| Customization: | Available |
|---|---|
| Type: | Alloy Steel Bar |
| Standard: | AISI, DIN, GB |
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AISI 4330V Alloy Steel Round Bar High Strength Structural Material
AISI 4330V is a nickel-chromium-molybdenum-vanadium low-alloy high-strength structural steel. Compared with standard 4330 grade, the addition of vanadium improves hardenability, allowing the steel to achieve higher strength and excellent low-temperature impact resistance after quenching and tempering.
This alloy steel is designed for critical components under high stress and impact loads. It is widely used in the oil and gas industry for oil tools, drill bits, tool holders, and reamers, as well as in the aerospace sector for bolted joints and airframe structures.
Main Chemical Composition%
| C | Cr | Mn | Si | Mo | S | P | Ni | V |
| 0.26-0.33 | 0.75-1.00 | 0.75-1.00 | 0.15-0.35 | 0.35-0.50 | ≤0.015 | ≤0.025 | 1.65-2.00 | 0.05-0.10 |
| Process | Temperature (°C) | Cooling Method | Notes |
|---|---|---|---|
| Normalizing | 900-920 | Air cooling | - |
| Annealing | 830-860 | Furnace cooling | Hardness ≤ 241 HBW |
| Quenching | 850-880 | Oil quenching | - |
| Tempering | 600-650 | Still air cooling | After quenching |




Q4: What is your product packaging like?
A4: Our products are packaged accordingly in standard industrial packaging to ensure safety during transport. If you have special packaging requirements, please specify them when placing your order, and we will package your items accordingly.
Q5: What payment methods do you support?
A5: We accept a variety of payment methods, including T/T, L/C, Alipay, PayPal, etc. The specific payment method can be arranged flexibly based on the order amount and customer needs.