InnerArmor technology is flexible and offers virtually unlimited coating possibilities which can be applied to a wide range of base materials. And the specifications are easily tailored to meet specific application requirements, providing hardness, wear resistance, corrosion control, erosion resistance, temperature resistance, whatever is needed…
For example, in corrosive or erosive environments, thicker films may be preferred. While high-precision, dimension-critical applications may require thinner films. Harder films can best stand up to high abrasion factors. While softer films may be selected when maximum ductility or pliability is needed.
InnerArmor coatings can provide all of the above. Plus, they can combine multiple coating layers to deliver unique and finely-tuned performance characteristics.
InnerArmor Corrosion Control Coating Specification
InnerArmor Corrosion Control is a multi-layer coating that protects against corrosive and aggressive media, including acids, salts and hydrogen sulfide (H2S). The specifications of InnerArmor corrosion control are as follows:
Table 1. InnerArmor corrosion control coating specification
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Property
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|
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Environment
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Hydrogen sulfide (H2S), hydrofluoric acid (HF), hydrochloric acid (HCl), nitric acid (HNO3), sulfuric acid (H2SO4), salt, methane (CH4), CO/CO2
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Corrosion Resistance
18% HCl Test (submerged at 200°F for 8 hours):
Sour Autoclave Test (NACE TM 0185):
Salt Spray Test (ASTM B117 >500 hours):
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No undercutting, passed 67.5 volts holiday test
No undercutting, passed 67.5 volts holiday test
No effect
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Hardness
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1200 HV / 12 GPa (1000–1500 HV, to suit application)
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Young's Modulus (E-Modulus)
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100 GPa (100–120 GPa)
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Adhesion to Steel
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Excellent
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Coating Thickness
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30–80 microns (to suit application)
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Color
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Grey-Black
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Applicable Substrates
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Carbon Steel, Stainless Steel, Inconel®718, Ti/Ti Alloys, Ni/Ni Alloys
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Max Environment Temperature
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Up to 752°F (400°C)
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Deposition Rate
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Typical > 0.6 micron/minute
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Deposition Temperature
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248°F – 392°F (120°C–200°C) (substrate dependent)
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InnerArmor Sliding Wear Coating Specification
InnerArmor Sliding Wear Coating delivers wear resistance in wet, dry, oil, or drilling mud envi- ronments for applications such as reciprocating pistons and pumps. The specifications of InnerArmor sliding wear coatings are as follows:
Table 2. InnerArmor sliding wear coating specification
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Property
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Hard Coating
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Ultra-Hard Coatings
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Environment
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Wet, Dry, Oil, Drilling Mud
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Dry, Oil
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Hardness
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1200 HV / 12 GPa
(1000–1500 HV)
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2500 HV / 25 GPa
(2000–3000HV)
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Young's Modulus (E-Modulus)
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100 GPa (100–120 GPa)
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170 GPa (150–200 GPa)
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Sliding Wear Rate
(25N load w/ WC sphere surface)
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Typical 5.0E-07 mm3/Nm (Dry)
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Typical 5.0E-07 mm3/Nm (Dry)
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Coefficient of Friction
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< 0.05 (Dry)
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< 0.05 (Dry)
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Coating Thickness
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1–60 microns
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1–60 microns
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Color
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Grey-Black
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Grey-Black
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Applicable Substrates
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Carbon Steel, Stainless Steel, Al, Inconel®718, Ti/Ti Alloys, Ni/Ni Alloys
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Carbon Steel, Stainless Steel, Inconel®718, Ti/Ti Alloys, Ni/Ni Alloys
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Max Environment Temperature
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Up to 752°F (400°C)
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Up to 752°F (400°C)
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Deposition Rate
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Typical > 0.7 micron/minute
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Typical > 0.5 micron/minute
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Deposition Temperature
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248°F – 392°F (120°C–200°C) (substrate dependent)
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248°F – 392°F (120°C–200°C) (substrate dependent)
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InnerArmor Abrasive Wear Specification
InnerArmor abrasive wear coating – protects against erosion wear in high velocity sand and other particle flow environments. The specifications of InnerArmor abrasive wear coatings are as follows:
Table 3. InnerArmor abrasive wear coating specification
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Property
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|
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Abrasion Resistance: ASTM G65
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Passed
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Hardness
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2000 HV / 20 GPa (1800–2200 HV, to suit application)
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Young's Modulus (E-Modulus)
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170 GPa (150–200 GPa)
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Sliding Wear Rate
(25N load w/ WC sphere surface)
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Typical 5.1E-07 mm3/Nm (Dry)
