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Alloy Steel Round Bar 8620 Cold Finish offers good strength, high case toughness, and good core strength and toughness. 8620 is the mostly widely used carburized steel, and the addition of nickel gives it good fatigue resistance and torsional strength. It is typically used in gears, cranks, shafting, axles, bushings, heavy duty pins, bolting, springs, hand tools, gears, and many other machinery parts.

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Dimension Name


Alloy 8620
Production Method Cold Finish
Diameter 1.1875
Max Length 144
MTR Availability Yes
Full Length true
Material Alloy Steel
Shape Bar-Round
Custom Cut Warehouse 1
Material Specifications

This material meets the following specs: ASTM -A108

Weight/Lineal Foot

3.77 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
Brinell hardness  183
Rockwell Hardness B Scale 89
Elongation Typical % 13
Melting Point °F 2660 min
Modulus of Elasticity KSI x 10^3 30
Density g/cm^3 8
Specific Heat BTU/lb-°F (32-212F) 0
Thermal conductivity BTU-in/hr-ft^2-°F 22
Reduction of Area  60
Ultimate shear strength KSI 59
Ultimate KSI 92
Yield KSI 52
Impact values - Izod ft-lb 72

Chemistry Information: 8620 Alloy Steel

Element Percentage
C 0.18 - 0.23
Cr 0.4 - 0.6
Fe 96.9 - 98.02
Mn 0.7 - 0.9
Mo 0.15 - 0.25
Ni 0.4 - 0.7
P 0.035 max
Si 0.15 - 0.35
S 0.04 max
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