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Diamond Chrome Plating

Diamond Chrome XADC

Nodular Chromium Coating with Nano-Diamond Co-Deposit

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See the Diamond Chrome Difference

Armoloy's Diamond Chrome XADC takes all the advantages of traditional Armoloy TDC and incorporates a co-deposit of synthetic diamonds in a proprietary electroplating technique. This results in a micronodular, crack-free surface texture that provides a hard, uniform metallic chrome-clad surface capable of withstanding the most aggressive wear applications.
The enhancement of nano-diamonds, when added to an already high-performing nodular TDC, offers additional wear protection and advanced thermal properties. Even in the presence of complex configurations, diamond chrome ensures that part tolerances remain intact without the need for post-machining while providing simultaneous multi-valued protection attributes.
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Diamond Grade Surface Engineering

The Armoloy Corporation helps global manufacturers protect their most valuable, high-precision components with our premium functional coatings.

Armoloy offers two unique surface textures, (Micro Nodular / Micro Cracked) each meticulously designed to cater to your specific application needs. We engineer tailored benefits through texture versatility and co-deposits to optimize your component’s performance, effectively preventing metal failures and enhancing machine and output efficiency. Diamond Chrome XADC is one of Armoloy’s preferred solutions for manufacturers worldwide. By mitigating wear and corrosion and enhancing lubricity, our precision chromium coatings strengthen metal surfaces for various applications, extending their lifespan and improving operational consistency.

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Diamond Chrome XADC Highlights

  • Nano-diamond technology
  • High wear resistance
  • Exceptional hardness
  • Excellent thermal conductivity
  • Low coefficient of friction
  • Promotes lower operating temperatures
  • Absolute adhesion to substrate
  • Withstands extreme temperatures

Proven applications

Applying Diamond Chrome XADC plating can improve the long-term performance of applications within the following industries, as well as many others:

  • Plastic Injection Molding
  • Machined Components
  • Pumps & Compressors
  • Food Processing & Packaging
  • Automation & Linear Motion
  • Oil & Gas Extraction
  • Medical
  • Aerospace
  • Nuclear

Test Methods used to Certify Coatings

  • Aerospace Material Specification SAE AMS2438 Plating, Chromium Thin, Hard, Dense Deposit
  • Aerospace Material Specification SAE AMS2406 | AMS-QQ-C-320, Chromium Plating (Electrodeposited)
  • Aerospace Material Specification SAE AMS2460, Plating, Chromium
  • Process Specification No. 180 Nodular Thin Dense Chromium (NTDC) Plating
  • Honeywell GPS3116-1H Plating, Specialized
  • Fisher FFS 2E1 Chromium Coating for Service to 1100F(593C)
  • MIL—C-23422 Military Specification, Chromium Plating (Electrodeposited)
  • AMS2406 Plating, Chromium, Hard Deposit
  • ASTM B650 Standard Specification for Electrodeposited Engineering Chromium Coatings on Ferrous Substrates

Performance Characteristics

Diamond Chrome XADC by the Numbers

  • Surface hardness above 80Rc
  • 10% - 67% reduction in coefficient of friction
  • Corrosion resistance tested to AMS 2438 per ASTM B-117
  • Wear resistance less than 1.2 TWI per AMS 2438
  • Low processing temperature <150°F (<65°C)
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  • Typical deposit range of .0001 to .0003" (2.54 to 7.62 µm)
  • Effective deposit range of .000050” to .0007” (1.27 to 17.78 µm)
  • Withstands temperatures as high as 1600°F (-240°C - 870°C)
  • Thermal expansion range of 2.7 - 4.6 (10 ̄6/°F)
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Diamond Chrome XADC

Features & Benefits

Co-deposited nano-diamonds

Superior hardness and wear resistance

Micronodular surface

Minimizes opposing surface contact, dramatically reduces friction, improves release characteristics

High wear resistance

Exceptional for glass-filled molding and high-speed bearings

Low processing temperature <150°F

Eliminates annealing and will not distort the base metal

No sharp edge buildup

Minimizes dimensional change

Chemical resistance

Stable in acids, alkalis, solvents and gasses

Anti-galling characteristics

Excellent resistance to adhesive wear, enhanced tolerance of low-lube

Thermal conduction

Produces lower temperatures in extreme heat applications – lowering friction and enhancing wear resistance

Absolute Adhesion

Will not chip, flake, or peel from the substrate

Pure metallic non-toxic chromium coating

USDA approved coating and FDA compliant, nontoxic (USP tested, REACH compliant, RoHS compliant), Bio-compatible surface

Thin, precise deposits

Does not require post plate machining. Will not affect part tolerances or balance

Lubrication retention

Nodular surface retains dry and wet lubricants

The Science Behind Diamond Chrome XADC

For industries with particularly high-wear applications, Diamond Chrome XADC provides a superior option to alternative metal surface treatments. Similar to our traditional Armoloy TDC treatment, diamond chrome plating offers a hard and dense, yet thin chromium coating with a micronodular surface texture. The primary difference, however is that the co-deposited nano diamonds allow for increased thermal conduction that provides 20% higher cooling capabilities.

Additionally, with its advanced hardness and wear resistance, Armoloy’s Diamond Chrome XADC works as an application for nearly every common manufacturing steel. You can also expect absolute adhesion that will not chip, peel, or flake from the substrate—as well as increased corrosion resistance.

Additional Metal Treatments

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How Metals Fail

Some of the most common metal failures include:

Armoloy’s different metal coating solutions help industries avoid costly metal failures and unplanned downtime.

Partner With Us

Improve metal surface performance to its highest pinnacle. Meet our group of curious, innovative engineers and learn how we can help improve your industry with science-based solutions.