Hanger and tie wire must be which of the following?

Hanger and tie wire must be which of the following?

• A. Annealed
• B. Cold-drawn
• C. Hardened
• D. Tempered

Answer: (A)

Wires used as hangers and ties in plaster systems must be annealed to provide the ductility needed for bending and tying without cracking or breaking. Annealing softens the metal, relieves internal stresses, and makes it easier to form loops and wrap around lath and studs without work hardening. If the wire were cold-drawn, hardened, or tempered, it would be too stiff or brittle for the repeated twisting and tightening required during installation, increasing the risk of kinks, breaks, or cracked plaster. Therefore, annealed wire is the appropriate choice.

Wires used as hangers and ties in plaster systems must be annealed to provide the ductility needed for bending and tying without cracking or breaking. Annealing softens the metal, relieves internal stresses, and makes it easier to form loops and wrap around lath and studs without work hardening. If the wire were cold-drawn, hardened, or tempered, it would be too stiff or brittle for the repeated twisting and tightening required during installation, increasing the risk of kinks, breaks, or cracked plaster. Therefore, annealed wire is the appropriate choice.