High-Stability Aluminium Tooling Plates
Certified to ASTM B209 and AMS 4027 with guaranteed flatness, ultrasonic sound integrity, and EN 10204 3.1 certification.
ASTM B209 Structural Aluminium Plate Specifications
Starlight Tubes stocks and cuts heavy structural aluminium plates engineered for high-precision manufacturing, mould tooling, and marine structural fabrications.
All plates are stretcher-leveled to minimize machining distortion and are available in standard 4x8 ft and 5x10 ft sheets or custom waterjet and saw-cut blocks.
Technical Specifications
ASTM / ASME CompliantTechnical Specifications — Heavy Tooling Aluminium Plates
Chemical composition and tensile specifications for ASTM B209 heavy rolling aluminium plates in 6061-T651, 5052-H32, and 7075-T651
| Alloy | Al | Zn | Mg | Si | Cu | Cr |
|---|---|---|---|---|---|---|
| 6061-T651 | Balance | 0.25 max | 0.80-1.20 | 0.40-0.80 | 0.15-0.40 | 0.04-0.35 |
| 5052-H32 | Balance | 0.10 max | 2.20-2.80 | 0.25 max | 0.10 max | 0.15-0.35 |
| 7075-T651 | Balance | 5.10-6.10 | 2.10-2.90 | 0.40 max | 1.20-2.00 | 0.18-0.28 |
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Frequently Asked Questions on Heavy Tooling & Structural Aluminium Plates
Key engineering, tolerance, and international compliance answers from our metallurgical quality desk.
The T651 temper involves stretching the plate after solution heat treatment to relieve internal residual stresses, preventing warping or distortion during high-speed CNC machining.
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Submit your required sizes, wall thicknesses, material grades, and total tonnage. Our technical sales engineers respond with complete mill pricing and lead times within 24 hours.