Answer: The property that makes steel a good choice for sword making is tensile strength.
Step-by-step explanation:
Tensile strength of an metal is defined as resistance offered by a metal to oppose change in its shape under tension.
Steel has higher tensile strength which makes it best choice to make swords.
Ductility is the ability of a metal to draw into thin wires.
Conductivity is the ability to allow electric current to pass through them.