refine material structure for elongation

src/data/AlMg4.5Mn0.7.json

@@ -1,5 +1,6 @@
 {
-  "Name": "G.AL® C250 Aluminium Präzisionsplatte",
+  "Name": "G.AL® C250 Medium Strength Precision Milled Plate",
+  "Name_de": "G.AL® C250 Mittelfeste Präzisionsplatte",
   "Alloy": {
     "Standard": "EN AW 5083",
     "Type": "non heat-treatable"
@@ -17,7 +18,9 @@
     "E": [70, "GPa"],
     "R_p02": ["110-130", "MPa"],
     "R_m": ["230-290", "MPa"],
-    "Elongation": ["10-15", "%"],
+    "Elongation": {
+      "A_5": ["10-15", "%"]
+    },
     "Hardness": {
       "HBW": ["68-75", "2.5/62.5"]
     }

src/data/INFO.json

@@ -32,9 +32,15 @@
     "T": "Reference temperature",
     "rho": "Density",
     "E": "Young modulus, module of elasticity",
-    "R_p02": "Yield strength R_e, R_{p0.2}",
+    "R_p": "Yield strength R_p (R_e), R_{p0.2}",
+    "R_p02": "Yield strength R_p (R_e), R_{p0.2}",
     "R_m": "Ultimate tensile strength R_m",
-    "Elongation": "A_5",
+    "Elongation": {
+      "A": "permanent elongation of length L_0, expressed in per cent of length L_0",
+      "A_0": "permanent elongation for proportional specimens with length L_0 equal to 100 mm  (used for diameter lower than 4 mm)",
+      "A_4": "permanent elongation for proportional specimens with length L_0 equal to 4 times diameter",
+      "A_5": "permanent elongation for proportional specimens with length L_0 equal to 5 times diameter"
+    },
     "Hardness": {
       "HBW": ""
     }
@@ -105,7 +111,9 @@
     "E": [70, "GPa"],
     "R_p02": ["110-130", "MPa"],
     "R_m": ["230-290", "MPa"],
-    "Elongation": ["10-15", "%"],
+    "Elongation": {
+      "A_5": ["10-15", "%"]
+    },
     "Hardness": {
       "HBW": ["68-75", "2.5/62.5"]
     }