Gold Platings

 
Gold Platings
 

Gold Plating for coating any metallic substrate material

Gold is yellow to orange in color depending on process used; ranges from matte to bright. Excellent corrosion- & tarnish resistance; an excellent electrical conductor. Good solderability at thickness below 20 microinches. 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: 90khn, 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

Specifications(Military, Federal, and ASTM) : MIL-G-45204, type-II, GRADE C & D

Industries Served :

  • Military

  • Automotive

  • Electronic

  • Telecommunications

Capabilities

  • 500 salt spray test

  • steam-age test

  • humidity testing

Coating Thickness

  • x-ray fluorescence

  • betaray backscatter

  • microsectioning

Porosity/Continuity

  • alkaline polysulfife

Quality Assurance

Standard Services & Practices 

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

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

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.