4140 steel bar, manufactured by Songshun Steel, offers exceptional strength and low notch sensitivity. This AISI 4140 alloy steel round bar, sheet, and plate exhibit outstanding fatigue strength and high low-temperature impact toughness, eliminating temper brittleness.

Primarily utilized in the manufacturing of high-strength parts under impact loads, it excels in creating fittings with substantial cross-sections. Applications include the horizontal eccentric shaft of forging machines and crankshafts for forging presses.

Our AISI 4140 steel bar stands out for its quality and reliability. As a leading supplier in the Minerals & Raw Materials category, Songshun Steel proudly provides this product for industries demanding superior performance under stress.