# Alloy smelting - Stage 3 (technology) internal name `alloys-mk03` · tier 5 (Chemical science pack, [tier 5](https://factorio.kalzumeus.com/tier/5.md)) HTML page: https://factorio.kalzumeus.com/tech/alloys-mk03/ ## Cost 900 units of (1 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 2 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 3 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 6 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 10 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 120 s each. ## Requires (5) - [Chromium processing - Stage 3](https://factorio.kalzumeus.com/tech/chromium-mk03.md) - [Cobalt processing - Stage 2](https://factorio.kalzumeus.com/tech/cobalt-mk02.md) - [Hydrocarbon cracking and reforming](https://factorio.kalzumeus.com/tech/fuel-production.md) - [Nickel processing - Stage 2](https://factorio.kalzumeus.com/tech/nickel-mk02.md) - [Tin processing - Stage 2](https://factorio.kalzumeus.com/tech/tin-mk02.md) ## Leads to (5) - [Big Mines](https://factorio.kalzumeus.com/tech/big-mines.md) - [Dhilmos - Stage 1](https://factorio.kalzumeus.com/tech/dhilmos.md) - [Dingrits - Stage 1](https://factorio.kalzumeus.com/tech/dingrits.md) - [Nenbit matrix](https://factorio.kalzumeus.com/tech/nenbit-matrix.md) - [Water animals - Stage 2](https://factorio.kalzumeus.com/tech/water-animals-mk02.md) ## Unlocks (8 recipes) ### Silver zinc alloy (`agzn-alloy`) - 5 s · tier 5 - Ingredients: 10 × [Zinc plate](https://factorio.kalzumeus.com/item/zinc-plate.md), 20 × [Silver plate](https://factorio.kalzumeus.com/item/silver-plate.md), 200 × [Refined syngas](https://factorio.kalzumeus.com/fluid/refsyngas.md) - Results: 2 × [Silver zinc alloy](https://factorio.kalzumeus.com/item/agzn-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Cobalt chromium alloy (`crco-alloy`) - 6 s · tier 5 - Ingredients: 5 × [Chromium](https://factorio.kalzumeus.com/item/chromium.md), 1 × [Fuel rod MK 01](https://factorio.kalzumeus.com/item/fuelrod-mk01.md), 2 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md), 5 × [Borax](https://factorio.kalzumeus.com/item/borax.md), 200 × [Petroleum gas](https://factorio.kalzumeus.com/fluid/petroleum-gas.md), 2 × [Super crystalline structure](https://factorio.kalzumeus.com/item/cobalt-nx.md) - Results: 1 × [Cobalt chromium alloy](https://factorio.kalzumeus.com/item/crco-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Ferrochrome (`fecr-alloy-2`) - 5 s · tier 5 - Ingredients: 50 × [Molten iron](https://factorio.kalzumeus.com/fluid/molten-iron.md), 10 × [Molten chromium](https://factorio.kalzumeus.com/fluid/molten-chromium.md), 1 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md) - Results: 20 × [Ferrochrome](https://factorio.kalzumeus.com/item/fecr-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Cobalt chromium alloy (`hotair-crco-alloy`) - 6 s · tier 5 - Ingredients: 5 × [Chromium](https://factorio.kalzumeus.com/item/chromium.md), 1 × [Fuel rod MK 01](https://factorio.kalzumeus.com/item/fuelrod-mk01.md), 2 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md), 5 × [Borax](https://factorio.kalzumeus.com/item/borax.md), 200 × [Petroleum gas](https://factorio.kalzumeus.com/fluid/petroleum-gas.md), 2 × [Super crystalline structure](https://factorio.kalzumeus.com/item/cobalt-nx.md), 50 × [Hot air](https://factorio.kalzumeus.com/fluid/hot-air.md) - Results: 2 × [Cobalt chromium alloy](https://factorio.kalzumeus.com/item/crco-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Iron niobium alloy (`nbfe-alloy-2`) - 4 s · tier 5 - Ingredients: 100 × [Molten iron](https://factorio.kalzumeus.com/fluid/molten-iron.md), 40 × [Niobium complex](https://factorio.kalzumeus.com/fluid/niobium-complex.md), 4 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md) - Results: 15 × [Iron niobium alloy](https://factorio.kalzumeus.com/item/nbfe-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Niobium titanium alloy (`nbti-alloy`) - 3 s · tier 5 - Ingredients: 5 × [Niobium plate](https://factorio.kalzumeus.com/item/niobium-plate.md), 10 × [Titanium plate](https://factorio.kalzumeus.com/item/titanium-plate.md), 150 × [Nitrogen](https://factorio.kalzumeus.com/fluid/nitrogen.md) - Results: 2 × [Niobium titanium alloy](https://factorio.kalzumeus.com/item/nbti-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Nichrome (`nichrome-2`) - 4 s · tier 5 - Ingredients: 100 × [Molten nickel](https://factorio.kalzumeus.com/fluid/molten-nickel.md), 80 × [Molten chromium](https://factorio.kalzumeus.com/fluid/molten-chromium.md), 1 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md) - Results: 10 × [Nichrome](https://factorio.kalzumeus.com/item/nichrome.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md) ### Tin chromium alloy (`sncr-alloy-2`) - 4 s · tier 5 - Ingredients: 40 × [Molten tin](https://factorio.kalzumeus.com/fluid/molten-tin.md), 50 × [Molten chromium](https://factorio.kalzumeus.com/fluid/molten-chromium.md), 4 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md) - Results: 12 × [Tin chromium alloy](https://factorio.kalzumeus.com/item/sncr-alloy.md) - Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04 - Unlocked by: [Alloy smelting - Stage 3](https://factorio.kalzumeus.com/tech/alloys-mk03.md)