<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">iron alloy</topic></authority><related type="narrower"><topic>cast iron</topic></related><related type="narrower"><topic>wrought iron</topic></related><related type="narrower"><topic>steel</topic></related><related type="narrower"><topic>Invar (TM)</topic></related><related type="broader"><topic>iron and iron alloy</topic></related><variant type="other"><topic>alloy, ferrous</topic></variant><variant type="other"><topic>alloy, iron</topic></variant><variant type="other"><topic>ferrous alloy</topic></variant> <note xml:lang="en"><![CDATA[ Alloy in which iron is the principle element. ]]></note></mads>