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Transcript of Metal
86 known metals
Aluminum and Iron are the most commonly found metals on earth
Characteristics: hard, opaque, shiny malleable, fusible, ductile, excellent conductor of heat and/or electricity.
Gold and copper were being used as early as 6000 BC
Bronze Age(around 3000 BC)
Age of Iron(around 1500 BC)
Steel was discovered by combining iron and carbon around 11th century
The first skyscraper built with steel was the Home Insurance Building in Chicago in 1884.
metal is extracted from earth
crushed and grounded in machines to separate rock from metal
smelting: heat ores in furnace to separate impurities
electrolysis: use electric current to separate elements in ore
** Most metals are alloys because pure metals are often too soft and reactive.
Manufacturing & Refining
Types of Finishes
Metal finishing is used to treat the surface by applying a thin layer to enhance durability, conductivity and resistance.
metal mosaic tiles range from $12-30/sqft. (depending on pattern & type)
Aluminum (silvery white)
Copper (reddish brown)
Bronze (metallic brown)
Brass (gold color)
Metals can vary in color by:
humidity accelerates the tarnishing process, thickening the layer to black cupric oxide.
prolonged exposure to moisture; ex. polluting substance in acid rain, turning copper green
3003-H14 mill finish (softer, more formable)
36 x 96 inches $61.70
316-2B mill finish
Dim. 7 ga.
48 x 120 inches $2,462.05
200 mill finish ( fasteners, fittings, hinges)
36 x96 inches $352.64
110 mill finish (flashing, roofing, arts, & crafts)
36x 96 inches $269.64
once made can be used as metal forever
recycled metal is not downgraded it becomes new steel (better quality)
80 % of all metal ever made is still being used
emission footprints of the material, especially those related to carbon, water and air, are minimized
low maintenance cost
new technologies using less energy to better extract metal, reducing environmental impact
Clean with a non-abrasive all-purpose cleaner, using a sponge or cloth. Rinse with a sponge or cloth squeezed from clean water; dry with a clean, soft cloth.
Aluminum Surfaces (Flooring, walls, window frames, tiles, indoor & outdoor furniture, etc.)
Wash the brass with soapy water. Toothpaste can be used as a mild polish. Vinegar mixed with water and a brush can also help to polish engravings.
Wash with a mixture of lemon juice and salt or simply warm water and dish soap. Rinse and dry. You can also wax it periodically to keep it in good condition.
It can be wiped down on a daily basis with a clean cloth. This keeps dust from building up and catches spills. If spill occurs, make sure to wipe it up immediately.
Clean with a damp cloth to remove dirt and dust
If you spot rust, clean with mild soapy water, sand the area, then seal with similarly colored paint
Clean with a stainless steel cleaner or an all-purpose cleaner or cleanser, using a sponge or cloth. Remove any stain using a paste of baking soda and water applied with a sponge or cloth. Rinse with a sponge and dry with a soft, clean cloth. You can also use a glass surface cleaner for fingerprints.
Coefficient of Friction
COF= The weight of the body
The force pushing the object to the surface
Coefficient of Friction
of Metal Materials
It is determined by introducing a material to a gas flame in a horizontal tunnel or “Steiner”. (See picture below)
A combustible material will be rated as Class A, Class B, or Class C based on test results. (Class A is the greatest resistance, followed by B and C) and heat release rate.)
The flame spread rating and heat release rate of materials have been used to characterize combustible materials.
How to Install Stainless Steel Mosaic Tiles
sky scrapers (skeleton)
Elvira Herrera ~ Ying Huang ~ Silvia Zamudio
Flame Spread Index Smoke Developed Index
Class A 0-25 0-450
Class B 26-75 0-450
Class C 76-200 0-450
i.e.: An Aluminum wall tile (finish material) over 3 different base materials:
Flame Spread Index Smoke Index
Plywood base 33 1.7
Fiberboard base 39 3.4
Gypsum board base 6.2 0.0
Uses of Metal in Residential & Commercial Interiors
Metal frames for office glass dividers
Corrugated metal - Office 1
Corrugated metal - Office 2
Aluminum window frames
Kitchen Island and ceiling with corrugated metal
Kitchen Island with corrugated metal
Recycled aluminum wall panel
Stainless Steel kitchen cabinetry
Hospitality corrugated metal ceiling
Stainless steel table
Brass beaded drapery