$1,842.59
ea.
$1,842.59
for
1
8" Alloy Steel Round Bar 4140-Annealed Hot RolledPart #: 28412
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Alloy Steel Round Bar 4140 Annealed Hot Roll, also referred to as Chromoly Steel, is known for strength, resistance to fracturing, abrasion, and impact in high stress applications. 4140 is popular for a wide range of applications and is ductile and easily machined in the annealed state. It is commonly used for gears, shafts, spindles, fixtures, bolts, valves, sprockets, pistons, and collars in various high-stress and heavy-duty applications.
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Product Information
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Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
Diameter
8
Max Length
144
Alloy
4140
Temper
Annealed
Production Method
Hot Rolled
Metal Type
Alloy Steel
Shape
Bar-Round
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
170.01 pounds
Mechanical Properties
Density g/cm^3
8
Yield Tensile Strength KSI
60
Ultimate Tensile Strength KSI
95
Brinell Hardness 500 kg load
197
Rockwell Hardness B Scale
92
Elongation % in 2 in.
26
Shear Strength KSI
69
Machinability %
66
Electrical Conductivity % IACS
7
Melting Point °F
2580 - 2650
Chemistry Information : 4140 Alloy Steel
Element
Percentage
Element
Percentage
Element
Percentage
C
0.38
-
0.43
Cr
0.8
-
1.1
Fe
96.785
-
97.84
Mn
0.7
-
1
Mo
0.15
-
0.25
P
0.035
max
S
0.04
max
Si
0.15
-
0.3
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