note: Technical data is compiled from various sources and is for reference only and not intended for design purposes. Tennessee Die Supply Co., Inc. makes no claim as to the accuracy to the data contained in this web site. Tennessee Die Supply Co., Inc.'s liability will only be the replacement cost of the steel.