Balls - Micro balls
Glass, brass and other balls
From high-tech polymers to exotic alloys and glass, our selection of precision balls and micro-balls is engineered to meet the most rigorous industrial requirements. Whether your application demands the chemical resistance of Soda-lime glass, the extreme temperature stability of Hastelloy C, or the exceptional impact strength of Polycarbonate, we provide materials precisely calibrated for performance.
Our range covers everything from electrical conductivity with Phosphor Bronze and Aluminium to specialized solutions like Rockbit balls for offshore operations. Explore our diverse material portfolio, featuring detailed chemical compositions and mechanical properties designed to ensure reliability in even the most challenging environments.
Glass
SiO2 70.9, Al2O3 0.1, CaO 11.9, Na2O 8.9, K2O 7.3
Used for applications where chemical resistance, high electrical insulation performance and high hardness is required. This type is soda glass but lead glass and boro silicate are available.
Hardness Mohs 6
Phosphor Bronze
PB102 CDA-464 SAE C-464000, Cu 92-94%, Sn 6-8%
Good corrosion resistance, widely used as an electrical conductor.
Hardness HRb 75-98
Brass
Cu 59/65, Zn 35/37
Good corrosion resistance in ambient air and sea water, unstable in acid and alkalis.
Hardness HB 75
Aluminium
Al 99, Cu 0.15, Mn 0.05, Zn 0.1
Low weight, good electrical and heat conductivity, high corrosion resistance but low mechanical strength (Duralumin is hardenable to HB 105).
Hardness HB 43
Hastelloy C
Ni 57, Cr 16.5, Mo 17, W 4.5, Fe 5
Used in place of high speed steels when high temperatures are involved – stable up to 1040oC (1900oF).
Hardness HB 241
Phenolic resin
Density: from 1.30 to 2.40 g/cm3
Hardness: H77-90 Rockwell
Low cost material with good mechanical properties. High gloss finish. Excellent colorability.
Polyester
Density: from 1.23 to 1.47g/cm3
Hardness: H50 Rockwell
Same as above, but lighter and excellent colour matching possibilities. Dimensional stability.
Polycarbonate
Density: 1.20g/cm3
Hardness: R110-120 Rockwell
Exceptionally high impact, tensile, shear and flexural strength. High transparency. Good electrical insulation properties.
Polyamide
Density: from 1.38 to 1.45 g/cm3
Hardness: M109-119 Rockwell