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ALCOT

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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ALCOT

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

  2. 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.

  3. 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

  4. 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

  5. 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

  6. available size range subject to prior negotiation Scope of Manufacturing Field Size Availability

  7. available size range subject to prior negotiation Scope of Manufacturing Field Coating Weight

  8. 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)

  9. Specification Grade and Symbol

  10. Specification Mechanical Properties • Specification

  11. Specification Mechanical Properties

  12. Specification Mechanical Properties • Dongbu Trend

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