Beampipesteel

Add correct composition for steel used in beampipe for mCBM.

Source: Acidur 4301 Werkstoffdatenblatt X5CrNi18-10 1.4301

media.geo

@@ -41,6 +41,15 @@ lead               1  207.1  82.  11.34
 pipeiron           1  55.847  26.  7.87
                    0  1  20.  .001
                    0
+
+// Acording to document from Acidur 4301 Werkstaoffdatenblatt X5CrNi18-10 1.4301
+// Fe C Si Mn P S Cr Ni N        (EN 10088-3)
+// Mass concentrations taken half way between min and max acceptable. 
+
+pipesteel          9 55.845 12.011 28.0855 54.93805 30.973762 32.066 51.9961 58.6934 14.00674 26 6 14 25 15 16 24 28 7 7.9 0.701775 0.00035 0.005 0.01 0.000225 0.00015 0.185 0.0925 0.005
+                   0  1  20.  .001
+                   0
+
 // ---------------------------------------------------------------------------
 
 // -----  Air at 20 degrees C   ----------------------------------------------