Plastic Balls:

We provide plastic balls as per specification and quantity.

Specification Specific Gravity Hardness Shore Normal Condition Max Temp. Resistance ° C Water Absorption Cold Resistance Colour Polyamide - A (Nylon-PA) 1,13 80 (D) 100° C 120° C 3% very good white Hostaform-C (Delrin-POM) 1,45 80 (D) 100° C 140° C minimum upto -40° C white Teflon (PTFE) 2,10 60 (D) 260° C 300° C absent very good white GRADES & TOLERANCES GRADE  Sphericity Tolerance Surface um. Micro-Inches um. Micro-Inches   I 12.5 500 +/-12.5 +/-500 Polished II 25.0 1000 +/-25 +/-1000 Polished III 125.0 5000 +/-125 +/-5000 Unpolished * These characteristics are given by plastic ball manufacturers. they can differ on the types of production cysle. CORROSION RESISTANCE CHARTS PLASTIC MATERIAL Nylon Delrin PTFE Acetylene + + + Ethanol + + + Ethelene Glycol + + + 30% Ammonia + + + Ammonium Chloride + + + Arsenic Acid + + + (Lead Free) Gasoline + + + High-Test Gasoline + + + Javel Water - - + Hydrochloric Acid - - + 30% Acetic Acid - ± + Natural Gas + + + Vinegar + + + Greases, Eatable Oil + + + Formaldehyde ± + + Fuel Oil + + + Isopropanal + + + Sea Water + + + Methanol ± + + Milk + + + Conc, Lactic acid - + + Mineral Oil + + + Caustic Soda + ± + Ozone ± - + Oil (Kerosene) + + + Phenol • - + Phosphoric Acid - - + Liquid Propane + + + Conc, Nitric Acid - - + Hydrochloric Acid - - + 10% Hydrochloric Acid - - + 95% Foming Sulphuric Acid • - + Water, Spring Water + + + hydrogen + + + Tartaric Acid + ± + Xylene + + + + = Resisting / ± = Resisting under reserve factor / • = Soluble

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