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Help CenterAluminum Plate 6061 T6 1/4 Inch Thickness ASTM B209 Mill Finish for Precision Machining
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality Aluminum Plate 6061 T6 in 1/4 inch thickness, conforming to ASTM B209 with a standard mill finish. As a trusted supplier established in 2025 with an annual export value exceeding US$50 million and ISO9001 certification, we ensure that every plate meets rigorous standards for precision machining applications. Our advanced manufacturing processes and strict quality control guarantee consistent dimensions, excellent machinability, and superior mechanical properties, making this product an ideal choice for demanding industrial projects.
The 6061 T6 aluminum alloy is widely recognized for its excellent strength-to-weight ratio, corrosion resistance, and weldability. The T6 temper involves solution heat treatment and artificial aging, resulting in a high-strength condition that is perfect for precision machining. Each plate is supplied with a mill finish, which provides a uniform, slightly textured surface suitable for further processing or direct use in many applications. Whether you are manufacturing components for aerospace, automotive, marine, or general engineering, this aluminum plate delivers reliable performance and cost-effectiveness.
Key Features & Technical Specifications
- Material: 6061-T6 Aluminum Alloy – high strength, good machinability, excellent corrosion resistance.
- Thickness: 1/4 inch (6.35 mm) – consistent and exact, ideal for precision machining.
- Standard: ASTM B209 – ensures compliance with international quality requirements.
- Surface Finish: Mill Finish – smooth, uniform appearance suitable for painting, anodizing, or direct use.
- Temper: T6 – provides maximum strength while maintaining good formability.
- Customizable Dimensions: Width and length can be tailored to your specific needs (available upon request).
- Applications: Precision machining parts, jigs and fixtures, structural components, automotive frames, aerospace fittings, marine hardware, and more.
Mechanical & Physical Properties (Typical Values)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 310 | MPa |
| Yield Strength (0.2% offset) | ≥ 276 | MPa |
| Elongation | 10 – 12 | % |
| Hardness (Brinell) | 95 | HB |
| Density | 2.70 | g/cm³ |
| Thermal Conductivity | 167 | W/m·K |
Advantages for Precision Machining
The 6061 T6 alloy is one of the most popular choices for CNC machining and other precision fabrication processes. Its excellent machinability allows for high cutting speeds, fine surface finishes, and tight tolerances. The consistent grain structure and low residual stress of our plates minimize warping during machining, ensuring dimensional stability. Additionally, the material's good corrosion resistance reduces the need for protective coatings in many applications, saving both time and cost. By choosing Hemaokang Steel's aluminum plate, you benefit from a product that has been carefully inspected for flatness, thickness uniformity, and surface quality, directly contributing to higher yields and fewer rejects in your production line.
Why Choose Hemaokang Steel?
As a newly established yet rapidly growing company, Hemaokang Steel (Shandong) Co., Ltd. has already achieved an impressive annual export value of US$50 million to US$100 million. Our team of 51–100 experienced professionals ensures that every order is processed efficiently and meets the highest quality standards. We hold ISO9001 certification, reflecting our commitment to continuous improvement and customer satisfaction. Our products are shipped to major markets worldwide, including North America, South America, Europe, Asia, Africa, and Oceania. With a strong supply chain and flexible production capabilities, we can accommodate both small and large volume orders, with customized dimensions available upon request. When you purchase from Hemaokang, you are not just buying aluminum plate – you are investing in reliability, precision, and long-term partnership.
We invite you to contact us for a quote or technical consultation. Our team is ready to assist you with product selection, cutting services, and logistics support. Experience the difference that quality and service make – choose Hemaokang Steel for your next precision machining project.
Frequently Asked Questions (FAQ)
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What is the difference between 6061 and 6061 T6 aluminum plate?
6061 refers to the alloy composition, while T6 indicates the temper (heat treatment condition). T6 provides higher strength than the as-fabricated (O) or T4 temper. Our product is specifically 6061 T6, ensuring maximum mechanical properties suitable for precision machining. -
Can you provide custom sizes or cut-to-length service?
Yes, we offer customizable dimensions such as width and length. Please contact us with your specific requirements, and we will provide a tailored solution. -
Is this aluminum plate suitable for welding?
Yes, 6061 T6 has good weldability. However, welding may reduce strength in the heat-affected zone. Post-weld heat treatment (T6) can restore properties if required. Consult our technical team for application-specific advice. -
What surface finish options are available?
Standard is mill finish. We can also supply with other finishes (e.g., brushed, polished, anodized) upon request. Please inquire for availability and lead times. -
How do you ensure thickness tolerance and flatness?
Our plates are manufactured in accordance with ASTM B209, which specifies strict tolerances. We also perform in-house inspections using calibrated instruments to guarantee compliance. Typical thickness tolerance for 1/4 inch plate is ±0.005 inches. -
What is the minimum order quantity (MOQ)?
Our MOQ is flexible. For standard sizes, it can be as low as one sheet. For custom dimensions, we may require a minimum quantity depending on the complexity. Contact us for details. -
Do you have any certifications besides ISO9001?
We currently hold ISO9001 certification. Additional certifications such as CE or ABS may be available upon request for specific orders. Please check with our sales team for your requirements. -
How long does shipping usually take?
Depending on the destination and order size, typical lead time is 15–30 days after order confirmation. Express shipping options are available for urgent orders. We work with reliable logistics partners to ensure timely delivery worldwide.
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