GRADE. PURITY % (TYPICAL) H2 LOSS (MAX) APPARENT DENSITY. g/cc. SCREEN ANALYSIS-MESH. %
+100 +200 +325 -325
SN200P 99.9 0.25 N.A
BAL 90 MIN TR. TR.
SN100 99.9 0.25 3.6-4.2
TR. BAL BAL. 60-75
SN170 99.9 0.25 3.2-3.6
- 5 MAX BAL 75-80
SN200 99.9 0.25 3.2-3.6
- TR. BAL 80-90
SN240 99.9 0.25 3.2-3.6
- TR. BAL 90-95
SN305 99.9 0.25 3.2-3.6
- TR. BAL 95 MIN
SN300 99.9 0.25 1.2-2.3
- TR BAL 98 MIN
    • BEARINGS  SN200, SN240 and SN305 are recommended for blending with copper for the production of bronze self- lubricating bearings and for bronze structural components. The specific grades are selected to have controlled dimensional change characteristics.

    • FRICTION COMPONENTS  SN200, SN240 and SN305 are used in metallic and nonmetallic friction material formulations to provide improved wear characteristics.

    • ABRASIVE WHEELS  SN305 and SN300 are used as matrix-bonding material for diamond and other abrasive wheels and cutting tools.

    • CHEMICAL FORMULATIONS  All the above grades listed above are widely used as catalysts in chemical formulations and for production of tin compounds.