use and performance of stainless steel decorative balls of different materials use and performance of stainless steel decorative balls of various materials. Stainless steel decorative ball 440/440C performance: hardness up to 56- 58 degrees, magnetic, good corrosion resistance, wear resistance and toughness: mainly used in bearings, stamping/hydraulic parts, valves, seal refrigeration equipment, aerospace high-precision mechanical parts, Aerospace High-precision mechanical parts specifications: Φ1. 0- φ30
440C stainless steel decorative ball application field: 440C stainless steel decorative ball is usually used in industries with high requirements for precision and antirust performance: aviation, aerospace, bearings, motors, high-precision instruments, valves and petroleum characteristics: the metallographic structure belongs to martensitic steel with high production process requirements, and there are few domestic enterprises capable of producing stainless steel 440C, therefore, enterprises that can produce 440C materials are often reputed as special stainless steel. The heat treatment process is more complicated and special stainless steel is reputed. The heat treatment process is complicated, easy to crack, and has high precision requirements. It is a hard stainless steel ball in the steel ball: HRC ≥ 58. The hardness is close to that of the bearing steel ball, but it has stronger rust prevention and corrosion resistance than the former. It is easy to crack and requires higher precision. Compared with 440 stainless steel balls, it has stronger rust prevention and corrosion resistance, higher hardness and higher wear resistance.
stainless steel decorative ball 420 performance: hardness up to 51- 52 degrees, magnetic, with certain corrosion resistance and toughness; Uses: Suitable for all kinds of precision machinery, bearings, electrical equipment, transportation tools, household appliances, etc. It is mostly used to manufacture parts resistant to atmospheric, water vapor, water and oxidizing acid corrosion; Specifications: Φ2. 0-φ 25. 4. Application field of 420 stainless steel decorative balls: 420 stainless steel decorative balls are usually used in industries that require high precision and antirust performance: Motorcycle accessories, pulleys, stainless steel bearings, plastic bearings, handicrafts, valves and petroleum. Features: the representative of martensitic steel, commonly known as stainless steel, is magnetic, has good antirust performance, and has high hardness HRC50-55.
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