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| Material Category | Common Grade Examples | bending Characteristics & Challenges | Primary Application Areas |
|---|---|---|---|
| Mild / Low-Carbon Steel | Q235, SS400, DC01 (St12) | Excellent ductility, easy to bend and form. Cost-effective. Requires rust prevention, typically needing surface treatment (e.g., painting, plating). | Cabinets, enclosures, brackets, general hardware, structural components. |
| Stainless Steel | 304, 316, 430 |
Good corrosion resistance and strength. Exhibits significant springback during bending, requiring precise process compensation. Surface is prone to scratching, needing protective film or dedicated tooling. |
Food processing equipment, medical devices, chemical containers, kitchenware, architectural decor. |
| Aluminum Alloys | 5052-H32, 6061-T6 |
Lightweight with a good strength-to-weight ratio and corrosion resistance. 5052 offers good flexibility for bending; 6061-T6 is stronger but prone to cracking during bending, usually requiring a larger bend radius. |
Aerospace components, electronics enclosures (e.g., laptops, routers), automotive parts, heat sinks, lightweight structures. |
| Copper, Brass, Bronze | C11000 (Copper), C26000 (Brass) | Excellent electrical/thermal conductivity and antimicrobial properties. Softer material, prone to tooling marks during bending, requiring fine tooling and process control |
Electrical connectors, busbars, thermal management components, decorative architectural elements. |
| Galvanized Steel | SGCC, DX51D+Z | Mild steel base with a zinc coating for basic rust protection. The zinc layer may micro-crack or flake at the bend; this does not compromise corrosion protection but must be controlled. |
Outdoor enclosures, electrical distribution boxes, ventilation ducts, general outdoor structures. |
| High-Strength / Special Steel | Q345, S355MC, Weathering Steel | Higher strength enables lightweight design. Bending requires higher press brake tonnage; springback control is crucial; causes greater tooling wear. |
Truck chassis, construction machinery booms, crane structures, outdoor sculptures (weathering steel). |