| Aluminum | Metal | 6061-T6 | 2.7 | 310 | 276 | 95 HB | 582 | Good corrosion resistance | 167 | Good | Good | Medium | CNC Machining, Extrusion, Metal Casting | Lightweight | Lower wear resistance | Consumer products, frames | Highly recyclable | | ⚡ Inspect |
| Aluminum | Metal | 7075-T6 | 2.8 | 570 | 505 | 150 HB | 477 | Moderate corrosion resistance | 130 | Good | Poor | High | CNC Machining | High strength-to-weight | Poor weldability | Aerospace | Recyclable | | ⚡ Inspect |
| Steel | Metal | A36 | 7.85 | 400 | 250 | 120 HB | 1425 | Needs coating | 50 | Excellent | Excellent | Low | Welding & Fabrication, Machining & Fabrication | Low cost | Heavy | Structures | Recyclable | | ⚡ Inspect |
| Steel | Metal | 304 Stainless | 8 | 515 | 215 | 70 HRB | 1400 | Excellent corrosion resistance | 16 | Fair | Excellent | Medium | Sheet Metal Stamping/Bending, Welding & Fabrication | Food-safe | Costlier | Kitchenware | Recyclable | | ⚡ Inspect |
| Steel | Metal | 316 Stainless | 8 | 580 | 290 | 79 HRB | 1375 | Marine-grade resistance | 16 | Fair | Excellent | High | Sheet Metal Stamping/Bending | Chemical resistance | Higher cost | Medical, marine | Recyclable | | ⚡ Inspect |
| Titanium | Metal | Grade 5 | 4.43 | 950 | 880 | 36 HRC | 1660 | Excellent | 7 | Poor | Fair | Very High | CNC Machining, Forging | High strength/lightweight | Expensive | Medical implants | Recyclable | | ⚡ Inspect |
| Copper | Metal | C110 | 8.96 | 220 | 70 | 50 HB | 1085 | Good | 401 | Good | Good | High | Machining & Fabrication | Electrical conductivity | Heavy | Electronics | Recyclable | | ⚡ Inspect |
| Brass | Metal | C360 | 8.5 | 345 | 125 | 100 HB | 930 | Good | 120 | Excellent | Good | Medium | Machining & Fabrication | Easy machining | Weight | Fittings | Recyclable | | ⚡ Inspect |
| ABS | Polymer | General Purpose | 1.04 | 45 | N/A | R110 | 105 | Moderate | 0.18 | Easy | No | Low | Injection Molding, FDM 3D Printing, Vacuum Casting | Low cost | UV sensitivity | Consumer electronics | Moderate | | ⚡ Inspect |
| PC | Polymer | Polycarbonate | 1.2 | 70 | N/A | R118 | 147 | Good | 0.2 | Moderate | No | Medium | Injection Molding, FDM 3D Printing, Vacuum Casting | Impact resistant | Scratches | Safety products | Moderate | | ⚡ Inspect |
| PP | Polymer | Polypropylene | 0.9 | 35 | N/A | R95 | 165 | Excellent chemical resistance | 0.22 | Easy | Limited | Low | Injection Molding, FDM 3D Printing | Low density | Lower stiffness | Containers | Good | | ⚡ Inspect |
| HDPE | Polymer | HDPE | 0.95 | 31 | N/A | Shore D 65 | 130 | Excellent chemical resistance | 0.5 | Easy | Limited | Low | Blow Molding | Tough | Low temperature limits | Bottles | Recyclable | | ⚡ Inspect |
| Nylon | Polymer | PA6 | 1.14 | 75 | N/A | Rockwell R120 | 220 | Good | 0.25 | Good | No | Medium | Injection Molding, FDM 3D Printing, Vacuum Casting | Wear resistant | Moisture absorption | Gears | Moderate | | ⚡ Inspect |
| POM | Polymer | Acetal | 1.41 | 70 | N/A | M90 | 175 | Good | 0.31 | Excellent | No | Medium | CNC Machining, Injection Molding | Dimensional stability | Limited UV resistance | Precision parts | Moderate | | ⚡ Inspect |
| PEEK | Polymer | PEEK | 1.3 | 100 | N/A | Rockwell M99 | 343 | Excellent | 0.25 | Good | No | Very High | CNC Machining, Injection Molding | High performance | Expensive | Medical, aerospace | Long life | | ⚡ Inspect |
| PVC | Polymer | Rigid PVC | 1.4 | 52 | N/A | Shore D 80 | 160 | Good | 0.19 | Good | No | Low | Extrusion | Cheap | Environmental concerns | Pipes | Moderate | | ⚡ Inspect |
| Silicone | Elastomer | VMQ | 1.1 | 8 | N/A | Shore A 50 | 200 | Excellent weathering | 0.2 | N/A | N/A | Medium | Compression Molding | Flexible | Low strength | Seals | Long life | | ⚡ Inspect |
