440C Stainless Steel Balls
· Applications: 440C stainless steel balls are usually used for precision and corrosion performance are demanding industries: aviation, aerospace, bearings, motors, high precision instruments, valves, oil.
· Features: microstructure is martensitic steel, the production process are higher, domestic enterprises can produce less stainless steel 440C, 440C material it can produce is often labeled a special stainless steel business reputation. Heat treatment process more complicated, easy to crack, with high precision, is the most hard a steel ball stainless steel ball: HRC a?§ 58. Hardness close to the bearing balls, but stronger than the former anti-rust, anti-corrosion properties.
· Comparison: more than 440 stainless steel ball with the rust, corrosion resistance, hardness and enhanced wear resistance is also increased.
Chemical composition of 404C stainless steel ball | |
C | 0.95-1.20% |
Cr | 16.0-18.0% |
Si | 1.00% |
Mn | 1.0% Max. |
P | 0.040% |
S | 0.030% |
Mo | 0.075% Max |
Physical properties of 404C stainless steel ball | |
Tensile strength | 285,000 psi |
Yield strength | 275,000 psi |
Elastic | 29,000,000 psi |
Density | 0.277 lbs/cubic inch |




