steel industry vs industry

steel industry and industry both are nouns.

Word	Noun	Adjective	Verb	Adverb
steel industry	Yes	No	No	No
industry	Yes	No	No	No

As nouns, industry is a hypernym of steel industry; that is, industry is a word with a broader meaning than steel industry:

steel industry: the industry that makes steel and steel products
industry: the people or companies engaged in a particular kind of commercial enterprise

steel industry (noun)	industry (noun)
the industry that makes steel and steel products	the organized action of making of goods and services for sale
	persevering determination to perform a task
	the people or companies engaged in a particular kind of commercial enterprise