IHC Offers Protection from Corrosion and Elevated Pressures. In the oil and gas industry, it’s imperative machinery is corrosion resistant to resist salt water and mud, and it can withstand the pressure increases of drilling. Not only does IHC protect from corrosion, but it also is highly wear-resistant and extremely hard. Due to the fact that Industrial Hard Carbon reduces friction and is corrosion resistant, it also helps keep pumping machinery running longer.