If referring to a person, it means that they are mean, lack compassion or are selfish. Hence the phrase "cold hearted"
Yes, a metaphor is when you say that an object (noun) is something else. Therefore, arms of steel is a metaphor because a person's arms are not actually made of steel.
In order to help you classify your product, I will need further clarification. Do you mean "cold rolled steel, in coils" or "coils made of steel"?
metaphor
no. It is a simile
Oh, dude, it's like totally a metaphor! I mean, unless you're talking about a popsicle or something, then it's just literal. But if you're using it to describe someone's heart or attitude, then yeah, it's a metaphor. Like, it's not like their heart is actually made of ice... hopefully.
MAYBE
Its a metaphor. He meant that the steel felt as ice.
Connecticut makes cold steel products
Illinois makes cold steel products
Indiana makes cold steel products
A Taste of Cold Steel was created in 1970.
No, not on its own. Metaphor depends on context; how you use it makes it one.