Value-in-Use Model | International Iron Metallics Association

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In co-operation with CIX LLC (whose major contribution is hereby recognised), IIMA has developed a mathematical model which determines the relative value-in-use of Ore-Based Metallics and scrap in the electric arc furnace steelmaking (EAF) process. This model is simple to use and is based on Excel and Virtual Basic. The model: </p><ul> <li>Compares differences in % metallic Fe</li> <li>Considers C content and effect on charge C</li> <li>Considers gangue content and effect on flux requirements to maintain a desired slag basicity – could also consider effect of higher slag volume on Fe yield losses</li> <li>Applies a recovery factor for FeO and will need to consider additional energy required as well as reductant (probably C)</li> <li>Considers fines losses (DRI, HBI, Pig Iron)</li> <li>Considers moisture content and affect on energy requirements</li> <li>Applies value to lack of Cu</li> <li>Future plan: to consider additional lime required to deal with higher S and P</li> </ul><p>The VIU Model totals up all of the costs and benefits for each material and determines the equivalent cost of a ton of steel based on the price of each commodity and the various cost benefits/penalties associated with each scrap type. It can compare equivalent cost head-to-head or calculate the break-even price of one commodity against the other. <strong>As feedstock material costs and compositions are constantly changing, the model should be run at each decision point.</strong> </p><p><em "="">Note (April 2023): it appears that the model is not compatible with the IOS version of Excel, so the Microsoft version of Excel has to be used.</em></p><p>The instruction manual can be downloaded via the link immediately below. <br><a href="/assets/files/Public-Area/VIU-Model/IIMA-VIU-Model-Operating-Manual_V2.1_May2017.pdf">Download Value-in-Use Model instruction manual</a><br> </p><h2>Value-in-Use Model request form</h2><p>Note that the Model requires macros to be enabled in Excel. We draw your attention to the disclaimer in the Model. Please note that completing the form with autofill may result in an error. </p><p> <style> .confirmemail { border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; } </style> <form action="viu-model.html" method="post" class="form"> <input type="hidden" name="nospam:blank" value="" > <div class="row"> <div class="columns small-12 medium-6 large-6"> <label for="name"> Name: <input type="text" name="name" id="name" value="" placeholder="Full name"> </label> </div> <div class="columns small-12 medium-6 large-6"> <label for="email"> Email: <input type="text" name="email" id="email" tabindex="1" value="" > </label> </div> <input class="confirmemail" name="workemail" value="" /> <div class="columns small-12 medium-12 large-12"> <input name="company" value="" type="text" placeholder="Company/Organisation Name" tabindex="2" > <textarea name="country" value="" type="text" rows="1" placeholder="Country of Operation" tabindex="3" ></textarea> <input type="hidden" name="subject" id="subject" value="Value-In-Use Model request" > <label for="text"> Message: <textarea placeholder="Please briefly explain the reasons for your interest in our model - this helps us understand your requirements." rows="5" name="text" tabindex="4" id="text"></textarea> </label> <input type="submit" value="Submit" class="button"> </div> <input type="hidden" name="subject" value="IIMA VIU Form" /> </div> </form> </p> </main> <aside class="small-12 medium-4 large-3 columns"> <div data-sticky-container> <div class="sticky" data-sticky data-anchor="maincontent" data-margin-top="4">  <div> <ul class="menu vertical"> <h3>Resources & Support</h3> <li> <a href="decarbonisation-papers.html">Decarbonisation</a> </li><li> <a href="fact-sheets.html">Fact Sheets</a> </li><li> <a href="logistics-guides.html">Logistics & Technical Guides</a> </li><li> <a href="presentations.html">Presentations</a> </li><li> Value-in-Use Model </li> </ul> </div>    </div> </div> </aside> </div> <section id="footertopper"> <div class="row"> <div class="small-12 medium-6 large-6 columns">   </div> <div class="small-12 medium-6 large-3 columns">   </div> <div class="small-12 medium-12 large-3 columns">  </div> </div> </section>  <footer>  <div class="row hide-for-print"> <div class="columns small-12 medium-6 large-7"> <h4>International Iron Metallics Association</h4> <p>The IIMA is dedicated to those involved in the ore-based metallics value chain - raw material supply, production and transformation, trading and distribution, transportation and logistics, technology and equipment. Its members account for more than 80% of production and international trade in ore-based metallics.<br><br> Ore-based metallics - merchant pig iron (MPI), direct reduced iron (DRI), hot briquetted iron (HBI), granulated pig iron (GPI) - are value-adding feedstock materials for the iron & steel and ferrous casting industries and IIMA has as its principal objective their promotion through product and market support, innovation, education and regulatory support.</p> </div> <div class="columns hide-for-small hide-for-medium large-1">   </div> <div class="columns small-6 medium-3 large-2"> <ul class="menu vertical"><li class="first"><a href="contact-us.html" title="Contact Us" >Contact Us</a></li> <li><a href="news-and-events.html" title="News & Events" >News & Events</a></li> <li><a href="become-a-member.html" title="Join Us" >Join Us</a></li> <li><a href="about-us.html" title="About IIMA" >About IIMA</a></li> <li class="last"><a href="site-search.html" title="Search" >Search</a></li> </ul> </div> <div class="columns small-6 medium-3 large-3"> <ul class="menu vertical"><li class="first"><a href="disclaimer.html" title="Disclaimer" >Disclaimer</a></li> <li><a href="assets/files/Public-Area/Membership/IIMAArticlesofAssociationJuly2021Final.pdf" title="Articles of Association" target="_blank">Articles of Association</a></li> <li><a href="code-of-conduct.html" title="Code of Conduct" >Code of Conduct</a></li> <li><a href="privacy.html" title="Privacy" >Privacy</a></li> <li><a href="acknowledgements.html" title="Acknowledgements" >Acknowledgements</a></li> <li class="last"><a href="sitemap.html" title="Sitemap" >Sitemap</a></li> </ul> </div> </div>  </footer>  <div class="row hide-for-print">  <div class="small-12 medium-9 large-9 columns" id="credits"> <p>© 2021 International Iron Metallics Association | powered by <a target="_blank" href="http://www.bluespark.co.uk" title="blue spark web design sevenoaks kent">blue spark</a>*</p> </div>  <div class="small-12 medium-3 large-3 columns hide-for-print" id="social"> <a href="https://www.linkedin.com/company/21228763" title="linkedin" target="_blank"><i class="fa fa-linkedin"></i></a>  </div> </div>  <script src="dist/bower_components/jquery/dist/jquery.min.js"></script> <script src="dist/bower_components/what-input/dist/what-input.min.js"></script> <script src="dist/bower_components/foundation-sites/dist/js/foundation.min.js"></script> <script src="dist/js/app-min.js"></script> <script src="dist/bower_components/foundation-sites/dist/js/plugins/foundation.dropdown.js"></script>  <script> $('[data-open-details]').click(function (e) { e.preventDefault(); $(this).next().toggleClass('is-active'); $(this).toggleClass('is-active'); }); </script>   <link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.0.3/cookieconsent.min.css" /> <script src="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.0.3/cookieconsent.min.js"></script> <script> window.addEventListener("load", function(){ window.cookieconsent.initialise({ "palette": { "popup": { "background": "#efefef", "text": "#404040" }, "button": { "background": "#669933" } }, "content": { "href": "http://www.metallics.org/privacy.html" } })}); </script> </body> </html>

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Value-in-Use Model | International Iron Metallics Association