700 Health
The item id for PS Gate Metal in unturned is 59225. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Useable: Barricade
Build: Gate
Size_X: 2
Size_Y: 1
Size_Z: 0.35
Health: 700
Range: 4
Radius: 1.5
Offset: 1.25
Explosion: 36
Blueprints: 1
Blueprint_0_Type: Barricade
Blueprint_0_Supplies: 2
Blueprint_0_Supply_0_ID: 59009
Blueprint_0_Supply_0_Amount: 3
Blueprint_0_Supply_1_ID: 59010
Blueprint_0_Supply_1_Amount: 2
Blueprint_0_Tool: 59003
Blueprint_0_Build: 27
PlacementAudioClip: Sounds/WoodenPlacement.mp3
Salvage_Duration_Multiplier: 0.1