Question

Defective or inadequate weld metal properties include:

a) Low tensile strength, low hardness, all weld metal tensile test.
b) Hardness tests, poor corrosion resistance, all weld metal tensile test.
c) Low tensile strength, low yield strength, incorrect chemical composition.

Answer 1

Defective or inadequate weld metal properties can include low tensile strength, low hardness, and poor corrosion resistance. It's important to ensure that the weld metal has the desired properties for its intended application, including appropriate tensile strength, hardness, and corrosion resistance.

Step-by-step explanation:

Defective or inadequate weld metal properties can include a low tensile strength, low hardness, and poor corrosion resistance. For example, in an all weld metal tensile test, if the weld metal has low tensile strength and low hardness, it may not be able to withstand stresses and may fail under load. Similarly, if the weld metal has poor corrosion resistance, it may corrode and degrade over time.

It's important to ensure that the weld metal has the desired properties for its intended application. This includes qualities such as appropriate tensile strength, hardness, and corrosion resistance. Incorrect chemical composition can also lead to low tensile strength and low yield strength in the weld metal.