steel-plated vs armor-clad

steel-plated and armor-clad both are adjectives.

Word	Noun	Adjective	Verb	Adverb
steel-plated	No	Yes	No	No
armor-clad	No	Yes	No	No

As adjectives, steel-plated and armor-clad are synonyms defined as:

Other synonyms of steel-plated include armor-plated, armour-clad, armour-plated.

steel-plated (adjective)	armor-clad (adjective)
covered with heavy steel	covered with heavy steel