Stainless Steel Balls

BALCO INDUSTRIES stainless steels offer excellent corrosion resistance in organic, acid, industrial and marine environments. The non-magnetic properties combined with exceptionally high toughness at all temperatures make these steels an excellent selection for many applications. AISI 440 stainless steel offers superior corrosion resistance due to the higher nickel and molybdenum content.

Stainless Steel type 440
  • Type 440 C Martensitic
    Type Analysis-AISI-440C
    C 0.95 ~ 1.20;Cr 16 ~ 18; Mo 0.75.
    Mn 1; Si 1; P O.04; S 0.03
  • General Information
    Balls of this straight chromium steel are Designed to provide stainless properties with maximum hardness. They are always used in a hardened condition and in some respects be have similar to steels.
  • Material Characteristic
    Outstanding characteristic is high hardness. Material is ferro-magnetic and makes a fair permanent magnet. As hardened ball, not readily machinable. All balls of this material are oassivated.
  • Hardness
    Rockwell C-58 to 65 measured on parallel flats.
Material Analysis
440C Stainless Steel Balls Material Analysis
Carbon 0.95-1.20%
Chromium 16.0-18.0%
Silicon 1.00%
Manganese 1.0% Max.
Phosphorus 0.040%
Sulfur 0.030%
Molybdenum 0.075%
Mechanical Properties
440C Stainless Steel Balls Mechanical Properties
Tensile Strength 285,000 psi
Yield Strength 275,000 psi
Modulus of Elasticity 29,000,000 psi
Density 0.277 lbs/cubic inch


Important Links

Grades of balls

   No of Balls per /Kg

Burnishing Applications I.S. 2898 (INDIA),I.S.O. 3290 Standard, G.B 308 (G.B)
  How Balls  are made ANSI/AFBMA- (USA),  
    AFNOR NF E 22-381 - (FRANCE)
    DIN 5401 (GERMANY)

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