r/materials↗
Materials Science and Engineering
Reddit for Materials Science and Engineering topics
32k subscribers163 posts / mo in Sep 2026 (incl. ~1% by known bots)128 authors / mosince 2008
r/materials has 32k members (+24% over the last 12 months). It gets about 163 posts a month from 128 people. Top topics: Moore's Law Transistors, Material Innovations and Ceramics Classes & Projects.
When to post on r/materials
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How r/materials has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/materials
Top topics
Share of the subreddit's posts
- Moore's Law Transistors0.9%
- Material Innovations0.8%
- Ceramics Classes & Projects0.4%
- Graphene Research Updates0.4%
- 3D Printing Innovations0.3%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Nature
- ScienceDaily
- Doi
- ScienceDirect
- Massachusetts Institute of Technology
Everything else about r/materials
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research