.

exp_legacy/module/modules/addons/inventory-clear.lua

@@ -11,7 +11,7 @@ local function clear_items(event)
     ExpUtil.transfer_inventory_to_surface{
         inventory = inventory,
         surface = game.surfaces[1],
-        name = "iron-chest",
+        name = "steel-chest",
         allow_creation = true,
     }
 end

exp_legacy/module/modules/addons/nukeprotect.lua

@@ -29,7 +29,7 @@ local function check_items(player, type)
         items = items,
         surface = game.planets.nauvis.surface,
         allow_creation = true,
-        name = "iron-chest",
+        name = "steel-chest",
     }
 end