Gold Platings

Gold plating for coating any metallic substrate material

Gold is yellow to orange in color, depending on the process used, and ranges from matte to bright. Excellent corrosion & tarnish resistance; an excellent electrical conductor. Good solderability at thicknesses below 20 microinches. The hardness of hard gold ranges from 130 to 200+ Knoop, at which gold has good contact lubricity.

Specifications (Military, Federal, and ASTM)

Purity of Deposit

  • 99.7% gold minimum (Grades A, B, or C)
  • 99.0% gold minimum (Grades B, C, or D)
  • 99.9% gold minimum (Grade A only)

Deposit Hardness

  • Grade A 90 Knoop hardness (maximum)
  • Grade B 91-129 Knoop hardness
  • Grade C: 130-200 Knoop hardness
  • Grade D 201 or above Knoop hardness
  • Class 00 .000020" minimum thickness
  • Class 0 .000030" minimum thickness
  • Class 1 .000050" minimum thickness
  • Class 2 .000100" minimum thickness
  • Class 3 .000200" minimum thickness
  • Class 4 .000300" minimum thickness
  • Class 5 .000500" minimum thickness
  • Class 6 .000150" minimum thickness

Specifications (Military, Federal, and ASTM):

  • Black Oxide Coating: MIL-C-13924c
  • Chemical Finish: MIL-F-495e
  • Copper: MIL-C-14550b
  • Gold: MIL-G-45204c (A: 90 khn, B: 91-129, C: 130-200, D: 201+)
  • Nickel: QQ-N-290a (Bright, Sulfamate, Black, Strike)
  • Phosphate: light TT-C490c
  • Phosphate: heavy DOD-16232-f
  • Tin: MIL-T-10727c (Type I, Type II)
  • Tin-Lead: MIL-P-81728c (90:10%, 60:40%, 10:90%)
  • Chemical Finish: MIL-495e
  • Chromic Anodize: MIL-A-8625e
  • Dow Process: MIL-M-3171c (No. 1, No. 7, No. 9)
  • Passivate: QQ-P-35c (Type II, Type VI, Type VII, Type VIII)

Capabilities

  • Gold on Bright Nickel - Certified to Mil-t-10727c & Qq-n-290a

    • rack plating
    • barrel plating

  • Gold on Sulfamate Ni - Certified to Mil-t-10727c & Qq-n-290a

    • rack plating
    • barrel plating

  • Gold on Copper - Certified to Mil-t-10727c & Mil-c-14550b

    • rack plating
    • barrel plating

Industries Served :

  • Communication antenna symbol on black background
    Military
  • Microchip icon on black background
    Automotive
  • Pickup truck icon in gold
    Electronic
  • Golden military badge with star and stripes.
    Telecommunications

Specifications (Military, Federal, and Astm): Mil-G-45204, Type Ii, Grade C & D

  • Capabilities

    • 500 salt spray test
    • Steam-age test
    • Humidity testing

  • Coating Thickness

    • X-ray fluorescence
    • Betaray backscatter
    • Microsectioning

  • Porosity/Continuity

    • alkaline polysulfide

Quality Assurance

Standard Services & Practices

MIL-Q-9858a functions and services are provided on request at a fee.

Quality Control maintains all measuring & testing devices on a formal calibration program according to Mil-Std-45662 with certifiable traceability to N.I.S.T.

Customers may request Certificates of Compliance to any published specification or standard; this, at a nominal fee to defray clerical expenses.

Performance and functionality testing will be performed by independent laboratories at the customer's expense.