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Carbon Steel Round Bar 2-1/4" 1045 Precision Ground A108

$73.30 for 12"
Diameter2-1/4"
MaterialCarbon Steel
Grade1045
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Quarter-inch increments. Min: 1", Max: 96"
0"24"48"72"96"
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Request a quote for cuts longer than 96" · Non-refundable · Tolerance: ±0.125"
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Description

Carbon Steel Round Bar 1045 PG A108 is a medium-carbon steel bar offering high strength and hardness, designed for use in heavy-duty applications. Manufactured to ASTM A108 specifications, it provides excellent machinability, making it ideal for precision components such as shafts, gears, and automotive parts. The ground finish ensures a smooth surface with tighter tolerances, offering superior performance in machining and fabrication processes.
Not enough in stock? Call us referencing part #238. We only show partial inventory online.
DIAMETER
Specifications
MaterialCarbon Steel
Grade/Alloy1045
ShapeRound Bar
Diameter2.25 in
Max Length96 in
Weight13.52 lb/ft
MTRAvailable Upon Request
Characteristics
WeldabilityFair
MachiningGood
Bending/FormingFair
Wear ResistanceGood
CorrosionFair
Shipping

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From the counter

About 1045 steel

1045 is a medium-carbon steel for parts that take real load or wear. The extra carbon, about 0.45%, buys a stronger, tougher bar you can actually heat treat: shafts, axles, pins, and equipment repair. If a 1018 part keeps bending or wearing out, 1045 is the next stop up. The chrome-plated shafting on our rack is 1045 underneath, plated for rollers, slides, and rod repairs.

Read the full 1018 vs A36 vs 1045 steel guide
Can you weld 1045?
Yes, but with homework: preheat it, use the right filler, and let it cool slowly, or the metal next to the weld turns hard and brittle. When in doubt on 1045, bolt it instead.
Should I buy 1018 or 1045?
1018 for clean machined parts that don't take much load. 1045 when the part carries load or wear, or when you plan to heat treat it. 1045 wins on strength and hardness, 1018 wins on easy machining and welding.