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Kashima Coat Properties Chart

Kashima Coat Properties Chart

Film Characteristics ◎…Good ◯…Average △…Poor ×…Bad

Material Film Thickness(μm) Hardness
[HV]
Film Characteristics Remarks
Recommended Limit Hardness Generation Capabilities Kashima Coat
A1050 30 50 350-450 Minimal additives other than aluminum result in excellent corrosion resistance as a raw material and good film generation
A1100 30 50 350-450
A2011 5 10 200-250 × × Not suitable for anodizing as it contains large Cu level of 5.0-6.0
A2014 20 40 250-350 High-strength material, but particularly bad corrosion resistance due to Cu. Stains and irregularities form easily after film generation
A2017 20 40 250-350
A2024 20 40 250-350
A4032 20 50 350-450 Si level of 11.0-13.5 results in grey appearance. Not suitable for coloring.
A5052
Recommended Materials
30 50 350-450 Aluminum based material with medium strength and good corrosion resistance. Generates good quality film.
A5056 20 30 350-450 Color close to that of aluminum achieved. Tendency to crack with increased film thickness. Film may peel.
A5083 20 50 350-450 Good strength and corrosion resistance, ideal material for welded structures.
A6061
Recommended Materials
30 50 350-450 Segregated patterns may appear after anodizing due to differences in manufacturers and methods of heat treatment.
A6063 20 50 350-450 Outstanding material for extrusion processing. Good quality film containing a large number of cracks is generated.
A7075 20 30 250-400 Extremely strong material, but appalling corrosion resistance makes it susceptible to corrosion due to its Cu and Zn content. Thick films of 20μm or higher may peel.
AC2A・B 20 30 250-350 Pores are visible after anodizing due to the material’s rough surface.
AC4C 20 40 300-400 Good film forming properties and surface roughness among cast metals.
AC7A・B 20 50 300-400 Can obtain film with similar color to aluminum. Relatively good film generation among cast metals.
AC8A 20 40 350-450 Superb strength and wear resistance, ideal material for engine pistons
ADC6 20 60 300-400 Good film generation among die-cast materials
ADC12
Recommended Materials
10 20 250-350 Difficult to process due to thick film caused by additional elements. Contaminants (silicon, release agent) left on surface, obvious irregular coloring. Good compatibility with Kashima Coat.

※This information is based on reference data from our company’s production lines.

Material Film Thickness(μm)
Recommended Limit
A1050 30 50
A1100 30 50
A2011 5 10
A2014 20 40
A2017 20 40
A2024 20 40
A4032 20 50
A5052
Recommended Materials
30 50
A5056 20 30
A5083 20 50
A6061
Recommended Materials
30 50
A6063 20 50
A7075 20 30
AC2A・B 20 30
AC4C 20 40
AC7A・B 20 50
AC8A 20 40
ADC6 20 60
ADC12
Recommended Materials
10 20
Material Hardness
[HV]
A1050 350-450
A1100 350-450
A2011 200-250
A2014 250-350
A2017 350-450
A2024 350-450
A4032 350-450
A5052
Recommended Materials
350-450
A5056 350-450
A5083 350-450
A6061
Recommended Materials
350-450
A6063 350-450
A7075 250-400
AC2A・B 250-350
AC4C 300-400
AC7A・B 300-400
AC8A 350-450
ADC6 300-400
ADC12
Recommended Materials
250-350
Material Film Characteristics
Hardness Generation Capabilities
A1050
A1100
A2011 × ×
A2014
A2017
A2024
A4032
A5052
Recommended Materials
A5056
A5083
A6061
Recommended Materials
A6063
A7075
AC2A・B
AC4C
AC7A・B
AC8A
ADC6
ADC12
Recommended Materials
Material Film Characteristics
Kashima Coat
A1050
A1100
A2011
A2014
A2017
A2024
A4032
A5052
Recommended Materials
A5056
A5083
A6061
Recommended Materials
A6063
A7075
AC2A・B
AC4C
AC7A・B
AC8A
ADC6
ADC12
Recommended Materials
Material Remarks
A1050 Minimal additives other than aluminum result in excellent corrosion resistance as a raw material and good film generation
A1100
A2011 Not suitable for anodizing as it contains large Cu level of 5.0-6.0
A2014 High-strength material, but particularly bad corrosion resistance due to Cu. Stains and irregularities form easily after film generation
A2017
A2024
A4032 Si level of 11.0-13.5 results in grey appearance. Not suitable for coloring.
A5052
Recommended Materials
Aluminum based material with medium strength and good corrosion resistance. Generates good quality film.
A5056 Color close to that of aluminum achieved. Tendency to crack with increased film thickness. Film may peel.
A5083 Good strength and corrosion resistance, ideal material for welded structures.
A6061
Recommended Materials
Segregated patterns may appear after anodizing due to differences in manufacturers and methods of heat treatment.
A6063 Outstanding material for extrusion processing. Good quality film containing a large number of cracks is generated.
A7075 Extremely strong material, but appalling corrosion resistance makes it susceptible to corrosion due to its Cu and Zn content. Thick films of 20μm or higher may peel.
AC2A・B Pores are visible after anodizing due to the material’s rough surface.
AC4C Good film forming properties and surface roughness among cast metals.
AC7A・B Can obtain film with similar color to aluminum. Relatively good film generation among cast metals.
AC8A Superb strength and wear resistance, ideal material for engine pistons
ADC6 Good film generation among die-cast materials
ADC12
Recommended Materials
Difficult to process due to thick film caused by additional elements. Contaminants (silicon, release agent) left on surface, obvious irregular coloring. Good compatibility with Kashima Coat.

※This information is based on reference data from our company’s production lines.

Cautionary Notes

  • 1
  • Please notify/consult us about the following when placing an order for Kashima Coat treatment.

    (a) Material properties (b) Film thickness (c) Hardness (d) Surface roughness (e) Position of electrode (f) Presence of masking and (g) Other precautions.

  • 2
  • The target value of film thickness tolerance is ±20%.

    【E.g. Film thickness: 10 ± 2 μm】Separate consultation is required as the film thickness tolerance differs with cast metal and die-cast materials. Please consult us regarding the amount of dimensional changes.

  • 3
  • The color tone of Kashima Coat treatment differs greatly depending on the materials used, film thickness and coating conditions.

    Please consult us if color tone control is required. A sample product will be created and controlled, displaying the color limits.

  • 4
  • Please note that any cutting lubricant or buff polishing dust from machining remaining on the supplied parts may affect the quality of the finished appearance.

  • 5
  • The anodizing film may not adhere properly due to the machining methods used with some materials

    (wire cutting, electrical discharge machining, etc.)

  • 6
  • Inclusion of Dissimilar Metals

    Will dissolve during treatment, so must be removed. Please enquire about the possibility of a masking based solution.

Comparative Data of Wear Test for Each Surface Treatment

Comparison of Friction Coefficients

Comparison of Friction Coefficients

Comparison of Surface Conditions and Wear Track Width after Wear Testing

Comparison of Surface Conditions and Wear Track Width after Wear Testing

Surface after Wear Test

Surface after Wear Test

Surface Photo, APMA Measurement

Surface Photo, APMA Measurement

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    1-12-15 Sakuradai, Nishi-ku, Hamamatsu City, Shizuoka, Japan 431-1104

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