Cold Roll Round Bar 1144, also called "Stress Relieved" or "Stressproof®", has excellent strength, hardness, and it is easily machined. 1144 is also designed to resist warping during heat treatment. It is typically used in nuts, bolts, arbors, gears, pinions, piston rods, sleeves, shafts, and screws.
Stressproof is a trademark of LaSalle Steel Co.

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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
1
Max Length
144
Alloy
1144
Production Method
Cold Finish
Metal Type
Carbon Steel
Shape
Bar-Round
No
Custom Cut Warehouse
1
Weight/Lineal Foot
2.67 pounds
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Mechanical Properties

Density g/cm^3
8
Yield Tensile Strength KSI
90
Ultimate Tensile Strength KSI
108
Brinell Hardness 3000 kg load
210
Rockwell Hardness B Scale
95
Melting Point °F
2580 - 2650
Elongation % in 2 in.
10
Shear Strength KSI
73
Electrical Conductivity % IACS
7
Machinability %
83
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Chemistry Information : 1144 Carbon Steel

Element
Percentage
Element
Percentage
Element
Percentage
Fe
97.54 - 98.01
C
0.4 - 0.48
Mn
1.35 - 1.65
P
0.04  max
S
0.24 - 0.33

This 1" diameter round bar made from 1144 carbon steel is stress relieved for excellent strength and hardness. It is commonly used in manufacturing nuts, bolts, arbors, gears, pinions, piston rods, sleeves, shafts, and screws.

Yes, the round bar is available in multiple lengths from 12" up to 144" and can be custom cut at the warehouse to your desired size.

The 1144-Stressproof carbon steel round bar has a high machinability rating of 83, making it easy to machine for various precision applications.

No, Material Test Reports (MTRs) are not available for this product.

This round bar is cold finished (cold rolled) and stress relieved to resist warping during heat treatment. It has a Brinell hardness of 210 and Rockwell hardness of 95.

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