I’ve had a number of requests for online materials database and I just tripped over a pretty good list on the Core77 discussion boards. Some have already been mentioned in previous posts, but it’s probably good to build a list…
MatWeb – Pretty heavy-duty, but it’s free… The sticky part is that if you don’t know how to quantify a particular material property (like, say, flexural modulus), you’re not going to find the material you need… Kinda a Catch-22 actually.
CES Selector – Looks powerful, but I think you have to pay for this one.
PolyOne’s Material Search Tool – I’m guessing this one;s limited to what’s in PolyOne’s line card, but I’m not sure.
Plastics International’s Database – Another material supplier’s database (Minnesota Plastics). So, like PolyOne, probably limited to what they carry… But nice interface.
CustomPart.net – This site has a bunch of cools stuff like a part cost estimator for a wide range of processes.
Inventables – Always fun and now a lot of it is free for the browsing. This more about unusual materials and components, but definitely worth a visit.
Materia – Another more expansive web site dedicated to all things material for products, interiors, etc. You need to join (for free) to access their Material Explorer.
Transmaterial – Architect Blaine Brownell’s expansive site of all things material. This site is the online companion to his books by the same name.
Ecolect – Browse through sustainable materials.
The Wood Explorer – Lets you browse wood species with pictures.
Selecting Materials – A database of material databases… sounds redundant…
Hope this helps. Let me know if you find any others you find useful.