Attention to Detail for Accurate Custom Cuts

With the tightest custom cut tolerances of any small quantity US metal supplier, your materials get a 3-point inspection to ensure quality and accuracy before it ships.

Product Details, Specifications, and Technical Information

See Alloy Steel Tolerances

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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Dimension Name Specification
Thickness 1.75
Max Width 48
Max Length 120
Alloy 4340
Temper Annealed
MTR Availability Yes
Material Alloy Steel
Shape Sheet/Plate
Custom Cut Warehouse 1
Weight/Lineal Foot
71.57 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 500 kg load 217
Rockwell Hardness B Scale 95
Density g/cm^3 7
Elongation Typical % 22
Melting Point °F 2580 - 2650
Modulus of Elasticity KSI x 10^3 27
Specific Heat BTU/lb-°F (32-212F) 1
Reduction of Area % 50
Thermal Conductivity BTU-in/hr-ft^2-°F 309
Tensile Strength KSI 108
Shear Strength KSI 63
Yield Strength KSI 68
Chemistry Information: 4340 Alloy Steel
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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