What Is The Difference Between 1018 And 4140 Steel?

What Is The Difference Between 1018 And 4140 Steel? 1018 Steel is a mild, low carbon steel that is machinable, weldable and is useful where there are no requirements for high strength. 4140 alloy steel is generally stronger and harder than carbon steel. It provides high impact resistance as well as high fatigue and torsional