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Why did SpaceX switch to "heavy" stainless steel? #starship #spacexstarship #science #technology
Why did SpaceX switch to "heavy" stainless steel, and how did it actually make the rocket lighter?
The Provocation: Steel is 4x denser than carbon fiber. However, carbon fiber loses strength at 200°C, while 300-series stainless steel maintains its integrity up to 800°C.
The Logic: Because the steel "skin" can handle more heat, the ship needs a much thinner, lighter heat shield. Furthermore, at cryogenic temperatures (-160°C), steel’s strength increases by 50%, whereas other materials become brittle. By using steel, SpaceX traded "light material" for "light systems," a massive net gain for reusability.
Video credit: SpaceX
Narration: The Booster Bay
#spacex #spacexstarship #starship
Видео Why did SpaceX switch to "heavy" stainless steel? #starship #spacexstarship #science #technology канала Aerospace Now
The Provocation: Steel is 4x denser than carbon fiber. However, carbon fiber loses strength at 200°C, while 300-series stainless steel maintains its integrity up to 800°C.
The Logic: Because the steel "skin" can handle more heat, the ship needs a much thinner, lighter heat shield. Furthermore, at cryogenic temperatures (-160°C), steel’s strength increases by 50%, whereas other materials become brittle. By using steel, SpaceX traded "light material" for "light systems," a massive net gain for reusability.
Video credit: SpaceX
Narration: The Booster Bay
#spacex #spacexstarship #starship
Видео Why did SpaceX switch to "heavy" stainless steel? #starship #spacexstarship #science #technology канала Aerospace Now
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7 марта 2026 г. 19:28:11
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