Material standard:
75We8 (ОТ 1.5634, AISI L2).
Chemical composition (typical):
Углерод (С): 0.75%
Nickel (В): 1.8%
Марганец (Мин.): 0.30-0.50%
Кремний (И): 0.25-0.40%
сера (С): ≤ 0.025%
Фосфор (п): ≤ 0.025%
Mechanical properties (после термической обработки):
Предел прочности: 800-1200 МПа (depending on the specific heat treatment process)
Твердость: 58-62 СПЧ (закалка + закалка)
Удлинение: ≥ 8%
Предел текучести: 500-800 МПа
Heat treatment process:
Отжиг: Soften the material and improve the machinability. The annealing temperature is about 820-860°C and cool slowly.
закалка: Heat to 780-810°C and oil cool. The hardness after quenching can reach 58-62 СПЧ.
Закалка: Usually carried out at 150-250°C to improve toughness and reduce brittleness.
Production Specification range(мм): 0.10-5.0*10-1250мм,The length can be controlled according to customer needs.
75Ni8 steel application
75Ni8 cold-rolled heat-treated steel strip coils and plates, known for their high hardness, excellent wear resistance, and good toughness, perform exceptionally well under quenching and tempering processes. These materials are capable of enduring high stress and wear over extended periods, making them particularly suitable for the production of cutting tools, лезвия пилы, and band saws. Their outstanding cutting performance and long service life have earned them widespread recognition.
In the field of stamping dies, 75Ni8 steel demonstrates excellent impact resistance and wear resistance, making it ideal for frequently used molds and high-strength processing equipment.
Кроме того, due to its elasticity and strength, this steel grade excels in the production of springs and other elastic components, particularly those requiring high strength and long-term stress resistance. Its high precision and durability make it an ideal material for precision tool manufacturing, such as gauges, rulers, and other tools requiring high wear resistance and dimensional stability.
In the manufacture of mechanical parts, аэрокосмический, and the automotive industry, 75Ni8 steel meets the demands for high strength and fatigue resistance. It is widely used in engine components, шестерни, подшипники, and other critical structural parts. Furthermore, it is suitable for high-performance shearing tools and other industrial cutting equipment, ensuring blades remain sharp for extended periods and can withstand harsh working conditions. Поэтому, 75Ni8 steel strip coils and plates are the preferred materials for producing high-strength, high-precision, and long-lasting components in various industrial applications.
