> For the complete documentation index, see [llms.txt](https://dante-solutions-inc.gitbook.io/dante-6.3-help-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dante-solutions-inc.gitbook.io/dante-6.3-help-documentation/introduction-2/general/material.md).

# Material

The Material section contains a list of base materials populated from the current material directory. Changes to carbon, nitrogen, carbides, nitrides, initial phase composition, grain-size, and chemistry can then be made to specific needs for steel.

<img src="https://3062023715-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0UQEr9tolIKQwZXdPc9a%2Fuploads%2Fgit-blob-8e51e56a1d3e28b1abf66551c4689b70e868d046%2FMaterial_Composition.png?alt=media" alt="" width="380">

**Material Selection**

* Lists the material name(s) located in the current material database. Material selection sets the inputs to the material’s default values from the current material database

**Total Carbon Content (%)**

* Total carbon weight percent in the base material. Total carbon is carbon available in the matrix plus carbon in carbide form

**Total Nitrogen Content (%)**

* Total nitrogen weight percent in the base material. Total nitrogen is nitrogen available in the matrix plus nitrogen in nitride form

**Alloy Precipitate (vf %)**

* Volume fraction of initial alloy precipitate

**Alloy Precipitate Size (nm)**

* Alloy Carbide size in nanometers, at the start of the process

**Ratio of Carbon in Alloy PPT**

* Ratio of carbon in alloy precipitate form taken directly from specific material from DANTE database

**Carbon in Alloy PPT (%)**

* Amount of carbon in alloy precipitate form by multiplying the **Ratio of Carbon in Alloy PPT** by the **Alloy Precipitate (vf%)**

**Iron Carbide (%)**

* Weight percent of carbon “locked” in iron (primary) carbides. The initial carbon value for the analysis will be total carbon minus carbon in carbides

**Iron Carbide Size (nm)**

* Iron Carbide size in nanometers, at the start of the process

**Initial Nitride A (%)**

* Weight percent of nitrogen “locked” in nitride A. The initial nitrogen value for the analysis will be total nitrogen minus nitrogen in nitrides.

**Initial Nitride B (%)**

* Weight percent of nitrogen “locked” in nitride B. The initial nitrogen value for the analysis will be total nitrogen minus nitrogen in nitrides

**Initial Phase Composition (Austenite bal.) (vol. frac.)**

* The initial volume fraction of each phase with austenite taking up any balance. For 100% austenite enter zero (0) for all values.

**Grain Size**

* Nominal - Grain size provided by the material database
* Modified - User defined values for analysis

**Alloy Composition**

* Nominal - Alloy composition from the material database
* Modified - User defined values for analysis

**Reset to Nominal**

* Resets the user defined values to the nominal composition