Home / Metals / Stainless Steel / Type 440 (UNS S44000) Type 440 (UNS S44000) Get A Free Quote Now! Description Description Equivalent Materials to Stainless steel UNS S31603 as a PDF file Download as a PDF file Get A Free Quote Now! Your Name (required) Your Email (required) Subject Your Message Related products Type 303 (UNS S30300/1.4305) Type 316 (UNS S31600/1.4401) Type 304 (UNS S30400/1.4301)