| Customization: | Available |
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| Type: | 3D Welding Table |
| Structure: | Platform |
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Aspect | Cast Iron | Q355 (Structural Steel) |
Material Category | Iron-carbon alloy with high carbon content (2-4%), produced by casting. | Low-alloy high-strength structural steel (GB/T 1591-2018), produced by rolling/forging. |
Common Types | Gray Iron, Ductile Iron. | Replaces the old grade Q345. |
Key Composition | High carbon (2-4%), high silicon (1-3%), low manganese (0.1-1%). | Low carbon (≤0.24%), low silicon (≤0.55%), manganese (1.0-1.6%), with microalloys (Nb, V, Ti). |
Mechanical Properties | Tensile Strength: 120-400 MPa (low) | Tensile Strength: ≥355 MPa (actual: 470-630 MPa) |
Brittle, low toughness | High toughness, impact resistance | |
High hardness (HB 150-300) | Moderate hardness (HB 130-180) | |
Poor weldability | Excellent weldability. | |
Manufacturing Process | Casting (molten metal poured into molds). Ideal for complex shapes. | Hot/cold rolling, forging. Easy to cut, weld, and machine. |
Applications | Engine blocks, machine tool bases, pipes, cookware (e.g., cast iron pans). | Structural frameworks (buildings, bridges), ships, pressure vessels, machinery. |
Advantages | Cost-effective, wear-resistant, good vibration damping. | High strength-to-weight ratio, ductile, suitable for dynamic loads. |
Limitations | Brittle, difficult to machine post-casting. | Requires corrosion protection in harsh environments. |
Parameter | D16 Series | D22 Series | D28 Series |
Application | Small precision parts, electronic assembly | Medium-sized components, multi-station setups | Heavy-duty equipment, large structural parts |
Load Capacity | Medium (≤2 tons) | High (≤5 tons) | Extreme (≥10 tons) |
Flexibility | Optimal (dense small holes) | Balanced | Focused on strength |
Typical Industries | Automotive parts, laboratories | Construction machinery, rail transit | Shipbuilding, energy equipment |
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