AISI 440C Stainless Steel Balls Steel Sphere Metal Balls 4.762mm 6.350mm 31.750mm
Stainless Steel Balls
Mouette supply high-quality stainless steel balls for specific applications.
We mainly make:
- Stainless steel balls: AISI304
- Stainless steel balls: AISI316
- Stainless steel balls: AISI420
- Stainless steel balls: AISI440C
AISI440C Stainless Steel Balls
Profile
AISI 440C stainless steel balls provide maximum hardness, toughness and dimensional stability. They are highly resistant to rolling-contact fatigue. 440C stainless steel balls are used in a hardened condition, perform similarly to tool steels, and are ideal for antifriction bearings (rolling bearings).
Specifications
Carbon | Chromium | Molybdenum |
0.95 – 1.20% | 16 – 18% | 0.75% max |
Characteristics
440C stainless steel balls achieve the highest hardness following heat treatment: Rockwell C 58 to 62.
Corrosion Resistance
440C stainless steel balls generally have excellent resistance to mild acids, alkalis, foods, fresh water and air.
Typical Hardness
Rockwell C 58-62 measured on parallel flats.
Ball Sizes
Available in sizes from 1mm to 150mm in grades 10 through 1000.
Applications
stainless steel balls 440C are typically used in petroleum industry, bearing assemblies, check valves, and other applications where corrosion resistance and maximum hardness is critical.