| EPDM | Elastomer | EPDM | 0.9 | 15 | N/A | Shore A 70 | 250 | Excellent outdoor resistance | 0.25 | N/A | N/A | Low | Compression Molding | Weather resistant | Oil sensitivity | Gaskets | Moderate | | ⚡ Inspect |
| Natural Rubber | Elastomer | NR | 0.93 | 25 | N/A | Shore A 40 | 180 | Poor ozone resistance | 0.13 | N/A | N/A | Low | Compression Molding | Elastic | Aging | Tires | Natural source | | ⚡ Inspect |
| Carbon Fiber | Composite | Epoxy CFRP | 1.6 | 600 | N/A | Very high | N/A | Excellent | 10 | Difficult | No | Very High | Composite Hand Layup, Resin Transfer Molding | Ultra-lightweight | Expensive | Sports, aerospace | Difficult recycling | | ⚡ Inspect |
| Glass Fiber | Composite | GFRP | 1.9 | 350 | N/A | High | N/A | Excellent | 1 | Difficult | No | Medium | Composite Hand Layup | Low cost composite | Heavier than CFRP | Boats | Moderate | | ⚡ Inspect |
| Wood | Natural | Oak | 0.75 | 90 | N/A | Janka 6000N | N/A | Biodegradable | 0.17 | Good | N/A | Medium | CNC Machining, Carpentry & Hand Crafting | Natural appearance | Moisture sensitivity | Furniture | Renewable | | ⚡ Inspect |
| Wood | Natural | Plywood | 0.6 | 40 | N/A | Medium | N/A | Moderate | 0.13 | Good | N/A | Low | Sheet CNC Cutting (Laser/Router) | Low cost | Edge finishing | Furniture | Renewable | | ⚡ Inspect |
| Cotton | Textile | Combed Cotton | 1.54 | 400 | N/A | Soft | Decomposes | Biodegradable | 0.04 | N/A | N/A | Low | Industrial Loom Weaving, Industrial Knitting | Comfort | Wrinkles | Bedsheets, clothing | Renewable | | ⚡ Inspect |
| Polyester | Textile | PET Fiber | 1.38 | 700 | N/A | Soft | 255 | Microplastic concerns | 0.05 | N/A | N/A | Low | Industrial Loom Weaving | Durable | Petroleum based | Apparel, bags | Recyclable grades | | ⚡ Inspect |
| Nylon Fabric | Textile | Cordura | 1.15 | 750 | N/A | Tough | 220 | Good | 0.25 | N/A | N/A | Medium | Industrial Loom Weaving | Abrasion resistant | Moisture absorption | Backpacks | Long life | | ⚡ Inspect |
| Leather | Textile | Full Grain | 0.86 | 25 | N/A | Flexible | N/A | High environmental footprint | 0.14 | N/A | N/A | High | Sheet CNC Cutting (Laser/Router), Industrial Sewing & Stitching | Premium feel | Cost | Bags, footwear | Variable | | ⚡ Inspect |
| Canvas | Textile | Cotton Canvas | 0.7 | 300 | N/A | Medium | N/A | Biodegradable | 0.04 | N/A | N/A | Low | Industrial Sewing & Stitching | Strong fabric | Water absorption | Tote bags | Renewable | | ⚡ Inspect |
| PU Foam | Foam | Flexible PU | 0.03 | 0.2 | N/A | Soft | 180 | Petrochemical based | 0.03 | N/A | N/A | Low | Foam Casting/Expansion | Comfort | Aging | Mattresses | Limited | | ⚡ Inspect |
| Memory Foam | Foam | Viscoelastic PU | 0.05 | 0.3 | N/A | Soft | 180 | Petrochemical based | 0.03 | N/A | N/A | Medium | Foam Casting/Expansion | Pressure relief | Heat retention | Beds | Limited | | ⚡ Inspect |
| Cast Iron | Metal | Gray Iron | 7.2 | 250 | N/A | 180 HB | 1150 | Moderate | 55 | Good | Poor | Low | Metal Casting | Vibration damping | Brittle | Machine bases | Recyclable | | ⚡ Inspect |
| Tool Steel | Metal | D2 | 7.7 | 750 | 500 | 60 HRC | 1420 | Moderate | 20 | Fair | Poor | High | Machining & Fabrication, Forging | Wear resistance | Difficult machining | Dies | Recyclable | | ⚡ Inspect |
| Steel | Metal | 4140 | 7.85 | 655 | 415 | 197 HB | 1416 | Moderate | 43 | Good | Good | Medium | Machining & Fabrication | Strong | Needs coating | Heavy equipment | Recyclable | | ⚡ Inspect |
| Bronze | Metal | C932 | 8.8 | 250 | 140 | 65 HB | 950 | Good | 60 | Fair | Good | High | Metal Casting | Bearing properties | Cost | Bushings | Recyclable | | ⚡ Inspect |
