The gauge section diameter of Stahl mold and Case-H mold is 0.5 inch. The test bars in the as-cast, T6 and T7 condition were pulled to fracture with a tensile test machine at room temperature at a strain rate of 10-3s-1.
TH quest chain begins in Azshara. Complete all the quests until Krazz gives you Twilight Skies, where you're directed to go to the Southern Rocketway Terminus. The first quests given in Az are finding the samophlange and a few others that pple have noted here; don't leave Azshara thinking the quests are unrelated to TH as many of us have done.
Once you're there walk your way down the stairs and back to the beginning. At the far back right of the map you will find the dungeon. - Zunimassa's Haunt - A3 Core of Arreat: Take the Core WP and make your way up the map. Where the map turns to the right this will be on the far left in the corner.