Precision CNC Machining for Galvanized Steel Sheet – Corrosion‑Resistant Custom Parts
Galvanized steel sheet CNC machining is a cost‑effective solution for parts that require excellent corrosion resistance, durability, and good formability. The zinc coating protects the underlying steel from rust, making it ideal for outdoor enclosures, automotive components, and building structures. At Ranglink, we specialize in custom galvanized steel fabrication – from laser cutting to bending, punching, and welding.
– Superior corrosion resistance (zinc coating acts as a barrier).
– Excellent durability for outdoor and harsh environments.
– Good weldability and formability (bending, stamping).
– Cost‑effective alternative to stainless steel.
– Readily available in various thicknesses (0.5 mm – 6 mm).
Key Properties of Galvanized Steel Sheet
| Property | Value / Rating |
|---|---|
| Tensile strength | ~300–450 MPa (depends on base steel grade) |
| Yield strength | ~200–350 MPa |
| Elongation (typical) | ~20–25% |
| Hardness (Rockwell B) | ~60–80 |
| Density | ~7.85 g/cm³ |
| Corrosion resistance | Excellent (zinc coating prevents rust) |
| Machinability rating | Good (similar to low‑carbon steel; use sharp tools) |
| Weldability | Good (avoid zinc fumes; ventilation required) |
Our CNC Machining Capabilities for Galvanized Steel Sheet
| Parameter | Specification |
|---|---|
| Max part size (milling) | 1100 × 600 × 500 mm |
| Sheet thickness range | 0.5 mm – 6 mm |
| Laser cutting tolerance | ±0.1 mm |
| Bending tolerance | ±0.3 mm |
| Standard tolerance | ±0.05 mm |
| Lead time (prototypes) | 3 business days |
Processes available: Laser cutting · CNC Bending · Punching · Welding · CNC Milling (for post‑galvanized features) · Deburring & edge rounding.
Surface Treatment & Post‑Processing
Note: Laser cutting and welding may remove the zinc layer at edges. For maximum corrosion protection, apply cold zinc spray or powder coating after machining.
Common Applications of CNC Machined Galvanized Steel Sheet
Quality Assurance
- ISO 9001:2015 certified – audited quality management system.
- Full traceability – material certificates and inspection reports.
- Inspection equipment – CMM, calipers, micrometer, surface roughness tester.
- Every part inspected – we verify dimensions, edge quality, and coating integrity.
Why Choose Ranglink for Galvanized Steel Sheet CNC Machining?
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