Product Details, Specifications, and Technical Information

See Alloy Steel Tolerances

Alloy Steel Round Bar 4140 Annealed Cold Finish, 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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Dimension Name Specification
Diameter 19
Max Length 72
Alloy 4140
Temper Annealed
Production Method TGP
Eniteo Vendor ID 1961
MTR Availability Yes
Material Alloy Steel
Shape Bar-Round
Custom Cut Warehouse 0
Material Specifications

This material meets the following specs: ASTM -A322, ASTM -A295, ASTM -A434, ASTM -A29, ASTM -A193

Weight/Lineal Foot
8.86 pounds
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.
Mechanical Properties
Property Value
Density g/cm^3 8
Brinell Hardness 500 kg load 197
Rockwell Hardness B Scale 92
Ultimate Tensile Strength KSI 95
Yield Tensile Strength KSI 60
Elongation % in 2 in. 26
Melting Point °F 2580 - 2650
Shear Strength KSI 69
Electrical Conductivity % IACS 7
Machinability % 66
Chemistry Information: 4140 Alloy Steel
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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