Brushed Aluminum Door Signs

Brushed Aluminum Door Signs

Brushed or dull polished metal is metal with a unidirectional satin finish. A brushed finish is susceptible to damage. Brushed finishes also typically have a detrimental effect on corrosionresistance. In particular the brushed texture limits the ability of fluid to bead on the material surface....
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 Brushed or dull  polished metal is metal with  a unidirectional satin finish.

A brushed finish is susceptible to  damage. Brushed finishes also typically have a detrimental effect on corrosionresistance.  In particular the brushed texture limits the ability of fluid to bead on  the material surface. In the case of stainless steel the grooves of the finish  can accumulate chloride ions which break down the chromium oxidepassivation layer,  enabling rusting to occur.

Brushing gives metal a distinctive  look, as it retains some but not all of its metallic lustre and is given a pattern of very fine  lines parallel to the brushing direction. For this reason, it is commonly used  for signs hanging at the door both good for long time use and visual beauty.

 

Our signs normally use  5052 H38 for US and Australia market

  • 5052 Temper H38 Chemical Composition Limits (%)

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Others

Total

AL
     Min.

0.25

0.4

0.10

0.10

2.2-2.8

0.15-0.35

 -

0.10

 0.05

0.15

 Remainder

Magnesium gives this alloy its  enhanced corrosion resistance, work ability, strength, and weld ability.  Typical uses include aircraft fuel tanks, electronic mounting plates and  panels, fan blades, refrigeration liners, storm shutters, and utensils.

  • Mechanical Property  Limits

Alloy
      Temper

Specified
     thickness

Tensile strength

Elongation
     in 2 inches %

Ultimate

Yield

 

inches

min

max

min

max

Yield

5052
     H38

0.006-0.007
     0.008-0.031
     0.032-0.128

39.0
     39.0
     39.0

-
     -
     -

32.0
     32.0
     32.0

-
     -
     -

2
     3
     4

 

Other  aluminum alloy also could be used if required.
 

 

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