Chapter Z: Z Zr

Z

z

(1) Symbol for compression factor; (2) symbol for a rectangular or cylindrical coordinate.

Z-alloy

Alloys containing 93% aluminum, 6.5% nickel, 0.5% titanium. A bearing metal.

Zamak-3

A proprietary trade name for a die-casting zinc alloy containing 95.96% zinc, 4% aluminum, and 0.04% magnesium.

Zamak-5

A proprietary trade name for a die- and sand-casting zinc alloy containing 95.96% zinc, 4% aluminum, 1% copper, and 0.04% magnesium.

zelco

An alloy containing 83% zinc, 15% aluminum, and 2% copper, used as a solder for aluminum and its alloys.

zero

The complete absence of a particular quantity. By convention zero (or null) is considered a natural number.

zero-defect

A term used to describe improvements in the manufacturing process or operation whose goal is to produce products with no defects.

zeta (Z or ?)

The sixth letter of the Greek alphabet.

Zilloy -15

A proprietary trade name for an alloy containing 98.99% zinc and 1% copper, and 0.010% magnesium, used for structural material.

Zilloy -40

A proprietary trade name for an alloy containing 99% zinc and 1% copper.

zimalloy

An alloy containing cobalt and chromium.

zinc

CAS number: 7440-66-6. Used as an alloying element in brass, etc. It is brittle at ordinary temperatures. Between 212-300 F/100-149 C it is ductile and malleable, and becomes brittle again at about 410 F/210 C. Cast zinc's tensile strength is about 5,000-6,000 1b/in ². Used for as an alloying element in brass, bronze, and die-casting alloys, galvanizing and hot-dipping iron and other metals, electroplating, metal spraying, automotive...