WarframeAlchemyLab ES
Fersteel Alloy

Farming plan

Fersteel Alloy

Arsenal: Fersteel Alloy
Confidence

Direct sources

Saturn / Variant Team AnnihilationConclaveRot. A5.53%18.1 expected runs · 41 runs for 90%Saturn / Variant Team AnnihilationConclaveRot. B5.53%18.1 expected runs · 41 runs for 90%

We assume ~2.5 min per relic opening (short fissure). Per-mission timings are labeled by source: derived from game mechanics or community-estimated.

Expected runs = 100/chance · Runs for confidence p = ⌈ln(1−p)/ln(1−chance)⌉ · In a squad of 4 opening the same relic, the chance your part shows among the reveals is 1−(1−chance)⁴.

Step-by-step guide

Everything you need to get it into your arsenal, in order.

No mastery requirement Foundry time: 1min Total credits: 1,000

  1. Gather the resources

    • Ferros ×20 mining: red veins (ore)
    • Plastids ×400 Phobos · Saturn · Uranus · Pluto · Eris
    • Rubedo ×200 Earth · Lua · Phobos · Europa · Sedna · Pluto · Void
    Ingredients
    Plastids: 400 (65%) Rubedo: 200 (32%) Ferros: 20 (3%) 620
    • Plastids 400 · 65%
    • Rubedo 200 · 32%
    • Ferros 20 · 3%

  2. Craft it in the foundry

    Foundry cost: 1,000 credits

    Build time: 1min

    Claim it and equip it. Done, Tenno.

Farming assumes a radshare squad for relics and the planner’s per-mission timings (estimated/derived, labeled on each page). The foundry runs on its own: you can play meanwhile.