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

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 Morse 6

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

Polishing Media

Spheric-Trafalgar can supply Polishing Balls and Polishing Shapes in most materials. Specific quality requirements should be discussed with our sales personnel.