440 stainless steel balls is usually produced by stainless steel forging process, the present stage of the commonly used stainless steel ball material has 201, 302, 304, 316, 316L, 420, 440C.
440 stainless steel balls definition: steel that contains 12.5% or more chromium and is highly resistant to chemical (acid, alkali, salt) corrosion.
Principle: stainless steel is not rust, but not easy to rust. Its principle is through the addition of chromium element, forming a layer of dense structure of chromium oxide layer on the surface of the steel, can effectively block the steel and air contact again, so that the oxygen in the air can not enter the steel, and achieve the effect of preventing steel rust.
440 stainless steel ball: performance: hardness up to 56-58 degrees, magnetic, good corrosion resistance, wear resistance and toughness
Applications: 440 stainless steel balls mainly used in bearings, stamping/hydraulic parts, valves, sealing refrigeration equipment, aerospace high-precision mechanical parts, crafts, toys.
Specification of 440 stainless steel balls: 0.5 mm - 100 mm.
Application:440 stainless steel balls is usually used for precision and rust performance requirements are higher industries: aviation, aerospace, bearings, motors, high precision instruments, valves, petroleum.
Features: metallographic structure belongs to Martensite type steel, production process requirements are higher, the domestic production of 440 stainless steel balls enterprises are less, so the production of 440C material enterprises are often crowned with the reputation of special stainless steel.
Heat treatment process is complex, easy to crack, and high precision requirements, is the hardest stainless steel ball :HRC≧58. The hardness is close to the bearing steel ball, but it has stronger anti-rust and anti-corrosion performance than the former.
If you need 440 stainless steel balls or need any other bearings, please feel free to contact me to get more detail!
Contact: Leon
Email: nsk@zyslbearing.com
Skype: lh19881023
MP/Whatsapp: +8615098916271
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