Precision Balls

Hastelloy C-276 and 'D' Balls

Hastelloy Balls

General Information:
Hastelloy is used extensively in check valves where maximum resistance to corrosion and wear is required.
Basic Composition: Hastelloy C-276 Hastelloy 'D'
Chromium 14.5/16.5% 1% Max.
Carbon 0.02% Max. 0.12% Max.
Molybdenum 15/17% ---
Silicon 0.08% 7.5/10%
Manganese 1.0% Max. 0.50/1.25%
Iron 4/7% 2.0% Max.
Nickel Balance Balance
Tungsten 3.0/4.5% ---
Cobalt 2.5% Max. 1.5% Max.
Copper --- 2/4%
Mechanical Properties:    
Hardness 87-90 Rockwell 'B' 30-39 Rockwell 'C'
Density 0.321lbs/ 0.282lbs/
Specific Gravity 8.88 7.81
Size Range: Hastelloy C-276 Hastelloy 'D'
Imperial 1/8" to 1.7/8" incl. 1/4" to 1" incl.
Basic Dia.Tolerance ±.002"
Sphericity .0001"
Surface Finish (RMS) 5 micro-inch
Corrosion Resistance:
Hastelloy C-276 is noted for its exceptional resistance to attack by strong oxidizing agents including cupric and ferric chlorides, chlorine, formic and acetic acids, acetic anhydride and brine solutions. It also resists the corrosive effects of hypochlorite, chlorine dioxide solutions and wet chlorine gas. Hastelloy 'D' is best known for its resistance to sulphuric acid at all concentrations and temperatures- even at boiling point, and also resists other corrosives including organic acids and acid salts.

ISO 9001:2000

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Silicon Nitride
Optical Quality Glass