1.8159 (51CrV4) is a high-grade spring steel material. It has a high carbon content, which gives it excellent hardness and wear resistance, and a chromium-vanadium alloy composition that provides high strength and toughness. It also has good fatigue resistance and impact strength, making it suitable for applications where high dynamic stresses are involved.
This material can be heat treated to achieve the desired mechanical properties, such as hardness, strength, and toughness. It is typically supplied in a hardened and tempered condition, which means that it has already undergone a quenching and tempering process to achieve the desired hardness and toughness levels.
1.8159 (51CrV4) is commonly used in the production of various types of springs, as well as other high-strength components, such as gears and crankshafts. It is also used in the automotive industry for the production of valve springs, suspension springs, and clutch springs, as well as in the machinery and aerospace industries for similar applications.