See Alloy Steel Tolerances

Alloy Steel Round Bar 4340 Annealed Rough Turned has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. Additionally, 4340 can be cold worked easily. It is typically used in military aircraft, automotive systems, hydraulic parts, machine tools, and a steel crankshafts.

shape Image
Dimension Name Value
Alloy 4340
Temper annealed
Production Method hot rolled
Diameter 1.125
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 -A29, ASTM -A108, ASTM -A322, AMS -6415, AMS -6484, AMS/MIL -S-5000

Weight/Lineal Foot
3.38 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.
Chemistry Information: 4340 Alloy Steel

Element

Percentage

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

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