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Hard Chrome Plating

Unique Properties of Hard Chrome Plating

  • Hardness
    Measures approximately 65 on the Rockwell "C" Scale.

  • Corrosion Protection

  • Repair Score Marks
    Hydraulic cylinder rods, for example, often become scratched or scored. They can be ground undersized, hard chromed to oversized, then ground to exact dimension, making them harder and better than new.

  • Correct Grinding Errors
    Sometimes a diameter on a shaft is mistakenly ground too small. We mask other surfaces and hard chrome the undersize diameter to oversize, so it can then be ground to the correct diameter, thereby saving the part.

  • Mold Release
    Hard chrome adds a lubricity factor, which serves to release parts, e.g. rubber parts, from a mold.

  • Wear Protection
    In a punch and die operation, the edges of the punch and the die will wear quickly (especially if the part being punched out is abrasive, e.g. brake shoe material), even if the punch and die are made from hardened tool steel. If they are hard chromed the wear will be greatly lessened. If a roller on a printing press is hard chromed, it will wear less. Many steel parts that are subject to wear can be hard chrome plated for wear protection, offering cost savings in the long run.

  • Abrasion Resistance
    Hard chrome offers excellent abrasion resistance because it has a high coefficient of friction. Hard chromed parts last many times longer than hardened tool steel.

  • Thickness
    Hard chrome can be applied from a thickness of .0001" (known as a "flash") up to about .040".
Before Hard Chrome Plating
Before Hard Chrome Plating


After Hard Chrome Plating
After Hard Chrome Plating
 
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