Alloy Steel Sheet 4340 Annealed offers very high strength and weldability without compromising steel abrasion or impact resistance. Common uses for this alloy include the automotive, aerospace, and tooling industries, or anytime steel will be highly stressed.

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Product Information

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Please note:

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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
Production Method
Rough Turned
Metal Type
Alloy Steel
Shape
Bar-Round
Yes
RoHS
Yes 6C
REACH
No
Weight/Lineal Foot
170.62 pounds
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Mechanical Properties

Density g/cm^3
8
Ultimate Tensile Strength KSI
108
Yield Tensile Strength KSI
68
Brinell Hardness 500 kg load
217
Shear Strength KSI
63
Melting Point °F
2580 - 2650
Rockwell Hardness B Scale
95
Elongation % in 2 in.
22
Electrical Conductivity % IACS
8
Machinability %
50
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Chemistry Information : 4340 Alloy Steel

Element
Percentage
Element
Percentage
Element
Percentage
C
0.37 - 0.43
Cr
0.8
Fe
96
Mn
0.7
Ni
1.83
P
0.035  max
S
0.04  max
Si
0.23
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