METALS II Flashcards
Who designed the Crystal Palace in 1851?
Joseph Paxton
What was the first use of aluminum for structural purposes?
Le Corbusier’s design for the glass curtain walls of the United Nations headquarters in New York
What percentage of steel is eventually recycled?
66%
Water run off from copper roofs is…
Safe and environmentally friendly
Aluminum requires more ______ to produce.
Electricity
Copper and aluminum are inherently _______-resistant
Corrosion
Rivet have been replaced by
Bolts
What is smelting?
Extracting any metal from its ore
List metals in order of galvanic activity
Aluminum zinc iron and steel stainless steel tin lead brass copper bronze gold
All zebras isolate and sublimate soulless secrets, tinkering leaderless before coming back to Grandiosity
What is a metals hardness
Resistance to abrasion
What characterizes a metals ductility?
Ease of drawing
Structural steel has what percent carbon?
1%
To be classified as steel, it has to have less than what percent of carbon?
2%
How do you make stainless steel?
But some chromium and nickel in there
What is the definition of weathering steel?
Contains up to 0.5% copper, which develops a tightly adherent oxide coating. It requires no finish.
What is heat-treated steel?
Steel that is really heated and cooled slowly, or annealed, for improved workability
Brass is an alloy of
Copper and zinc
Characteristics of brass
Corrosion resistant, easily worked
Bronze is an alloy of
Copper and tin
In general, wrought iron is better in what, and cast-iron is better in what?
Tension… Compression
Characteristics of lead
Corrosion resistant, easily worked, impenetrable to radiation, heavy, soft, toxic, low strength
Zinc
Low strength, corrosion resistance, use for roof coverings and flashing him for protecting coatings and steel… I.E.galvanizing
Monel is an alloy of
Nickel and copper
What does sherardizing mean?
Coating with zinc dust
What is anodizing?
An aluminum finish in which you insert the material into an electrolyte and apply an electric current, which results in a wide choice of hues
How do you express how much zinc you coated onto galvanized steel?
In ounces per square-foot of sheet
What are kalamein doors and what are they used for?
Galvanized metal covered would core doors used for high fire resistance
What was the first large-scale tensile structure and who designed it?
A pavilion for the Nizhny Novgorod Fair of 1896 by Ivan Schukov
Cellular steel decking has the additional advantage of…
Providing raceways for electrical lines
Most floor decking is now
Has a metal decking, which has deformed or pattern ribs that bond to the concrete
