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ALCOT - PowerPoint PPT Presentation


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ALCOT. ALCOT is a Dongbu Steel brand name for hot-dip aluminium coated steel sheets and coils. Application. 1. Automobiles : mufflers, exhaust pipes, fuel tanks, etc. 2. Combustion chambers, heat exchangers, dryers, air conditioners, etc.

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Presentation Transcript
slide2

ALCOT

  • ALCOT is a Dongbu Steel brand name for
  • hot-dip aluminium coated steel sheets and coils.
slide3

Application

1. Automobiles : mufflers, exhaust pipes, fuel tanks, etc.

2. Combustion chambers, heat exchangers, dryers,

air conditioners, etc.

3. Home Appliances : boilers, gas ovens, toasters,

rice cookers, chimneys, grills, heaters, gas stoves,

a picture tube bands, microwave ovens,

rotisseries, etc.

4. Building Industries : decks, walls, roofs, etc.

slide5

Characteristics

Heat Resistance

  • Test condition
  • - Heating : 1.5hr
  • - Maintaining temperature : 5hr
  • - Cooling : 17hr
  • Judgement : Visual inspection after 2 cycles test.
  • Result

○ : No change △ : Luster down × : Tums blackish

slide6

Characteristics

Heat Resistance

  • Heat resistance mechanism for ALCOT

Heating

Heating

Before heating

Al

Al

High temperature

oxide film

Alloy layer

Alloy layer

Alloy layer

Fe

Fe

Fe

slide7

Characteristics

Heat Reflectivity

(%)

Corrosion Resistance

  • Salt spray test : 5% Nacl 35℃
  • Hours to red rusting of 1㎛ of
  • coating thickness
  • - ALCOT : 100hrs
  • - GALVALUME : 70hrs
  • - GI : 20hrs
slide8

available size range

subject to prior negotiation

Scope of Manufacturing Field

Size Availability

slide9

available size range

subject to prior negotiation

Scope of Manufacturing Field

Coating Weight

slide10

Scope of Manufacturing Field

Post-treament

  • Chromating
  • - Average : 11.5mg/m2(one side)
  • - Range : 6.8-18.9mg/m2(one side)
  • Oiling
  • - Slightly : 500-800mg/m2(one side)
  • - Normal : 1,000-1,400mg/m2(one side)
  • - Heavy : 1,400-2,000mg/m2(one side)
slide11

Specification

Grade and Symbol

slide12

Specification

Mechanical Properties

  • Specification
slide13

Specification

Mechanical Properties

slide14

Specification

Mechanical Properties

  • Dongbu Trend
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