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Carbon Steel Round Bar 2-1/2" 1144 Stress Proof A108

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Diameter2-1/2"
MaterialCarbon Steel
Grade1144
SKU: 00000268

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Description

Carbon Steel Round Bar 1144 SP A108 is a high-strength, stressproof carbon steel bar that offers superior hardness, toughness, and machinability. Manufactured to ASTM A108 specifications, this round bar is ideal for high-tensile applications requiring durability and precision. Commonly used for shafts, gears, and fasteners, it provides excellent performance in environments that demand high strength, impact resistance, and fatigue resistance.

Specifications
MaterialCarbon Steel
Grade/Alloy1144
ShapeRound Bar
Diameter2.5 in
Max Length96 in
Weight16.69 lb/ft
MTRAvailable Upon Request
Characteristics
WeldabilityFair
MachiningExcellent
Bending/FormingFair
Wear ResistanceGood
CorrosionFair
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About 1144 steel

1144 is a free-machining medium-carbon steel, often sold as a stress-relieved 'stressproof' bar. It gives you high strength and good machinability without heat treatment, and it stays straight when you machine it because the internal stress is already relieved. Good for shafts, studs, and machined parts that need strength straight off the saw.

Read the full 1018 vs A36 vs 1045 steel guide
Why pick 1144 over 1045?
1144 machines more freely and comes stress-relieved, so it holds straight when you turn or mill it and gives high strength without heat treating. 1045 is the more common medium-carbon bar; 1144 is the one you reach for when machinability and straightness matter.