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Product Details, Specifications, and Technical Information

See Alloy Steel Tolerances

Alloy Steel Round Bar 4130 Normalized Cold Finish offers good strength and weldability without compromising steel abrasion or impact resistance. This material comes in the normalized condition and doesn't require further heat treatment. It is typically used in structural applications, gears, fasteners, and aircraft exteriors.

shape Image
Dimension Name Specification
Diameter 0.4375
Max Length 144
MTR Availability Yes
Full Length true
Material Alloy Steel
Shape Bar-Round
Custom Cut Warehouse 1
Alloy 4130
Temper Normalized
Material Specifications

This material meets the following specs: ASTM -A108, AMS -6348, AMS -6370, AMS/MIL -S-6758

Weight/Lineal Foot
0.52 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
Ultimate Tensile Strength KSI 97
Density g/cm^3 8
Electrical Conductivity % IACS 7
Elongation % in 2 in. 26
Brinell Hardness 500 kg load 197
Rockwell Hardness B Scale 92
Shear Strength KSI 62
Yield Tensile Strength KSI 63
Melting Point °F 2590 - 2660
Chemistry Information: 4130 Alloy Steel
Element Percentage
C 0.28 - 0.33
Cr 0.8 - 1.1
Fe 97.3 - 98.22
Mn 0.4 - 0.6
Mo 0.15 - 0.25
P 0.035 max
Si 0.15 - 0.35
S 0.04 max
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