Sheet Metal Plating

While metal plating, in general, refers to the application of a surface finish to another material with the purpose of producing outputs that are more desirable both in terms of aesthetics (appearance) and chemical qualities, sheet metal plating is one of its types specifically used to coat the surface of a substrate that is formed into thin and flat sheet. The finished products play an important role in the manufacturing industry as almost all manufactured or fabricated products made of metal (or having metal parts) have some type of surface finishing (e.g. computers and other electronic devices).

 

Why plating of sheet metal materials is recommended

 

Sheet metal plating offers a number of advantages, including the following:

  • It increases the sturdiness of the metal sheet
  • It prevents corrosion or material fast deterioration
  • It gives a more attractive appearance for the treated material
  • It serves as one of the fundamental elements used in metalworking (e.g. forming of metal sheets into different shapes for their intended purposes)

 

Materials used in sheet metal plating


  • Chrome - for hard, durable, decorative finish; this is applied on copper over steel
  • Copper - used for undercoating to eliminate buffing, to enable tinning); applied on ferrous and non-ferrous materials
  • Gold - for conductivity, decorative, and corrosion-resistance (but really expensive); usually applied on non-ferrous material
  • Nickel - produces hard, durable, and corrosion-resistant finish; applied on non-ferrous as well as copper over steel materials
  • Tin - preferred for solder-ability and conductivity improvements; can be applied to non-ferrous or over copper flash materials
  • Zinc - for corrosion control; applied on steel materials

 

Standard Sheet Metal Gauges

 

Gauge pertains to the specific thickness of sheet metal (the higher the gauge, the thinner the sheet). The following is a table detailing different gauge references for various metal materials. (*Source: Wikipedia.com)

Gauge

Steel
in (mm)

Galvanized steel
in (mm)

Stainless steel
in (mm)

Aluminium
in (mm)

Zinc
in (mm)

3

0.2391 (6.07)

-

-

-

0.006 (0.15)

4

0.2242 (5.69)

-

-

-

0.008 (0.20)

5

0.2092 (5.31)

-

-

-

0.010 (0.25)

6

0.1943 (4.94)

-

-

0.162 (4.1)

0.012 (0.30)

7

0.1793 (4.55)

-

0.1875 (4.76)

0.1443 (3.67)

0.014 (0.36)

8

0.1644 (4.18)

0.1681 (4.27)

0.1719 (4.37)

0.1285 (3.26)

0.016 (0.41)

9

0.1495 (3.80)

0.1532 (3.89)

0.1563 (3.97)

0.1144 (2.91)

0.018 (0.46)

10

0.1345 (3.42)

0.1382 (3.51)

0.1406 (3.57)

0.1019 (2.59)

0.020 (0.51)

11

0.1196 (3.04)

0.1233 (3.13)

0.1250 (3.18)

0.0907 (2.30)

0.024 (0.61)

12

0.1046 (2.66)

0.1084 (2.75)

0.1094 (2.78)

0.0808 (2.05)

0.028 (0.71)

13

0.0897 (2.28)

0.0934 (2.37)

0.094 (2.4)

0.072 (1.8)

0.032 (0.81)

14

0.0747 (1.90)

0.0785 (1.99)

0.0781 (1.98)

0.0641 (1.63)

0.036 (0.91)

15

0.0673 (1.71)

0.0710 (1.80)

0.07 (1.8)

0.057 (1.4)

0.040 (1.0)

16

0.0598 (1.52)

0.0635 (1.61)

0.0625 (1.59)

0.0508 (1.29)

0.045 (1.1)

17

0.0538 (1.37)

0.0575 (1.46)

0.056 (1.4)

0.045 (1.1)

0.050 (1.3)

18

0.0478 (1.21)

0.0516 (1.31)

0.0500 (1.27)

0.0403 (1.02)

0.055 (1.4)

19

0.0418 (1.06)

0.0456 (1.16)

0.044 (1.1)

0.036 (0.91)

0.060 (1.5)

20

0.0359 (0.91)

0.0396 (1.01)

0.0375 (0.95)

0.0320 (0.81)

0.070 (1.8)

21

0.0329 (0.84)

0.0366 (0.93)

0.034 (0.86)

0.028 (0.71)

0.080 (2.0)

22

0.0299 (0.76)

0.0336 (0.85)

0.031 (0.79)

0.025 (0.64)

0.090 (2.3)

23

0.0269 (0.68)

0.0306 (0.78)

0.028 (0.71)

0.023 (0.58)

0.100 (2.5)

24

0.0239 (0.61)

0.0276 (0.70)

0.025 (0.64)

0.02 (0.51)

0.125 (3.2)

25

0.0209 (0.53)

0.0247 (0.63)

0.022 (0.56)

0.018 (0.46)

-

26

0.0179 (0.45)

0.0217 (0.55)

0.019 (0.48)

0.017 (0.43)

-

27

0.0164 (0.42)

0.0202 (0.51)

0.017 (0.43)

0.014 (0.36)

-

28

0.0149 (0.38)

0.0187 (0.47)

0.016 (0.41)

0.0126 (0.32)

-

29

0.0135 (0.34)

0.0172 (0.44)

0.014 (0.36)

0.0113 (0.29)

-

30

0.0120 (0.30)

0.0157 (0.40)

0.013 (0.33)

0.0100 (0.25)

-

31

0.0105 (0.27)

0.0142 (0.36)

0.011 (0.28)

0.0089 (0.23)

-

32

0.0097 (0.25)

-

-

-

-

33

0.0090 (0.23)

-

-

-

-

34

0.0082 (0.21)

-

-

-

-

35

0.0075 (0.19)

-

-

-

-

36

0.0067 (0.17)

-

-

-

-

37

0.0064 (0.16)

-

-

-

-

38

0.0060 (0.15)

-

-

-

-

 

Computer chassis plating

 

Computer chassis (aka computer casing) plays an important role in the production of computers as a whole as this helps provide necessary protection to the system unit where important components or parts are housed. It is therefore imperative that the material to be used in manufacturing computer chassis is durable – computer chassis plating can be a big help to have this goal realized. Plated computer chassis helps provide the following benefits:

 

  • Improved casing structure that holds all computer parts in proper places
  • Necessary protection for computer components particularly the ones that are sensitive to external environment.
  • Helps keep the air around components properly flowing
  • Improved aesthetics or physical appearance

For more info about metal plating services, please contact us at GMPPlating, Inc.

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