ACME-X Adamantium

Our platers have many, many years of experience dealing with all types of substrates. We can supply low phosphorous (1-4%), mid phosphorous (5-9%) or high phosphorous (10-13%) coatings. 

ACME-X Adamantium plating provides a higher hardness, significantly improving performance. A harder surface greatly reduces the coefficient of friction and the adhesive force, resulting in lower wear and longer life. This ability is further enhanced by using our ACME-X Cerakote coating on outside surfaces.

ACME-X Adamantium Plating Specifications

This report conforms to Aerospace Material Specification SAE-AMS-2404 for ACME-X Adamantium plating.

Properties of ACME-X Adamantium Plating

ACME-X Adamantium plating has several properties that change when the plating is heat treated. It is important to select the proper plating condition to suit the application.

  1. Superior Hardness
    As plated, mid phosphorous ACME-X Adamantium is around 55 on the Rockwell C scale. After heat treatment, which we perform, this can be brought up to 65 - 70 on the Rockwell C scale. As plated, low phosphorous ACME-X Adamantium is around 60 on the Rockwell C scale and after heat treatment, it can be brought up to 68 - 70 on the Rockwell C scale. In most applications, both types of ACME-X prove to be an excellent alternative to hard chrome.

  2. Corrosion Resistance and Surface Structure
    Depending on the percentage of phosphorous and thickness, can be up to 1000 hrs. in a salt spray test. Unlike cadmium or zinc, ACME-X is not a sacrificial coating, i.e. the coating corrodes before the basis metal. ACME-X Adamantium, because of its low porosity, encapsulates the basis metal. Corrosion rates are affected by many factors outside the control of the plater, such as the surface finish of the basis metal and the porosity of the basis metal.

  1. Friction Properties
    The coating consists of a nickel phosphorous alloy containing from 3 to 13% phosphorous, some trace impurities, and the balance nickel. Good frictional properties are produced by the phosphorous content, providing natural lubricity, minimizing heat buildup, and reducing scoring and galling. The coefficient of friction of ACME-X Adamantium plated steel is about 0.13 when lubricated and 0.40 when not lubricated, which is slightly higher than the friction of electrodeposited chromium. The friction properties are not affected by heat treatment.

  1. Uniformity of Plating Thickness and Deposition Rate
    Uniform thicknesses can be obtained on most surfaces, including small and intricate areas. Deposition is controlled by the surface charge of the part to be plated. Because the surface charge is completely uniform across the entire surface area of the part, deposition is the same at all points.

Mating Surface

Coefficient of Friction




ACME-X Adamantium vs Steel



Chrome vs Steel



Steel vs Steel



Chrome vs Chrome






ACME-X Adamantium vs Chrome