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Can be riveted, bolted, welded, brazed, and soldered.
Insulate from contact with other metals to prevent galvanic action (occurs between 2 dissimilar metals when enough moisture is present for electric current to flow. Will corrode one metal while plating the other)
Term applied to certain aluminum products and refers to the protective covering (cladding) applied, primarily for corrosion resistance, to thin sheets of alloy whose corrosion resistance has been decreased by the constituents added to give strength and other desirable characteristics.
Are pre-fabricated units which are generally manufactured on modular and non-modular window-width dimensions for the exterior of buildings and generally in 2’, 3’, and 4’ widths for interior partitions and dividers.
Consists of vapor barriers, condensation drains and lead-offs, insulation and an interior finish
SANDWICH PANEL – comprises a construction called skin construction. A cellular core of aluminum or other material has a skin of aluminum applied and bonded to both sides, thereby forming a unified whole in which all the components work as one.
Heavy, soft, malleable, bluish gray metallic element used for flashing, sound isolation and radiation shielding. Although lead is the heaviest metal, its pliability makes it desirable for application over uneven surfaces. Lead dust and vapors are toxic
Unalloyed steel in which the residual elements such as carbon, manganese, phosphorous, sulfur and silicon are controlled. Any increase in carbon content increases the strength and hardness of the steel but reduces its ductility and weldability
Carbon steel to which various elements such as chromium, cobalt, copper, manganese, molybdenum, nickel, tungsten, or vanadium have been added in a sufficient amount to obtain particular physical or chemical properties.
STAINLESS STEEL – contains a minimum of 12% chromium, sometimes with nickel, manganese, or molybdenum so as to be highly resistant to corrosion
HIGH-STRENGTH LOW-ALLOY STEEL – low-carbon steel containing less than 2% alloys in a chemical composition specifically developed for increase strength, ductility and resistance to corrosion. ASTM A572 is the most common strength with a yield point of 50,000 psi.
WEATHERING STEEL – high-strength, low-alloy steel that forms an oxide coating when exposed to rain or moisture in the atmosphere. This coating adheres firmly to the base metal and protects it from further corrosion. This should be detailed to prevent the small amount of oxide carried off by rainwater from staining adjoining materials.
TUNGSTEN STEEL - alloy steel containing 10% to 20% tungsten for increased hardness and heat retention at high temperatures.
CAST IRON – hard, brittle, non malleable iron-based alloy containing 2% to 4.5% carbon and 0.5% to 3% silicon cast in a sand mold and machined to make many building products such as piping, grating and ornamental work.
MALLEABLE CAST IRON – annealed by transforming the carbon content into graphite or removing it completely.
WROUGHT IRON – tough, malleable, relatively soft iron that is readily forged and welded,0.2% carbon and a small amount of slag
Consists of a grid of steel wires or bars welded together at all points of intersection. Typically used to provide temperature reinforcement for slabs but the heavier gauges can also be used to reinforce concrete walls. Size of grid in inches followed by wire gauge