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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 ≧ 58. Hardness close to the bearing balls, but stronger than the former anti-rust, anti-corrosion properties.
| 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 |
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