yellow metal vs Muntz metal

yellow metal and Muntz metal both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow metal	Yes	No	No	No
Muntz metal	Yes	No	No	No

As nouns, yellow metal and Muntz metal are synonyms defined as:

yellow metal and Muntz metal: a brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked products

Other synonyms of yellow metal include alpha-beta brass.

yellow metal (noun)	Muntz metal (noun)
a brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked products	a brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked products