To prepare (oneself) for action
A hard metal
A knife sharpener
"From molten metal to the tempered steel of a blade," Eden replied.
He emerged from the thick steel walls into the sunlight.
Steel bars separated us initially, until it was clear she had no desire to harm me.
The doctor's eyes were the color of cold steel, his face stoic, his large form tense.
At the sound of steel on leather, Taran lowered himself into a crouch.