Stainless steel ball 440 / 440C: Performance: hardness of 56-58 degrees, magnetic, good corrosion resistance, high wear resistance and toughness. Uses: mainly used in bearings, stamping / hydraulic fittings, valves, seals refrigeration equipment, aerospace precision mechanical parts, handicrafts, toys. Specifications: 0.5mm-Φ100mm.
Applications: 440C stainless steel balls are usually used for precision and rust resistance are demanding industries: aviation, aerospace, bearings, motors, high-precision instruments, valves, oil.Features: microstructure is martensitic steel, the higher the production process requirements, relatively few domestic enterprises can produce stainless steel 440C, 440C are able to produce materials companies often dubbed special stainless steel in the world. Heat treatment process more complicated, easy to crack, and high precision, the ball is the hardest one stainless steel ball: HRC ≧ 58. Close to the hardness of ball bearings, but stronger than the former rust and corrosion performance.
Comparison: compared with 440 stainless steel ball stronger anti-rust, corrosion resistance, increased hardness, wear resistance increases.
420 stainless steel ball:Performance: hardness of 51-52 degrees, magnetic, a certain degree of corrosion resistance and toughness
Uses: Suitable for all kinds of precision machinery, bearings, electrical equipment, transport vehicles, and household appliances. For the manufacture of multi-resistant to the atmosphere, water vapor, water and oxidizing acid corrosion of parts.
Specifications: Φ2.0-Φ25.4
Applications: 420 stainless steel ball is usually used for precision and rust resistance are demanding industries: motorcycle parts, pulleys, stainless steel bearings, plastic bearings, crafts, valves, oil.Features: representatives of martensitic steel, commonly known as stainless iron, magnetic, have good rust resistance, high hardness HRC50-55.
Stainless steel ball 304 / 304HC
Performance: hardness ≦ 28 degrees, after the non-magnetic degaussing, anti-rust ability, in brine for a long time not rust
Uses: mainly used in medical equipment, baby bottles, valves, electronic components, etc.
Specifications: Φ1.0-Φ50.8
304 stainless steel ball:Applications: 304 stainless steel ball is the most versatile on the market of a ball can be used in medical equipment, chemical, aviation, aerospace, plastic hardware: perfume bottles, sprayers, valves, nail polish, motors, switches, electric irons, washing machines, refrigerators, air conditioners, medicine, auto parts, bearings, instruments, bottles.
Features: a typical representative of austenitic steel, generally non-magnetic, but after a ball of light will be magnetized, demagnetization can, HRC≤26. Good rust and corrosion performance.
Comparison: 304HC stainless steel ball more than 304 soft stainless steel ball, easier to process, and 304L stainless steel ball than the both of which have more rust and corrosion performance, easy welding, polishing of the fine, the surface is more suitable for demanding industries.
Stainless steel ball 316 / 316L :Performance: hardness ≦ 28 degrees, after the non-magnetic degaussing, anti-rust ability, non-corrosive
Uses: mainly used in medical equipment, food machinery, accessories, cosmetics, body jewelry, instruments and other equipment
Specifications: Φ1.0-Φ38.1
Applications: 316 stainless steel ball is a relatively high demand products, usually for specific industries such as medical equipment, chemicals, aviation, aerospace: perfume bottles, sprayers, valves, nail polish, body jewelry, cell phone panels.
Features: austenitic steel, steel ball industry is the most high-end one, HRC≤26, most suitable for higher corrosion requirements of the industry, the performance is better than the 304 stainless steel ball comparison: 316L stainless steel ball having more than soft white tougher, it is usually used for body jewelry. Fifth, the ball 201 stainless steel / polished stainless steel balls
Performance: hardness ≤26 degrees, after the non-magnetic degaussing
201 stainless steel ball / polished stainless steel balls Uses: mainly used in general hardware accessories, household appliances and accessories, such as stainless steel stamping
Specifications: Φ1.0-Φ38.1 Applications: 201 stainless steel ball is widely used in a variety of hardware industry, handicrafts, plastic products, such as lamps, switches, motorcycle accessories, luggage, bearings, die casting.
Features: part of nickel-steels, austenitic steel, non-magnetic, low price, excellent performance. Workability, welding, drilling, hardness HRC≤28. (Note: The new new ball to remind you, 201 stainless steel ball can not be used for rust, corrosion demanding industries such as: seawater or acidic substances).
302 stainless steel ball: Applications: 302 stainless steel ball is widely used in auto parts, aviation, aerospace, hardware tools, chemical industry. As follows: crafts, bearings, pulleys, medical equipment, then columns, other electrical appliances.
Features: 302 stainless austenitic steel ball, with close to 304, but 302 higher hardness, HRC≤28. Good rust and corrosion protection.