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| Category | Material | Common Grades | Key Features | Typical Applications |
|---|---|---|---|---|
| Metal | Carbon Steel | Q235, 45#, A36 | High strength, low cost | Structural parts, shafts |
| Metal | Stainless Steel | 303, 304, 316 | Corrosion resistant | Medical devices, food machinery |
| Metal | Aluminum Alloy | 6061, 7075, 5052 | Lightweight, easy to machine | Aerospace, electronics |
| Metal | Copper Alloys | Brass, Beryllium Copper | Conductive, corrosion resistant | Electrical terminals, valves |
| Metal | Titanium Alloy | TC4 (Gr5), TA2 | Biocompatible, high strength | Medical implants, aerospace |
| Plastic | Engineering Plastics | ABS, PC, POM, Nylon | Wear resistant, self-lubrication | Gears, housings |
| Plastic | High-Performance | PEEK, PTFE, PPS | Heat & chemical resistance | Semiconductors, seals |