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Knife Steel Composition Graph Builder Help

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General use:

Graph
- Steel Analysis graph displays chemical composition of one or more(up to twelve) alloys in the form of the bar graph. Vertical axis indicates the percentage of the particular element in the alloy and the horizontal axis indicates the element name in the alloy. For the case when multiple alloys are displayed, the bars are displayed in the groups corresponding particular elements from each alloy, therefore making comparison much easier. For the precise results the table with full data for each alloy is displayed below the graph image.
By default the graph is in skip zeros mode, which means, it displays only the elements that are non zero. For a single steel mode it will display all of the elements having non zero value and for the comparison mode, it will display element group if at least one value in it is non zero. So, if all steels in the selection have 0 for certain element, it will not be shown in the graph. To change the list of the elements displayed in the graph click the More button. That will display the list of the elements and select/deselect elements there. To rebuild the graph with the new settings and data click the Build button.

Bars
- Bar height is proportional to the element percentage value in the alloy. Some alloy specifications allow for the variance in of the content, e.g. C from 0.6% to 0.8%. In those cases bar base is darker color from 0 to lower bound of the interval, in as in the example, that would be 0.6%, and the interval itself is represented with lighter color. That is from 0.6% to 0.8%.

Legend
- Displays color code and the alloy corresponding to it. For the case when there is not enough space to display all the selected alloys, omitted alloy names and their color code rectangles are grayed out.

Graph Controls

Build
- Click this button to build the new graph with new data.

Analyze Steels:
- This edit control shows the list of the alloys displayed in the graph separated by commas. The control has autosuggest feature. In other words, as you start typing in the control is will display the list of the possible matches to your input so far from the database contents. Since the list is comma separated, the autosuggest function uses the word after the last comma to match against the database records. Search string is matched against name and A.k.a. columns. E.g. typing SR- will show 52100 and S7 steels, because their alternate names are SR-101 and SR-77 respectively, selecting them will copy 52100 and S7 into the alloy selection box. Matches are displayed in the selectable list below the control. Display record consists of the contents of the name column, and A.k.a. column contents are displayed after the alloy name enclosed in parentheses. I.e. If you type the letter M, this would match all the alloys starting with the letter M in name column, and also all the alloys that have one of the alternate names in A.k.a column starting with M. When you select the entry in the autosuggest list, only its name portion is copied into the control, and if there already were other alloys, the new entry is appended to the existing alloy list with a leading comma.
Note - Due to ambiguity of the alloy naming in various sources dash(-) and space( ) are treated in a specific way, namely, each name keyword is analyzed for the presence of those two characters and if they are present, both will be removed and silent extra keyword will be added. I.e. AUS-8 will be searched as AUS-8 or AUS8.

More
- Click the more button to display the list of the available chemical elements that can be displayed in the graph. To include the element in the graph check the corresponding checkbox, to exclude the element from the graph, uncheck the box. When you open the elements window currently active elements in the graph are selected. This dialog can also be displayed by clicking ALT+C on the keyboard, if your browser shortcuts permit it.

Set Graph Dimensions
- You can choose the generated graph image size. Default is 800x600px. Graph size can also be controlled with query parameter sz, where sz value is the number of the graph size. Sizes are numbered as following: 1 - 640x4890, 2 - 800x600, 3 - 1024x768, 4 - 1200x800, 5 - 1600x1000, 6 - 1920x1000. Choose the dimension from the dropdown list, or alternatively specify sz value, e.g. &sz=4 will set graph size to 1200x800 size. Incorrect or missing sz parameter sets the graph to its default size.

Ranges As Averages
- When checked causes the graph to render range intervals as average values. E.g if C content for a given alloy is 0.80%-1.00%, the graph will display the average of the range, i.e. - 0.90%.

Show Composition As:
- Lets the user select how to represent element distribution in the alloys. The three possible values are:
Mass % - this is the default and the most common, shows element mass percentage in the alloy;
Atom Count - Number of the element atoms in 1000 atoms of the alloy, calculated from element Molar mass and mass;
Molar Mass % - Mass % is converted into molar mass, and percentage is shown relative to the calculated alloy molar mass, which is the sum of the alloy composition element molar masses.

Select All
- Click this button to select all the elements to be displayed in the graph.
Warning - this will reduce the number of the alloys simultaneously displayed in the graph from 7 to 5.

Clear All
- Click this button to uncheck all the elements.
Warning - Graph needs at least one element to be selected to be built.

Defaults
- Click this button to select the default set of the elements to be displayed in the graph. The default set is: C, Cr, Co, Mn, Mo, Si, W, V.

Last updated - 02/27/15