# Alloy smelting - Stage 2 (technology)

internal name `alloys-mk02` · tier 2 (Logistic science pack, [tier 2](https://factorio.kalzumeus.com/tier/2.md))
HTML page: https://factorio.kalzumeus.com/tech/alloys-mk02/

## Cost

275 units of (1 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 2 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 3 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 60 s each.

## Requires (4)

- [Aluminium processing - Stage 1](https://factorio.kalzumeus.com/tech/aluminium-mk01.md)
- [Copper processing - Stage 2](https://factorio.kalzumeus.com/tech/copper-mk02.md)
- [Lead processing - Stage 2](https://factorio.kalzumeus.com/tech/lead-mk02.md)
- [Niobium](https://factorio.kalzumeus.com/tech/niobium.md)

## Leads to (3)

- [Fast inserter](https://factorio.kalzumeus.com/tech/fast-inserter.md)
- [Methanol processing](https://factorio.kalzumeus.com/tech/methanol-processing-1.md)
- [Petroleum gas processing - Stage 1](https://factorio.kalzumeus.com/tech/petroleum-gas-mk01.md)

## Unlocks (6 recipes)

### Duralumin (`duralumin-2`)

- 4 s · tier 2
- Ingredients: 100 × [Molten aluminium](https://factorio.kalzumeus.com/fluid/molten-aluminium.md), 100 × [Molten copper](https://factorio.kalzumeus.com/fluid/molten-copper.md), 4 × [Sand casting](https://factorio.kalzumeus.com/item/sand-casting.md)
- Results: 20 × [Duralumin](https://factorio.kalzumeus.com/item/duralumin.md)
- Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04
- Unlocked by: [Alloy smelting - Stage 2](https://factorio.kalzumeus.com/tech/alloys-mk02.md)

### Iron niobium alloy (`nbfe-alloy`)

- 4 s · tier 2
- Ingredients: 15 × [Iron plate](https://factorio.kalzumeus.com/item/iron-plate.md), 4 × [Niobium plate](https://factorio.kalzumeus.com/item/niobium-plate.md)
- Results: 2 × [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 2](https://factorio.kalzumeus.com/tech/alloys-mk02.md)

### Nexelit antimony Alloy (`nxsb-alloy`)

- 15 s · tier 2
- Ingredients: 10 × [Antimony oxide](https://factorio.kalzumeus.com/item/sb-oxide.md), 10 × [Nexelit plate](https://factorio.kalzumeus.com/item/nexelit-plate.md)
- Results: 3 × [Nexelit antimony Alloy](https://factorio.kalzumeus.com/item/nxsb-alloy.md)
- Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04
- Unlocked by: [Alloy smelting - Stage 2](https://factorio.kalzumeus.com/tech/alloys-mk02.md)

### Lead Antimony Alloy (`pbsb-alloy-2`)

- 10 s · tier 2
- Ingredients: 50 × [Molten lead](https://factorio.kalzumeus.com/fluid/molten-lead.md), 4 × [Antimony oxide](https://factorio.kalzumeus.com/item/sb-oxide.md)
- Results: 5 × [Lead Antimony Alloy](https://factorio.kalzumeus.com/item/pbsb-alloy.md)
- Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04
- Unlocked by: [Alloy smelting - Stage 2](https://factorio.kalzumeus.com/tech/alloys-mk02.md)

### Tin chromium alloy (`sncr-alloy`)

- 3 s · tier 2
- Ingredients: 3 × [Chromium](https://factorio.kalzumeus.com/item/chromium.md), 4 × [Tin plate](https://factorio.kalzumeus.com/item/tin-plate.md)
- Results: 2 × [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 2](https://factorio.kalzumeus.com/tech/alloys-mk02.md)

### Titanium tetrachloride (`ticl4`)

- 4 s · tier 2
- Ingredients: 40 × [Chlorine](https://factorio.kalzumeus.com/fluid/chlorine.md), 10 × [Coal dust](https://factorio.kalzumeus.com/item/coal-dust.md), 3 × [Titanium plate](https://factorio.kalzumeus.com/item/titanium-plate.md)
- Results: 4 × [Titanium tetrachloride](https://factorio.kalzumeus.com/item/ticl4.md)
- Made in: High pressure furnace MK 01, High pressure furnace MK 02, High pressure furnace MK 03, High pressure furnace MK 04
- Unlocked by: [Alloy smelting - Stage 2](https://factorio.kalzumeus.com/tech/alloys-mk02.md)