| Ceramic | Ceramic | Alumina | 3.9 | 300 | N/A | Very high | 2072 | Excellent | 30 | Poor | No | Medium | Ceramic Sintering / Pressing | Electrical insulation | Brittle | Electronics | Long life | | ⚡ Inspect |
| Ceramic | Ceramic | Zirconia | 6 | 1000 | N/A | Very high | 2700 | Excellent | 2 | Poor | No | High | Ceramic Sintering / Pressing | Tough ceramic | Expensive | Medical | Long life | | ⚡ Inspect |
| Wool | Textile | Merino Wool | 1.3 | 150 | N/A | Soft | Decomposes | Biodegradable | 0.03 | N/A | N/A | High | Industrial Loom Weaving, Industrial Knitting | Thermal insulation | Shrinks easily | Bedsheets, clothing | Renewable, biodegradable | | ⚡ Inspect |
| Denim | Textile | Raw Cotton Denim | 0.8 | 200 | N/A | Medium | Decomposes | Biodegradable | 0.04 | N/A | N/A | Low | Industrial Sewing & Stitching, Sheet CNC Cutting (Laser/Router) | Extremely durable | Heavy, bleeds color | Bags, clothing | Renewable | | ⚡ Inspect |
| Silk | Textile | Mulberry Silk | 1.25 | 350 | N/A | Soft | Decomposes | Biodegradable | 0.05 | N/A | N/A | Very High | Industrial Loom Weaving, Industrial Sewing & Stitching | Smooth feel | Delicate | Bedsheets, premium clothing | Renewable | | ⚡ Inspect |
| Neoprene | Elastomer | Chloroprene Rubber | 1.23 | 12 | N/A | Shore A 60 | 130 | Excellent weather resistance | 0.15 | N/A | N/A | Medium | Compression Molding, Sheet CNC Cutting (Laser/Router) | Waterproof, insulation | Low heat limit | Laptop sleeves, protective wear | Moderate | | ⚡ Inspect |
| TPU | Elastomer | Thermoplastic Polyurethane | 1.2 | 35 | N/A | Shore A 85 | 190 | Good oil & abrasion resistance | 0.18 | N/A | N/A | Medium | Injection Molding, Compression Molding | Elastic & tough | Yellows under UV | Phone cases, watch straps, footwear | Recyclable | | ⚡ Inspect |
| Acrylic | Polymer | PMMA | 1.18 | 72 | N/A | M95 | 160 | Good UV resistance | 0.19 | Good | No | Low | Injection Molding, CNC Machining, Sheet CNC Cutting (Laser/Router) | Optically clear | Brittle | Lenses, display screens | Recyclable | | ⚡ Inspect |
| Zinc Alloy | Metal | Zamak 3 | 6.6 | 283 | 200 | 82 HB | 387 | Good plated resistance | 113 | Excellent | Poor | Low | Metal Casting | Easy casting, premium weight | Heavy, low fatigue strength | Zippers, logos, decorative hardware | Recyclable | | ⚡ Inspect |
| Magnesium Alloy | Metal | AZ91D | 1.8 | 230 | 150 | 70 HB | 595 | Moderate | 72 | Excellent | Fair | High | Metal Casting, Machining & Fabrication | Ultra-lightweight structural metal | Flammability risk when machined | Laptop frames, camera bodies | Highly recyclable | | ⚡ Inspect |
| SAN | Polymer | General Purpose SAN | 1.08 | 72 | N/A | M80 | 115 | Good chemical resistance, brittle | 0.12 | Easy | No | Low | Injection Molding, Vacuum Casting | Rigid, transparent & chemical resistant | Highly brittle, low impact | KitchenwareShelves, cosmetic jars | Recyclable | | ⚡ Inspect |
| PBT | Polymer | 30% Glass Filled PBT | 1.53 | 130 | N/A | R120 | 223 | Excellent chemical & thermal resistance | 0.25 | Fair | No | Medium-High | Injection Molding, Vacuum Casting | Extremely rigid & heat resistant | High tool wear & shrinkage anisotropy | Electrical connectors, automotive housings | Moderate | | ⚡ Inspect |
| Aluminium | Metal | 366 | 34 | 45 | 45 | 245 | 145 | Excellent | 34 | Good | Fair | Low | CNC Machining, Metal Casting, Welding & Fabrication, Sheet Metal Stamping/Bending | N/A | N/A | N/A | highly recyclable | | ⚡ Inspect |
| Stainless steel | Metal | Grade 347 | 23 | 1150 | 80 | 16 HRC | 660 | Excellent | 3 | Poor | Fair | Very High | CNC Machining | High strength/lightweight | Expensive | Medical implants, Aerospace | Recyclable | | ⚡ Inspect |