Tin coating protection layer on steel substrate. Features excellent weldability, high cost-effectiveness, and superior shielding performance. Widely used in smartphones, tablets, consumer electronics and mass-production applications. The most cost-effective shielding cover material choice.
| Performance Parameter | Specification | Description |
|---|---|---|
| Material | SPTE (Electroplated Tinplate) | Low-carbon steel substrate with tin coating 2-12 microns |
| Electrical Conductivity | ~15% IACS | Moderate, sufficient for most consumer electronics shielding needs |
| Magnetic Permeability | High (μr~1000+) | Steel ferromagnetism provides magnetic shielding characteristics, blocks low-frequency magnetic interference |
| Density | 7.85 g/cm³ | Lighter than copper, heavier than aluminum, optimal cost consideration |
| Tensile Strength | 250-350 MPa | Moderate strength, supports deep drawing forming |
| Hardness | HV 120-160 | After welding, heat treatment may be needed to restore hardness |
| Weldability | Excellent (Grade A) | Easy to weld with stable joint quality, supports wave soldering and reflow soldering |
| Corrosion Resistance | Good (Grade B) | Tin coating provides protection, requires additional protection in marine environments |
| Standard Thickness | 0.15-0.25 mm | Consumer electronics standard, adjustable based on shielding effectiveness requirements |
| Cost Relative Value | 1.0x (Baseline) | Copper 5x, Stainless Steel 2x, Nickel Silver 3x cost and above |
Tinplate shielding covers are best suited for the following applications, where cost sensitivity is critical but reliability requirements are reasonable:
Typical Specifications: Sizes 10×15mm ~ 60×80mm, thickness 0.15-0.25mm, supports square, circular, rectangular and other custom shapes.
Based on application environment and aesthetic requirements, tinplate shielding covers offer multiple surface treatment solutions:
| Specification Item | Range | Common Values |
|---|---|---|
| Thickness | 0.10 – 0.30 mm | 0.15mm, 0.20mm, 0.25mm |
| Dimensions | Custom any size | 8×8mm ~ 100×120mm |
| Shape | Rectangular, circular, custom | Stamping technology enables complex shapes |
| Holes | Supports openings | Cooling holes, inspection windows, snap holes |
| Minimum Order | 1000 ~ 5000 PCS | Depends on customization complexity |
| Lead Time | 5-15 days | Standard products as fast as 48 hours |
| Sampling Fee | $200-500 | Early-stage small-batch verification, tooling fee refundable |
| Comparison Dimension | Tinplate (SPTE) | Nickel Silver | Stainless Steel | Copper | Aluminum Alloy |
|---|---|---|---|---|---|
| Cost | Lowest ⭐⭐⭐⭐⭐ | High ⭐⭐ | Medium ⭐⭐⭐ | High ⭐ | Low ⭐⭐⭐⭐ |
| Electrical Conductivity | ~15% IACS ⭐⭐⭐ | ~6% IACS ⭐⭐ | ~5% IACS ⭐⭐ | 100% IACS ⭐⭐⭐⭐⭐ | ~35% IACS ⭐⭐⭐⭐ |
| Weldability | Excellent ⭐⭐⭐⭐⭐ | Good ⭐⭐⭐⭐ | Moderate ⭐⭐⭐ | Excellent ⭐⭐⭐⭐⭐ | Moderate ⭐⭐⭐ |
| Corrosion Resistance | Good ⭐⭐⭐ | Excellent ⭐⭐⭐⭐⭐ | Excellent ⭐⭐⭐⭐⭐ | Good ⭐⭐⭐ | Excellent ⭐⭐⭐⭐⭐ |
| Lightweight | Moderate ⭐⭐⭐ | Moderate ⭐⭐⭐ | Moderate ⭐⭐⭐ | Low ⭐⭐ | Lightest ⭐⭐⭐⭐⭐ |
| Recommended Applications | Consumer electronics, mass production | Military, medical, repeated disassembly | Automotive, industrial, high-temperature | RF shielding, millimeter-wave | Wearables, lightweight applications |
Serving telecom, consumer electronics, automotive, medical and many other industries
20+ high-precision stamping presses, 20-member professional R&D team, 2-3 day fast delivery, providing full-process service from design to mass production
Stamping Workshop
Equipped with 20+ high-speed precision stamping presses, with a daily stamping capacity of 3 million strokes and accuracy of ±0.01mm.
Tooling Center
20-member professional R&D team, producing 100+ sets of precision tooling per month, from drawings to finished products in as fast as 2-3 days.
Quality Lab
Incoming inspection → In-process control → Final inspection → Shipping inspection, dual certified with ISO 9001 and IATF 16949.
We provide end-to-end services from design, sampling, certification to mass production. Cost optimization, delivery assurance, stable quality.
