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18 Οκτ 2024 · 440 stainless steel generally contains between 16 and 18% chromium. Compared to lower-carbon stainless steels, this gives it good corrosion resistance while offering enhanced strength and hardness through solid solution strengthening and carbide formation. The 440 series is further subdivided into three grades: 440A, 440B, and 440C.
Mechanical Properties. SS440 Heat Resistance. AISI 440 has good oxidation resistance in intermittent use below 815 °C and continuous use up to 760 °C in air. Heat Treatment of SS440. SS440 heat treatment including annealing, quenching, tempering and stress relieving, etc. Annealing. Subcritical annealing temperature range: 675-760 ℃ (1250-1400 ℉)
While 440 stainless steel can be used in a wide range of applications, it’s particularly well-suited for knife blades. Its high hardness and wear resistance make it ideal for maintaining a sharp edge, while its reasonable corrosion resistance makes it suitable for everyday use.
7 Φεβ 2023 · Due to its superior combination of physical and mechanical properties, 440c stainless steel is used in a variety of applications, including cutlery (knives), surgical instruments, aerospace components (shafts & valves), bearings & roller components, pump components & valves, ball screws & lead screws, petrochemical industry parts (valves), etc.
440C (UNS designation S44004) is a martensitic 400 series stainless steel, [1] and has the highest carbon content of the 400 stainless steel series. It can be heat treated to reach hardness of 58 to 60 HRC. It can be used to make rolling contact stainless bearings, e.g. ball bearings and roller bearings. It is also used to make knife blades.
2 Σεπ 2024 · 440 Stainless Steel is a martensitic stainless steel with a unique chemical composition that imparts its distinctive properties. The primary elements in 440 Stainless Steel include: Chromium (16-18%): Enhances corrosion resistance and hardness. Carbon (0.60-0.75%): Increases hardness and strength.
440C stainless steel is a high-carbon martensitic stainless steel, high carbon content in 440C provides high strength, moderate corrosion resistance, good hardness, and wear resistance. these characteristics make 440C particularly suited to such applications as ball bearings and valve parts, it has the highest hardness among stainless steel.
