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Necramech Steel Fiber
Warframe · Mod

Necramech Steel Fiber

Necramech Armor mod

Released Aug 25, 2020

Necramech Steel Fiber increases a Necramech’s listed Armor bonus, reaching +100% at rank 5. Consider it when allocating a standard Necramech mod slot to Armor; its effect is distinct from Health bonuses and conditional damage reduction.

TypeNecramechPolarityvazarinMax rank5Base drain6VariantStandardRarityUncommon
Necramech Steel Fiber GUIDE

Understand Necramech Steel Fiber

Useful when…

  • Add the listed Armor bonus to a Necramech loadout.
  • Choose a partial rank if the remaining fusion cost or mod capacity matters more than the next listed increase.

Effect and fit

This standard Necramech mod has Vazarin polarity, base drain 6, and maximum rank 5. It lists +17% Armor at rank 0, +67% at rank 3, and +100% at rank 5. These values describe the Armor bonus, not a stated amount of damage prevented in a particular encounter.

wiki.warframe.com ↗

Rank investment

Fusion costs rise at higher ranks. The listed examples are 20 Endo and 966 Credits for 0→1, 80 Endo and 3,864 Credits for 2→3, and 320 Endo and 15,456 Credits for 4→5. These are individual step costs. The rank-3 and rank-5 listed bonuses provide reference points for deciding whether further fusion fits your capacity and resource priorities.

wiki.warframe.com ↗

Other defensive effects

Necramech Aviator lists 40% reduced damage while airborne, so its stated condition differs from Steel Fiber’s Armor bonus. Necramech Augur lists conversion of 240% of energy spent on abilities to Shields, another separate defensive effect. These candidates do not directly replace an Armor bonus; their relevance depends on the effect or condition being sought.

Acquisition

Listed sources include Necramech (Tier 1) and Rotation A rewards in specified Deimos Isolation Vault and Arcana Isolation Vault activities. The supplied entries give different chances for several listed reward rows; they do not establish one universal chance for acquiring the mod.

Limitations and tradeoffs

  • Uses a standard Necramech mod slot and has base drain 6.
  • Higher-rank fusion steps require increasing Endo and Credits.

Common mistakes to avoid

  • Confusing an Armor bonus with a Health bonus.
  • Assuming Aviator’s damage reduction applies when the Necramech is not airborne.
  • Treating a listed fusion step cost as the total cost to reach that rank.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0+17% Armor600
1+33% Armor720966
2+50% Armor8602,898
3+67% Armor91406,762
4+83% Armor1030014,490
5+100% Armor1162029,946

These are listed mod effects and fusion costs, not final build damage. Matching and mismatched polarities change capacity. Totals assume starting at rank 0.

References and version

Game data version: Pinned public export

Necramech Steel Fiber — WARFRAME Wiki ↗wiki.warframe.com ↗
Technical source data for verification

These machine-readable game records support the calculations and factual checks. The wiki references above are intended for reading.

Raw game data (JSON) ↗wiki.warframe.com ↗Warframe Public Export ↗

Original data record ↗

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