Heavy Explosive Materials

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Versioning

This article is timeless and should be accurate for any version of the game.


Resource used for producing heavy explosive weapons.
In-game description

Heavy Explosive Materials (also known as HEmats) is a mid-to-late game material used in the crafting of the heavier equipment, specifically explosives.

Acquisition

Structure Input(s) Output Time
Refinery 20 x  Sulfur SulfurPlaceholder.png 1 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png 00:01:00


Once refined, HEmats can be retrieved from the Refinery queue with the LMB or as crates using the context menu (press RMB).

Use

Heavy Explosive Materials is the main material to craft the heaviest ordnances (like shells). These can be used at a Factory, Mass Production Factory, or Ammunition Factory.

Item Production

Structure Input(s) Output Time
Ammunition Factory (Large Shell Factory) 2 x  Construction Materials ConstructionMaterialsIcon.png
2 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  75mm BattleTank Ammo.png 00:01:00
Ammunition Factory (Large Shell Factory) 2 x  Processed Construction Materials ProcessedConstructionMaterialsIcon.png
4 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
6 MW of power ProductionPowerIcon.png
1 x  Moray Torpedo TorpedoIcon.png 00:04:00
Ammunition Factory (Large Shell Factory) 2 x  Construction Materials ConstructionMaterialsIcon.png
2 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  Model-7 “Evie” DepthChargeIcon.png 00:00:25
Ammunition Factory 1 x  Construction Materials ConstructionMaterialsIcon.png
2 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  E680-S Rudder Lock SeaMineIcon.png 00:01:30
Ammunition Factory (Rocket Battery Workshop) 3 x  Flame Ammo FlameAmmoIcon.png
2 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
5 MW of power ProductionPowerIcon.png
1 x  Unstable Substances UnstableSubstancesIcon.png 00:30:00
Ammunition Factory 1 x  Construction Materials ConstructionMaterialsIcon.png
1 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  Flame Ammo FlameAmmoIcon.png 00:00:25
Ammunition Factory (Large Shell Factory) 2 x  Construction Materials ConstructionMaterialsIcon.png
2 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  94.5mm 945mmIcon.png 00:01:00
Ammunition Factory (Rocket Battery Workshop) 2 x  Construction Materials ConstructionMaterialsIcon.png
1 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  4C-Fire Rocket 4C-Fire Rocket Icon.png 00:00:25
Ammunition Factory (Rocket Battery Workshop) 2 x  Construction Materials ConstructionMaterialsIcon.png
1 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  3C-High Explosive Rocket 3C-High Explosive Rocket Icon.png 00:00:25
Ammunition Factory (Large Shell Factory) 4 x  Construction Materials ConstructionMaterialsIcon.png
6 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
6 MW of power ProductionPowerIcon.png
1 x  300mm LRArtilleryAmmoItemIcon.png 00:02:00
Ammunition Factory 5 x  Construction Materials ConstructionMaterialsIcon.png
6 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  250mm 250mm.png 00:00:30
Ammunition Factory (Large Shell Factory) 3 x  Construction Materials ConstructionMaterialsIcon.png
2 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
4 MW of power ProductionPowerIcon.png
1 x  150mm 150mm.png 00:00:40
Factory (Heavy Ammunition) 120 x  Basic Materials Basic Materials.png
10 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 5 x  150mm 150mm.png 00:01:05
Factory (Utility) 75 x  Basic Materials Basic Materials.png
10 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 5 x  Havoc Charge ExplosiveTripodIcon.png 00:01:00
Factory (Utility) 75 x  Basic Materials Basic Materials.png
5 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 5 x  Havoc Charge Detonator SatchelChargeTIcon.png 00:01:00
Factory (Utility) 160 x  Basic Materials Basic Materials.png
5 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 10 x  “Molten Wind” v.II Ammo MoltenWindAmmoIcon.png 00:01:40
Factory (Utility) 135 x  Basic Materials Basic Materials.png
5 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 10 x  Willow's Bane Ammo WillowsBaneAmmoAmmoIcon.png 00:01:40
Factory (Heavy Ammunition) 120 x  Basic Materials Basic Materials.png
25 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 5 x  250mm 250mm.png 00:02:30
Mass Production Factory (Heavy Ammunition) 120 x  Basic Materials Basic Materials.png
25 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 5 x  250mm 250mm.png 00:25:00
Mass Production Factory (Heavy Ammunition) 120 x  Basic Materials Basic Materials.png
10 x  Heavy Explosive Materials HeavyExplosiveMaterialIcon.png
Crate of 5 x  150mm 150mm.png 00:10:50


Storage

Heavy Explosive Materials stack up to 100 in inventory slots.

They can be packed into crates of 20 units or their crate unpacked with the right click context menu while interfacing a Seaport, Storage Depot, or Shipping Container.

Crates of Heavy Explosive Materials can be stored in the stockpiles of Storage Depot and Seaport, up to 1000 in public stockpiles and up to 300 in Reserve Stockpiles. Only crates retrieved directly from your Refinery queue can be stored in a Reserve Stockpile.

Heavy Explosive Materials cannot be spent while in crate form.

Tactics

  • Due to its slow refining speed, it is important to always think ahead and refine sulfur into hemats before you need them as you simply cannot wait hours in front of the refinery for hemats to finish refining
  • Similar to Explosive Materials, Heavy Explosive Materials have no direct usage on the frontlines, and should never be transport there
    • They can be used in an Ammunition Factory, however the placement of these depends on how active a frontline is an how vulnerable it is to enemy attacks
  • Due to the small amount of HEmat per crate, it is often more efficient to transport HEmats uncrated where they can form stacks of 100 per slot, as long as you want to spend them on arrival and not store them in a private stockpile. A truck can carry 1500 HEmats when a shipping container can only carry 1200 (20x60).