Materials Flashcards
What are metallic elements?
Metals such as gold, silver, copper, and aluminum in their pure form are known as metallic elements.
What is an alloy?
An alloy is a metal that contains a combination of two or more metals. Examples include brass (copper and zinc) and bronze (copper and tin).
What are some common forms metals can come in?
Metals can come in individual flat sheets in various widths and lengths, as well as in coil form.
What is expanded metal?
Expanded metal, also known as expanded mesh, is made from solid sheets of metal that are slit and expanded to form diamond-shaped openings of uniform size and thickness.
What are the common types of expanded metal?
The most common expanded metals are mild steel, galvanized steel, and stainless steel.
What are the uses of expanded metal?
Expanded metal is used for security purposes, safety guards for machinery, ceiling tiles, and allows air circulation. It is also used for flooring on catwalks, stair treads, and platforms due to its anti-slip properties.
What is perforated metal?
Perforated metal is made by punching holes in solid sheets. These holes can be round, square, hexagonal, or oblong, and the metal is commonly used in sound attenuation and decorative patterns
What are the common uses of perforated metal?
Perforated metal is used in sheet metal trade for sound attenuation, such as in ductwork lined with acoustic insulation to make air noise less noticeable.
What is hardware cloth?
Hardware cloth, also known as bird screen, is made from woven steel wire and dipped in molten zinc to prevent corrosion. It comes in various mesh sizes and is used to cover openings to prevent pests from entering.
