... and other metal materials. Excellent fatigue resistance and creep resistance. Good abrasion resistance, self-lubricated and friction. High ... surface hardness, low abrasion consumption, impact fatigue and shock resistance, low coefficient friction, and self-lubricating, therefore, ... force.♦ Low water absorptionDisadvantages: ♦ Poor acid resistance♦ Weatherability is not excellent especially the UV♦ ...