--- title: "Material update" slug: "material-and-rbi" updated: 2026-10-27T23:11:52Z published: 2026-10-27T23:11:52Z canonical: "ims-handbook.cenosco.com/material-and-rbi" --- > ## Documentation Index > Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt > Use this file to discover all available pages before exploring further. # Material and RBI The Component (and Lining) Material play and important role in RBI Analyses. Below the link is explained. ## Component Material The Material must be specified on a Component. Materials are made available from a predefined list in the IMS Settings which should provide sufficient options for all scenarios. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-HX9TT11V.png?sv=2026-02-06&spr=https&st=2026-10-28T11%3A52%3A20Z&se=2026-10-28T12%3A52%3A20Z&sr=c&sp=r&sig=gubo%2FhQv%2BV9nwsp%2BUJo0MZgrfJQEVoFVBZeHrizpfZM%3D) Materials are divided into four distinct types: Stainless Steel, Carbon Steel, Alloys, and Other. Depending on the Component Material type, the CUI Degradation Mechanism type will be selectable. ## CUI selection For example, when one of the Carbon Steel materials is selected, CUI-CS will be available for assignment. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-CTZO3V71.png?sv=2026-02-06&spr=https&st=2026-10-28T11%3A52%3A20Z&se=2026-10-28T12%3A52%3A20Z&sr=c&sp=r&sig=gubo%2FhQv%2BV9nwsp%2BUJo0MZgrfJQEVoFVBZeHrizpfZM%3D) If Stainless Steel is selected, then CUI-SS becomes available for assignment. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-YGKBM0PJ.png?sv=2026-02-06&spr=https&st=2026-10-28T11%3A52%3A20Z&se=2026-10-28T12%3A52%3A20Z&sr=c&sp=r&sig=gubo%2FhQv%2BV9nwsp%2BUJo0MZgrfJQEVoFVBZeHrizpfZM%3D) > [!NOTE] > Take Note > > If the Component Material type is changed after the CUI Degradation Mechanism has already been assigned, it is left to the engineer to review RBI Analyses and make amendments where necessary. ## Material related specs The Material is also populated under Component Specs under *BASE MATL*. Updates to the BASE MATL Spec and the Component Material property are interchangeable and it is expected that these two values will always be in sync. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-2Z3NDEUD.png?sv=2026-02-06&spr=https&st=2026-10-28T11%3A52%3A20Z&se=2026-10-28T12%3A52%3A20Z&sr=c&sp=r&sig=gubo%2FhQv%2BV9nwsp%2BUJo0MZgrfJQEVoFVBZeHrizpfZM%3D) Several more Specs can be used to describe the Component in more detail. These Specs will in return also be shown on the RBI grid, as *Material*, *Weld Overlay Material*, *Lining Material*, *Cladding Material*, and *PWHT*. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-8JSCPGWB.png?sv=2026-02-06&spr=https&st=2026-10-28T11%3A52%3A20Z&se=2026-10-28T12%3A52%3A20Z&sr=c&sp=r&sig=gubo%2FhQv%2BV9nwsp%2BUJo0MZgrfJQEVoFVBZeHrizpfZM%3D) ## Lining Assessment The selected *Lining Material* will also be automatically preselected for the Lining assessment. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-HFV0TPEJ.png?sv=2026-02-06&spr=https&st=2026-10-28T11%3A52%3A20Z&se=2026-10-28T12%3A52%3A20Z&sr=c&sp=r&sig=gubo%2FhQv%2BV9nwsp%2BUJo0MZgrfJQEVoFVBZeHrizpfZM%3D) Corrosion Under Insolation Risk Based Inspection