BDCS 3 (metal)

extracting a metral from its ore

• containing substantial proportion of iron
• stainless steel
• galvanized iron

• aluminum
• copper
• zinc

• 1. aluminum
• 2. zinc
• 3. iron and steel
• 4. stainless steel
• 5. tin
• 6. lead
• 7. brass
• 8. copper
• 9. bronze
• 10. gold
• *metals far apart should not be placed in contact

• almost pure iron with a very low carbon content
• used for tension members, such as chains, crane hooks, and anchors

• resmelting pig iron with steel scrap
• relatively high carbon content (2% or more)
• variety of types: white cast iron, gray cast iron, malleable iron, etc.

• -open hearth process
• -basic oxygen process
• -electric furnace process

steel used for structural purposes contain varying amounts of carbon and other elements

• steel containing other elements that are added to provide speical properties
• for example: stainless steel containing chromium and nickel, is strong, hard and corrosion-resistant 

• steel containing up to one half of a 1% copper, which develops a tightly-adherent oxide coating when exposed to the weather
• requires no finish

• common alloy of copper and zinc
• used for precise castings, finsih hardware, plumbing, heating and air-conditioning components and fittings

alloys of copper and time, with small amounts of other metals

• heavy, soft, toxic metal of low strength
• easily worked, corrosion-resistant and relatively impenetrable to radiation
• used in rough hardware items, for roofing and flashing
• lead is rarely used these days for plumbing because of danger to lead poisoning

• relatively low-strength corrosion-resistant metal
• used for roof covering and flashing and for protective coatings on steel, such as galvanizing

• metal finish applied to aliuminum, which begins by inserting the material into an electrolyte
• when an electric current is applied, a coating is formed on the aluminum surface in a wide choice of hues

• most popular method of protecting iron and steel against corrosion
• a coating of zinc is applied by immersing the steel in a bath of molten zinc
• low cost

structural steel, reinforcing bars and mesh for concrete and wire rope

doors, bucks, partitions, panels, windows, mullions, curtain walls, and panel systems that incorporate other materials such as glass, stone, plastic and so on

stairs, railings, fencing, gratings, rough hardware, ladders, and so forth

plaques, letters, finish hardware, railings, screens, grilles, expansion joint covers, etc

base and cap flashing, gutters and leaders, spandrel and through-wall flashing, copings, termite shields, etc.

rough hardware, nuts and bolts, rivets, screws, nails, washers, inserts, hangers, anchors, wire and so forth