1045 Medium Tensile Solid Round Bar

1045 medium tensile steel is a cost-effective hydraulic steel for rams, shafts and pins where extreme strength isn’t the priority. FPD supplies 1045 solid round bar in imperial and metric sizes, and our team can help you decide whether it suits the job or whether you need a higher-grade steel. Call with your size and we’ll check stock. Please note that all imperial bar between 1" - 1 1/4" and metric bar between 25mm - 30mm are supplied in 1 metre increments only.

An economical choice for hydraulic applications

1045 is widely used for hydraulic rams and shafts in applications such as agriculture, where good performance matters but high strength is not critical. It machines well, so it’s easy to turn, drill, mill and finish to your drawing.

Where 1045 fits, and where it doesn’t

1045 suits general-duty components. It’s generally not recommended for critical applications, particularly where high strength is needed together with ductility or toughness. If you’re unsure, talk to us before you order. Choosing the right grade up front avoids rework and early failures.

Specifications

• Chemical composition (%): Carbon 0.43 to 0.50, silicon 0.10 to 0.35, manganese 0.60 to 0.90
• Nearest standards: AS 1045, AISI 1045, BS 080A47 / EN43B, DIN 1.0503 / C45
• Stock range carried (outer diameter): 1" to 8" imperial, 25 mm to 200 mm metric
• Colour code: violet (imperial and metric)

Common applications

• Hydraulic rams and clamps
• Shafts and spindles
• Axles and pins
• Connecting rods
• Bolts and studs
• Rolls

Welding, machining and heat treatment

• Machinability: very good. Suited to sawing, turning, drilling, broaching, milling and tapping.
• Welding: functional weldability using low hydrogen electrodes. In the hot rolled and normalised condition, stress relieve after welding. Welding in the hardened and tempered condition is not generally recommended.
• Heat treatment: can be annealed, normalised, hardened, tempered, stress relieved, and flame or induction hardened. Exact temperatures and times depend on section size, shape and your facilities.

We’re hydraulics specialists, so we understand how these components work in service. We can help you match the grade and size to your application and keep your project moving. Need 1045 round bar? Call (07) 849 5771 or request a quote online.