4142 Prehard Alloy ST Precision Ground Flat Stock

A chromium-molybdenum, medium carbon alloy steel, 4140 is used in a wide variety of applications requiring high strength and toughness. The chromium imparts good hardness penetration while molybdenum provides hardness uniformity and strength. In the heat treated or prehard conditions it is in the 24-32 Rockwell C range and stress relieved to minimize warping during machining. Localized hardness may also be imparted by flame or induction hardening. Primarily used in press brake dies, 4140 is also a good choice for applications requiring greater toughness than mild steel. Other typical applications include: bolts, molds, stripper plates, slides, ejector plates, jigs, fixtures, punch plates, drill collars, couplings, axle shafts, valves, machinery shafts, reamer bodies, machine stops.

Typical Analysis:

Carbon
.38/.43
Sulfur
.040 max
Phosphorus
.035 max
Molybdenum
.15/.25
Chromium
.80/1.00
Silicon
.15/.35
Manganese
.75/1.00




Tolerances:

 
Size Tolerance (inches)
Over
Under
Thickness
0.001
0.001
Width
0.005
0

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Stock Sizes:
Available in 72" Lengths

1/8" x 1/2" 4142 Prehard Alloy PGFS
1/8" x 3/4" 4142 Prehard Alloy PGFS
1/8" x 1" 4142 Prehard Alloy PGFS
1/8" x 1-1/4" 4142 Prehard Alloy PGFS
1/8" x 1-1/2" 4142 Prehard Alloy PGFS
1/8" x 2" 4142 Prehard Alloy PGFS
1/8" x 2-1/2" 4142 Prehard Alloy PGFS
1/8" x 3" 4142 Prehard Alloy PGFS
1/8" x 4" 4142 Prehard Alloy PGFS
1/8" x 5" 4142 Prehard Alloy PGFS
1/8" x 6" 4142 Prehard Alloy PGFS
3/16" x 1/2" 4142 Prehard Alloy PGFS
3/16" x 3/4" 4142 Prehard Alloy PGFS
3/16" x 1" 4142 Prehard Alloy PGFS
3/16" x 1-1/4" 4142 Prehard Alloy PGFS
3/16" x 1-1/2" 4142 Prehard Alloy PGFS
3/16" x 2" 4142 Prehard Alloy PGFS
3/16" x 2-1/2" 4142 Prehard Alloy PGFS
3/16" x 3" 4142 Prehard Alloy PGFS
3/16" x 4" 4142 Prehard Alloy PGFS
3/16" x 5" 4142 Prehard Alloy PGFS
3/16" x 6" 4142 Prehard Alloy PGFS
1/4" x 1/2" 4142 Prehard Alloy PGFS
1/4" x 3/4" 4142 Prehard Alloy PGFS
1/4" x 1" 4142 Prehard Alloy PGFS
1/4" x 1-1/4" 4142 Prehard Alloy PGFS
1/4" x 1-1/2" 4142 Prehard Alloy PGFS
1/4" x 2" 4142 Prehard Alloy PGFS
1/4" x 2-1/2" 4142 Prehard Alloy PGFS
1/4" x 3" 4142 Prehard Alloy PGFS
1/4" x 4" 4142 Prehard Alloy PGFS
1/4" x 5" 4142 Prehard Alloy PGFS
1/4" x 6" 4142 Prehard Alloy PGFS
5/16" x 5/16" 4142 Prehard Alloy PGFS
5/16" x 1/2" 4142 Prehard Alloy PGFS
5/16" x 3/4" 4142 Prehard Alloy PGFS
5/16" x 1" 4142 Prehard Alloy PGFS
5/16" x 1-1/4" 4142 Prehard Alloy PGFS
5/16" x 1-1/2" 4142 Prehard Alloy PGFS
5/16" x 2" 4142 Prehard Alloy PGFS
5/16" x 2-1/2" 4142 Prehard Alloy PGFS
5/16" x 3" 4142 Prehard Alloy PGFS
5/16" x 4" 4142 Prehard Alloy PGFS
5/16" x 5" 4142 Prehard Alloy PGFS
5/16" x 6" 4142 Prehard Alloy PGFS
3/8" x 3/8" 4142 Prehard Alloy PGFS
3/8" x 1/2" 4142 Prehard Alloy PGFS
3/8" x 3/4" 4142 Prehard Alloy PGFS
3/8" x 1" 4142 Prehard Alloy PGFS
3/8" x 1-1/4" 4142 Prehard Alloy PGFS
3/8" x 1-1/2" 4142 Prehard Alloy PGFS
3/8" x 2" 4142 Prehard Alloy PGFS
3/8" x 2-1/2" 4142 Prehard Alloy PGFS
3/8" x 3" 4142 Prehard Alloy PGFS
3/8" x 4" 4142 Prehard Alloy PGFS
3/8" x 5" 4142 Prehard Alloy PGFS
3/8" x 6" 4142 Prehard Alloy PGFS
1/2" x 1/2" 4142 Prehard Alloy PGFS
1/2" x 3/4" 4142 Prehard Alloy PGFS
1/2" x 1" 4142 Prehard Alloy PGFS
1/2" x 1-1/4" 4142 Prehard Alloy PGFS
1/2" x 1-1/2" 4142 Prehard Alloy PGFS
1/2" x 2" 4142 Prehard Alloy PGFS
1/2" x 2-1/2" 4142 Prehard Alloy PGFS
1/2" x 3" 4142 Prehard Alloy PGFS
1/2" x 4" 4142 Prehard Alloy PGFS
1/2" x 5" 4142 Prehard Alloy PGFS
1/2" x 6" 4142 Prehard Alloy PGFS
5/8" x 5/8" 4142 Prehard Alloy PGFS
5/8" x 3/4" 4142 Prehard Alloy PGFS
5/8" x 1" 4142 Prehard Alloy PGFS
5/8" x 1-1/2" 4142 Prehard Alloy PGFS
5/8" x 2" 4142 Prehard Alloy PGFS
5/8" x 3" 4142 Prehard Alloy PGFS
5/8" x 4" 4142 Prehard Alloy PGFS
5/8" x 6" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 3/4" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 1" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 1-1/2" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 2" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 3" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 4" 4142 Prehard Alloy Precision Ground Flat Stock
3/4" x 6" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 1" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 1-1/4" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 1-1/2" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 2" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 2-1/2" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 3" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 4" 4142 Prehard Alloy Precision Ground Flat Stock
1" x 6" 4142 Prehard Alloy Precision Ground Flat Stock