Hot rolled 1045 carbon steel round bar is a widely used material in the machinery industry due to its balanced mechanical properties, cost-effectiveness, and versatility.
Chemical Composition of Hot Rolled 1045 Carbon Steel Round Bar for Machinery
| C | 0.42 - 0.48 | |
| 0.60 - 0.90 | ||
| P | <= 0.040 | |
| S | <= 0.040 | |
| 0.15 - 0.35 | ||
| - | Total <= 0.50 (e.g., Cr, Ni, Cu) |
| H7 | H8 | H9 | H10 | H11 | F7 | F8 | |
|---|---|---|---|---|---|---|---|
| 6-10 | 0-0.015 | 0-0.022 | 0-0.036 | 0-0.058 | 0-0.09 | -0.013-0.028 | -0.013-0.035 |
| 10-18 | 0-0.018 | 0-0.027 | 0-0.043 | 0-0.058 | 0-0.09 | -0.016-0.034 | -0.016-0.043 |
| 18-30 | 0-0.021 | 0-0.033 | 0-0.052 | 0-0.084 | 0-0.13 | -0.02-0.041 | -0.02-0.053 |
| 30-50 | 0-0.025 | 0-0.039 | 0-0.062 | 0-0.1 | 0-0.16 | -0.025-0.05 | -0.025-0.064 |
| 50-80 | 0-0.030 | 0-0.046 | 0-0.074 | 0-0.12 | 0-0.19 | -0.03-0.06 | -0.03-0.076 |
| 80-120 | 0-0.035 | 0-0.054 | 0-0.087 | 0-0.14 | 0-0.22 | -0.036-0.071 | -0.036-0.9 |
Hot Rolled 1045 Carbon Steel Round Bar: Applications in Machinery Equipment
| Gears in gearboxes, transmissions, and drive systems for industrial presses, conveyors, agricultural equipment. | Offers high tensile strength (600–800 MPa) and hardness (up to 55 HRC after quenching and tempering), withstands heavy loads and wear. Good machinability enables precise gear cutting. | |
| Drive shafts, crankshafts, camshafts in engines; axles in construction and mining equipment. | Excellent toughness and fatigue resistance handle torsional forces and cyclic loading. Hot rolling enhances structural integrity, reducing fracture risk under dynamic stress. | |
| Bolts, nuts, studs for assembling industrial machinery frames, hydraulic systems, and heavy-duty components. | Heat-treatable to meet high-torque fastening strength requirements. Cost-effective for large-scale production. | |
| Pistons, cylinder rods, valves in hydraulic pumps, cylinders, and pneumatic systems. | Combines strength with machinable surface finish for durability in fluid-powered systems. Resists wear from hydraulic fluids and mechanical abrasion. | |
| Jigs, fixtures, dies for machining operations; simple cutting tools (drills, taps) for low-volume/non-critical applications. | Locally hardenable (e.g., case hardening) to form wear-resistant surfaces while retaining a tough core, suitable for tooling needing strength and impact resistance. | |
| Connecting rods, levers, supports in textile machines, printing presses, packaging equipment. | Moderate strength and better weldability (vs. higher-alloy steels) make it ideal for robust yet relatively lightweight structural parts. | |
| Shafts, gears, structural supports in tractors, harvesters, irrigation equipment. | Withstands harsh agricultural conditions (moisture, dirt, variable loads). Durability reduces maintenance costs. |
MOQ: 1 Ton
Terms of delivery: FOB, CFR, CIF.
Terms of payment: L/C, T/T, Western Union,Cash.
Quantity of stock: Normally have large quantity stocks.
Time of delivery: 3-7 days for samples;10-25 days for batch goods.Normally delivery in 20 days from production
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