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AZ61A magnesium alloy plate,high strength magnesium alloy sheet,corrosion resistant magnesium plate
AZ31B Magnesium Plate 20×30×3700mm
AZ31B magnesium plate (20mm thickness × 30mm width × 3700mm length) from Tankii Alloy Material is a high-strength wrought magnesium alloy engineered through hot rolling, solution treatment, and artificial aging processes. This commercial magnesium alloy offers an optimal balance of ultra-lightweight properties (density 1.78g/cm³), excellent mechanical strength, and superior formability, making it ideal for lightweight components in aerospace, automotive, and 3C electronics applications.
Standard Designations & Material Foundation
- Alloy Grade: AZ31B (Mg-Al-Zn system; equivalent to ASTM B90/B90M, UNS M11311)
- Key Specification: 20mm (thickness) × 30mm (width) × 3700mm (length); tolerance: thickness ±0.5mm, width ±0.8mm, length ±10mm
- Chemical Composition (wt%): Al: 2.5-3.5%; Zn: 0.6-1.4%; Mn: 0.2-1.0%; Mg: balance (≥94%)
- Compliant Standards: ASTM B90/B90M, GB/T 5153-2016 (wrought magnesium alloy plates), RoHS 2.0
- Manufacturer: Tankii Alloy Material, certified to ISO 9001 and IATF 16949
Key Advantages
Ultra-Lightweight & High-Strength Balance
- Weight Reduction Advantage: Density of 1.78g/cm³ is 33% lighter than aluminum and 78% lighter than steel—a 20×30×3700mm plate weighs only ~4.0kg (vs. 6.1kg for aluminum)
- Mechanical Strength: Tensile strength ≥230 MPa, yield strength ≥160 MPa (T6 temper), elongation ≥10%
Optimized Specification for Long Structural Parts
- Long-Length Adaptability: 3700mm length avoids splicing of long components, reducing assembly costs
- Dimensional Uniformity: Thickness tolerance ±0.5mm and flatness ≤1mm/m ensure consistent processing accuracy
Excellent Processability & Corrosion Resistance
- Formability: Good cold/hot working performance—supports stamping, bending, and CNC machining
- Corrosion Resistance: Surface treated with chemical conversion coating (optional), passing 240-hour ASTM B117 salt spray testing
Technical Specifications
| Attribute | Value (Typical) |
|---|---|
| Alloy Grade | AZ31B (T6 temper) |
| Dimensions | 20mm (thickness) × 30mm (width) × 3700mm (length) |
| Chemical Composition (wt%) | Al: 2.5-3.5%; Zn: 0.6-1.4%; Mn: 0.2-1.0%; Mg: balance |
| Density | 1.78 g/cm³ |
| Tensile Strength | ≥230 MPa |
| Yield Strength | ≥160 MPa |
| Elongation (25℃) | ≥10% |
| Hardness (HV) | 65-80 |
| Melting Point | ~630℃ |
| Operating Temperature Range | -50℃ to 120℃ |
| Surface Finish | Mill finish (Ra ≤1.6μm); optional chemical conversion coating |
Product Specifications
| Item | Specification |
|---|---|
| Supply Form | Single plate (20×30×3700mm); batch packaging (10 plates/carton) |
| Surface Treatment | Mill finish; optional chemical conversion coating/anodizing |
| Machinability | Compatible with CNC milling, stamping, and TIG welding |
| Packaging | Moisture-proof film + foam cushion + wooden crate |
| Customization | Thickness (5-50mm); width (10-200mm); length (1000-6000mm) |
Typical Application Scenarios
- Aerospace: Long structural beams for small drones (3700mm length avoids splicing, lightweight reduces flight energy consumption)
- Automotive: Lightweight interior trim beams (20mm thickness meets load-bearing needs, 30% weight reduction vs. aluminum)
- 3C Electronics: Frame components for large-size smart displays (ultra-lightweight reduces installation load)
- Sports Equipment: Long handles for lightweight fitness equipment (high strength ensures durability)
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