# Stainless steel - Stage 2 (technology)

internal name `stainless-steel-mk02` · tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/tech/stainless-steel-mk02/

## Cost

1200 units of (1 × [Production science pack](https://factorio.kalzumeus.com/item/production-science-pack.md), 2 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 3 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 6 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 10 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 20 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 30 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 6 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 300 s each.

## Requires (1)

- [Production science pack](https://factorio.kalzumeus.com/tech/production-science-pack.md)

## Leads to (0)

- none

## Unlocks (4 recipes)

### Molten stainless steel alloy mix 1 (`full-molten-stainless-steel-1`)

- 4 s · tier 7
- Ingredients: 100 × [Molten steel](https://factorio.kalzumeus.com/fluid/molten-steel.md), 1 × [Sulfur](https://factorio.kalzumeus.com/item/sulfur.md), 30 × [Molten chromium](https://factorio.kalzumeus.com/fluid/molten-chromium.md)
- Results: 55 × [Molten stainless steel alloy mix 1](https://factorio.kalzumeus.com/fluid/molten-stainless-steel-p1.md)
- Made in: Advanced foundry MK 01, Advanced foundry MK 02, Advanced foundry MK 03, Advanced foundry MK 04
- Unlocked by: [Stainless steel - Stage 2](https://factorio.kalzumeus.com/tech/stainless-steel-mk02.md)

### Molten stainless steel alloy mix 2 (`full-molten-stainless-steel-2`)

- 4 s · tier 7
- Ingredients: 50 × [Molten stainless steel alloy mix 1](https://factorio.kalzumeus.com/fluid/molten-stainless-steel-p1.md), 5 × [Molten copper](https://factorio.kalzumeus.com/fluid/molten-copper.md)
- Results: 60 × [Molten stainless steel alloy mix 2](https://factorio.kalzumeus.com/fluid/molten-stainless-steel-p2.md)
- Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04
- Unlocked by: [Stainless steel - Stage 2](https://factorio.kalzumeus.com/tech/stainless-steel-mk02.md)

### Molten stainless steel alloy mix 3 (`full-molten-stainless-steel-3`)

- 4 s · tier 7
- Ingredients: 50 × [Molten stainless steel alloy mix 2](https://factorio.kalzumeus.com/fluid/molten-stainless-steel-p2.md), 10 × [Molten nickel](https://factorio.kalzumeus.com/fluid/molten-nickel.md), 4 × [Phosphate rock](https://factorio.kalzumeus.com/item/phosphate-rock.md), 1 × [Cobalt extract](https://factorio.kalzumeus.com/item/cobalt-extract.md)
- Results: 70 × [Molten stainless steel alloy mix 3](https://factorio.kalzumeus.com/fluid/molten-stainless-steel-p3.md)
- Made in: Smelter MK 01, Smelter MK 02, Smelter MK 03, Smelter MK 04
- Unlocked by: [Stainless steel - Stage 2](https://factorio.kalzumeus.com/tech/stainless-steel-mk02.md)

### Molten stainless steel (`full-molten-stainless-steel-4`)

- 4 s · tier 7
- Ingredients: 50 × [Molten stainless steel alloy mix 3](https://factorio.kalzumeus.com/fluid/molten-stainless-steel-p3.md), 25 × [Niobium complex](https://factorio.kalzumeus.com/fluid/niobium-complex.md)
- Results: 100 × [Molten stainless steel](https://factorio.kalzumeus.com/fluid/molten-stainless-steel.md)
- Made in: Advanced foundry MK 01, Advanced foundry MK 02, Advanced foundry MK 03, Advanced foundry MK 04
- Unlocked by: [Stainless steel - Stage 2](https://factorio.kalzumeus.com/tech/stainless-steel-mk02.md)