4330V alloy steel bar has hardenability that is improved with the addition of vanadium. In the heat treated condition 4330V has good fatigue strength and toughness. Machining is best when annealed, normalized and tempered. It also may be welded with traditional methods.
Typical Chemical Properties
Minimum Properties | Tensile Strength , psi | 130,000 |
Yield Strength, psi | 115,000 | |
Elongation | 16% | |
Hardness | BHN 321 – 375 | |
Chemistry | Carbon( C) | .30 -.34% |
Chrome (Cr) | 0.75-1.0% | |
Manganese (Mn) | 0.75-1.0% | |
Molybdenum (Mo) | 0.40 – .50% | |
Nickel ( Ni) | 1.65-2.0% | |
Phosphorus (P) | 0.025% | |
Sulphur (S) | 0.010% | |
Silicon (Si) | 0.15- 0.35% | |
Vanadium( V) | 0.05 – 0.10 % |