Steel Fiber
- Polarity
- Vazarin
- Rarity
- Common
- Drain
- 4 → 14
- Fits
- WARFRAME
(Stats)
- +100% Armor
Curated and corroborated — the export and the wiki independently state the same effect.
Drain by rank
- R0 4
- R1 5
- R2 6
- R3 7
- R4 8
- R5 9
- R6 10
- R7 11
- R8 12
- R9 13
- R10 14
A matching polarity halves the drain, rounded up; a mismatched one costs more than no polarity at all.
(Acquisition)
Steel Fiber drops in 42 places. The best odds are 25% at Earth/Cetus (Level 10 - 30 Cetus Bounty), rotation A.
Missions 41
| Where | Rotation | Chance |
|---|---|---|
| Mercury/Apollodorus (Survival) | B | 7.69% |
| Venus/V Prime (Survival) | B | 7.69% |
| Venus/Malva (Survival) | B | 7.69% |
| Venus/Kiliken (Excavation) | B | 7.69% |
| Earth/Everest (Excavation) | B | 7.69% |
| Earth/Tikal (Excavation) | B | 7.69% |
| Mars/Arcadia (Survival) | B | 7.69% |
| Mars/Augustus (Excavation) | B | 7.69% |
| Ceres/Gabii (Survival) | B | 7.69% |
| Phobos/Stickney (Survival) | B | 7.69% |
| Phobos/Wendell (Excavation) | B | 7.69% |
| Phobos/Flimnap (Survival) | B | 7.69% |
| Mars/Wahiba (Survival) | B | 7.14% |
| Jupiter/Elara (Survival) | B | 7.14% |
| Jupiter/Cameria (Survival) | B | 7.14% |
| Saturn/Titan (Survival) | B | 7.14% |
| Saturn/Piscinas (Survival) | B | 7.14% |
| Ceres/Draco (Survival) | B | 7.14% |
| Europa/Lillith (Excavation) | B | 7.14% |
| Europa/Valefor (Excavation) | B | 7.14% |
21 further locations at the same or lower odds are not listed.
Bounties 1
| Where | Rotation | Chance |
|---|---|---|
| Earth/Cetus (Level 10 - 30 Cetus Bounty) | A | 25% |
Chances are per reward roll. Where a mission appears in more than one reward table, the best figure is the one shown.
(Information)
- Introduced
- 0
- Max rank
- 10
- Tradable
- Yes
- Transmutable
- Yes
- Exilus slot
- No
Cannot be equipped with
Umbral Fiber · Flawed Steel Fiber
(Sources)
Polarity, drain, rarity, compatibility and the card art come from the game export (snapshot 19 Sept 2026). Introduction version, tradability, mod sets and the drop tables come from the WARFRAME Wiki , CC BY-SA. Whether an effect is curated is our own judgement, recorded per mod.