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Coefficient of Friction
(25N load with WC sphere surface)
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< 0.05 (Dry)
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Adhesion to Steel
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|
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Coating Thickness
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50–80 microns (to suit application)
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Color
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Grey-Black
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Applicable Substrates
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Carbon Steel, Stainless Steel, Al, Inconel®718, Ti/Ti Alloys, Ni/Ni Alloys
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Max Environment Temperature
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Up to 752°F (400°C)
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Deposition Rate
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Typical > 0.4 micron/minute
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Deposition Temperature
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248°F – 392°F (120°C–200°C) (substrate dependent)
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InnerArmor Erosion Wear Specification
InnerArmor Erosion Wear Coating – protects against erosion wear in high velocity sand and other particle flow environments. The specifications of InnerArmor Erosion Wear Coatings are as follows:
Table 4. InnerArmor erosion wear coating specification
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Property
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|
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Erosion Resistance: ASTM G76
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Passed, no erosion damage to surface
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Hardness
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2000 HV / 20 GPa (1800–2200 HV, to suit application)
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Young's Modulus (E-Modulus)
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170 GPa (between 150–200 GPa)
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Sliding Wear Rate
(25N load w/ WC sphere surface)
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Typical 5.1E-07 mm3/Nm (Dry)
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Coefficient of Friction
(25N load with WC sphere surface)
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< 0.05 (Dry)
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Adhesion to Steel
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|
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Coating Thickness
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50–80 microns (to suit application)
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|
Color
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Grey-Black
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Applicable Substrates
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Carbon Steel, Stainless Steel, Al, Inconel®718, Ti/Ti Alloys, Ni/Ni Alloys
|
|
Max Environment Temperature
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Up to 752°F (400°C)
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Deposition Rate
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Typical > 0.4 micron/minute
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Deposition Temperature
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248°F – 392°F (120°C–200°C) (substrate dependent)
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InnerArmor Flex Wear Specification
InnerArmor Flex Wear Coating – protects flexible metals (e.g., aluminum) against wear and corrosion. The specifications of InnerArmor Flex Wear Coatings are as follows:
Table 5. InnerArmor flex wear coating specification
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Property
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|
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Flexibility
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Bendable to 120 degrees depending upon substrate thickness
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Hardness
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2000 HV / 20 GPa (1000–2500 HV, to suit application)
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|
Young's Modulus (E-Modulus)
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109 GPa (85–140 GPa)
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Sliding Wear Rate
(25N load w/ WC sphere surface)
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Typical 3.9E-07 mm3/Nm (Dry)
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Coefficient of Friction
(25N load with WC sphere surface)
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< 0.01 (Dry)
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Adhesion to Steel Foil (0.01 inch thick)
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|
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Coating Thickness
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12 microns
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Color
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Grey-Black
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Applicable Substrates
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Stainless Steel, Aluminum, other conductive foils
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Max Environment Temperature
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Up to 752°F (400°C)
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Deposition Rate
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Typical > 0.4 micron/minute
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Deposition Temperature
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248°F – 392°F (120°C–200°C) (substrate dependent)
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Custom Combinations of InnerArmor Coating
To address specific application requirements InnerArmor coatings can be designed to protect against a combination of wear, erosion, and/or corrosion. In addition, InnerArmor can employ near-frictionless diamond-like carbon coatings for improved part performance.
Applications of InnerArmor Coating
InnerArmor coatings have been successfully tested across many applications including:
- Oil and gas applications – surface, subsea and downhole drilling, completion and production equipment
- Automotive applications – pistons, valves, tappets, cylinders, cylinder liners
- General applications – pump cylinders, gate valves, shut-off sleeves
Materials for InnerArmor Coating
InnerArmor coatings may be created out of virtually anything that can be ionized. The technology is capable of depositing carbon-based coatings, metals and oxides. And the coatings may be either conductive or non-conductive. Titanium nitride, tantalum carbide, chromium carbide, silicon carbide, silicon oxi-carbide and diamond-like carbon (DLC) films are but a few examples. Inner Armor can also be applied at very high deposition rates, compared to external plasma CVD methods, lowering processing costs.
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This information has been sourced, reviewed and adapted from materials provided by Sub-One Technology - Pipe and Tube Coatings.
For more information on this source, please visit Sub-One Technology - Pipe and Tube Coatings.