Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of 6061-t651 aluminum alloy plate in China. With abundant experience, we warmly welcome you to wholesale high quality 6061-t651 aluminum alloy plate in stock here from our factory. Good service and reasonable price are available.
6061-T651 Aluminum Alloy Plate Description
Are You Looking for a Reliable 6061 Aluminum Plate Supplier?
If your current aluminum plates are warping during heavy CNC machining, or if you are finding hidden porosity that ruins your expensive tooling parts, you need a better material source.
At GNEE, we specialize in manufacturing premium 6061 and 6061-T651 aluminum plates. We provide perfectly flat, stress-relieved, and defect-free aluminum plates engineered specifically for precision machining, mold making, and automation equipment.
Stop gambling with unstable materials that waste your machining time. Send us your required thickness, width, and quantity today. Click the "Inquiry Now" button below, and our expert sales team will provide a competitive factory quote within 24 hours!
What is a 6061 Aluminum Plate and Why Do You Need the T651 Temper?
6061 aluminum plate is a highly versatile heat-treatable alloy containing magnesium and silicon. It offers an outstanding balance of structural strength, weldability, and corrosion resistance.
However, for purchasing engineers, understanding the temper is critical to avoiding material failure:
- 6061-T6 Aluminum Plate: This temper is solution heat-treated and artificially aged. It has high internal residual stress. If you perform heavy CNC milling on a T6 plate, the stress will release, causing the plate to bend, warp, or curl.
- 6061-T651 Aluminum Plate (Stress-Relieved): This is the ultimate choice for machinists. After heat treatment, the plate undergoes a controlled permanent stretch (1.5% to 3%). This process permanently relieves internal stress. When you buy GNEE's 6061-T651 aluminum plate, you can mill away up to 80% of the material, and the remaining part will stay completely flat and dimensionally stable.
What Are the Advantages of GNEE's 6061 Aluminum Plate?
We do not just sell metal; we solve your machining bottlenecks. Here is why machinery and tooling companies choose our 6061 aluminum plates:
- Zero Internal Defects: Thick plates are prone to hidden porosity. We conduct 100% Ultrasonic Testing (UT) to ASTM B594 standards on our 6061 aluminum plates. We guarantee no blisters, cracks, or sand holes inside the material.
- Guaranteed Flatness & No Warping: Thanks to our precise T651 stretching process and heavy-duty leveling machines, our plates remain perfectly flat during and after high-speed CNC cutting.
- Perfect Hard Anodizing Results: By strictly controlling trace elements like copper and chromium, our plates ensure uniform color and consistent oxide layers when you send your finished parts for surface treatments.
- Tight Dimensional Tolerances: We use precision band saws to cut your plates. You receive accurate thickness and width tolerances, reducing your initial surface milling time.
the Specifications and Properties of 6061 Aluminum Plate
To guarantee consistent load-bearing strength and machinability, we strictly control the parameters of our aluminum plates.
| Specification | Details |
|---|---|
| Alloy Grade | 6061 |
| Available Tempers | T6, T651, T4, O |
| Thickness Range | 6.0 mm – 400 mm (1/4" – 16") |
| Width Range | 1000 mm – 2200 mm |
| Length Range | Up to 6000 mm |
| Surface Finish | Mill finish, smooth surface, free from oil stains, cracks, and deep scratches |
| Standards | ASTM B209 / AMS 4027 / EN 573 |
2. Chemical Composition of 6061 Aluminum Alloy (%)
| Alloy | Mg | Si | Cu | Cr | Fe | Zn | Mn | Ti | Al |
|---|---|---|---|---|---|---|---|---|---|
| 6061 | 0.8 – 1.2 | 0.4 – 0.8 | 0.15 – 0.40 | 0.04 – 0.35 | ≤ 0.70 | ≤ 0.25 | ≤ 0.15 | ≤ 0.15 | Remainder |
The chemical composition conforms to ASTM B209 / EN 573 standards.
3. Mechanical Properties (6061-T651 Temper)
| Thickness (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 6.0 – 12.5 | ≥ 290 | ≥ 240 | ≥ 10 | 95 |
| 12.5 – 150 | ≥ 290 | ≥ 240 | ≥ 8 | 95 |
| 150–200 | ≥ 275 | ≥ 225 | ≥ 6 | 90 |
Where is 6061 Aluminum Plate Commonly Used?
Because it is easy to machine and weld, 6061 aluminum plate is the backbone of modern industrial manufacturing:
- Precision CNC Machining: Custom machine parts, semiconductor equipment components, and aerospace test fixtures.
- Tooling & Molding: Injection mold bases, blow molds, and precision assembly jigs.
- Automation & Robotics: Structural machine frames, robotic arms, and heavy-duty mounting brackets.
- Automotive & Transportation: High-strength chassis components, engine blocks, and marine fittings.
Who is GNEE? (Your Trusted 6061 Aluminum Plate Manufacturer)
GNEE is a direct manufacturer and global exporter of industrial aluminum products. We understand that in the B2B sector, consistency and reliability are everything.
Our Company Strength:
- Advanced Equipment: We are equipped with heavy-duty stretching machines, continuous quenching lines, and precision CNC saws to ensure every plate meets exact engineering standards.
- Strict Quality Control: From ingot melting to the final product, our ISO-certified factory monitors every step. We provide an EN10204 3.1 Mill Test Certificate (MTC) with every shipment.
- Large Inventory & Customization: We hold thousands of tons of standard 6061 aluminum plates in stock for rapid dispatch. We also provide custom cut-to-size block services to save you processing time.
How Do We Package and Ship Your 6061 Aluminum Plate?
Sea freight oxidation (white rust) is a major headache for buyers. GNEE uses strict export-grade packaging to protect your investment:
Moisture Isolation: Every aluminum plate is wrapped tightly in waterproof plastic film and thick kraft paper.
Desiccant Protection: We place industrial desiccants inside the packaging to absorb any trapped moisture during ocean transit.
Secure Palletizing: The wrapped plates are strapped securely onto solid, fumigated wooden pallets.
Edge Protection: We apply hard cardboard or metal edge protectors to prevent physical damage during loading and unloading.
Your cargo will arrive at your workshop completely dry, flat, and ready to machine.
Frequently Asked Questions (FAQ) About 6061 Aluminum Plate
How to Get a Quick Quote for a 6061 Aluminum Plate Today?
Do not let material delays or poor quality slow down your production schedule. GNEE is ready to deliver fast, reliable, and stress-relieved aluminum solutions.
Take action now. Email us your specific requirements, including the alloy, temper, thickness, dimensions, and total quantity. Click the "Contact Us" button below, and our technical sales engineers will send you the best factory-direct pricing today!
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