AISI 440C, W 1.4125, X105CrMo17
Stainless Steel Balls aisi 440C offer maximum uniform hardness and good corrosion resistance, 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.
| Diameter range: | 0,5 mm – 150 mm |
| Grades: | ISO 3290 G 10-G500 |
Hardened Stainless Steel
AISI Type 440C stainless steel balls afford the advantage of maximum hardness combined with corrosion-resisting properties. This hardness, together with precise geometry and fine surface finish, makes them especially useful for both bearing and valve applications in petroleum refineries and other severe environmental applications.
Consumable electrode vacuum melted (CEVM) and vacuum induction melted/vacuum arc remelted (VIM-VAR) material is available upon request. All sizes and grades of corrosion-resisting hardened stainless steel balls are passivated.
Chemical Analysis AISI 440C
C=0.86-1.21%, Cr=16-18%, Mn=max 1.0%, Si=max 1.0%, S=max 0.025%, P=max 0.025%, Mo=0.40-0.65%, Ni=max 0,75%, Cu=max 0,5%
Mechanical Properties AISI 440C
Ball hardness is controlled with an eight point range of 60-66 Rockwell “C” as measured on parallel flat surfaces. Also, Type 440C stainless steel balls are magnetic. Custom heat treating is available for special hardness requirements.
| Tensile strength: | 200 kgs/mm2 |
| Yield strength: | 193.2 kgs/mm2 |
| Modulus of elasticity: | 20.392 kgs/mm2 |
| Hardness: | HRC 60 – 66 |
| Density: | 7,750 g/cm³ |