ALLOY STEEL
Alloy Steel Round Bars are engineered for applications that demand superior strength, toughness, and wear resistance. Produced with carefully balanced alloy compositions and controlled heat treatment, these steels deliver excellent mechanical performance, fatigue resistance, and machinability for critical engineering components.
| Grade | Primary Characteristic | Typical Applications |
|---|---|---|
| 1018 | Low-carbon, high-ductility. | Bushings, pins, and shafts requiring easy welding and forming. |
| 1020 | General-purpose carburizing steel. | Lightly stressed parts and case-hardened components. |
| 4140 | Chromium-Molybdenum high-strength steel. | Gears, bolts, and axle shafts; excellent toughness and fatigue strength. |
| 4330 | Premium Nickel-Chromium-Moly alloy. | High-impact aerospace and oilfield tools requiring extreme toughness. |
| 4340 | The ultimate deep-hardening alloy. | Heavy-duty crankshafts and landing gear; maintains strength in large sections. |
Available Heat Treatment Conditions
To save you time in downstream processing, we offer these grades in specific metallurgical states:
- Normalized: Air-cooled to refine grain structure and relieve internal stresses, providing uniform hardness and improved machinability.
- Quenched & Tempered (QT): Heat-treated to specific hardness levels (e.g., 28-32 HRC) to achieve the perfect balance of high tensile strength and impact resistance.
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