See Alloy Steel Tolerances

Alloy Steel Rectangle Bar 4140, 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.
Thickness
0.75
Width
1.25
Max Length
144
Alloy
4140
Production Method
Cold Drawn
Metal Type
Alloy Steel
Shape
Bar-Rectangle
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
3.17 pounds
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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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