The noun 'steel' is an uncountable (mass) noun, a word for a substance.
the number of steps of an algorithm will be countable and finite.
D2 tool steel is a steel, tool steel. For cold rolled steel, D2.
stainless steel
Steel-bound means "bounded by steel."
The noun 'steel' is an uncountable (mass) noun, a word for a substance.
The noun 'steel' is an uncountable (mass) noun, a word for a substance.
The noun 'rust' is a non-count noun as a word for a substance produced by corrosion of iron or steel, and a type of leaf disease.
countable
countable
The noun 'hill' is a countable noun. The plural form is 'hills'.
cookies are countable unless you have brain problems
countable
Shark is a countable noun.
Prawn - prawns is the plural - is a countable noun
Duck as an animal is countable, but if you mean the meat it is uncountable.
Countable