The 6061 O/T6/T4/T3511 Marine grade aluminum square bar produced by Chalco adopts a strict quality and environmental management system, and has passed ISO 9001 and ISO 14001 certification, and ISO 12215-5:2019 certification.
Chalco Aluminum has served many well-known shipyards, has DNV, NK, CCS, ABS, BV, LR, KR and other marine aluminum plate certifications, and can supply materials that meet international shipbuilding standards and meet ASTM B928/B928M-15, ASTM B928/B928M- 21 production standards.
6061 marine grade aluminum square bar specification
| Alloy | Temper | Maximum inscribed circle diameter |
| 6061 | T4, T3511, T6, T8511 | 120 mm |
| Other | 200 mm |
6061 Marine grade aluminum square bar size deviation
| Square bar width (or side length) | Corresponding width or side length tolerance |
| 10.00-18.00 | ±0.22 |
| >18.00-25.00 | ±0.25 |
| >25.00-40.00 | ±0.30 |
| >40.00-50.00 | ±0.35 |
| >50.00-65.00 | ±0.40 |
| >65.00-80.00 | ±0.45 |
| >80.00-100.00 | ±0.55 |
| >100.00-120.00 | ±0.65 |
| >120.00-150.00 | ±0.80 |
| >150.00-180.00 | ±1.00 |
| >180.00-220.00 | ±1.15 |
| Square bar width (or side length) | The allowable deviation of the fillet (or chamfer) corresponding to the width (or side length) of the square bar |
| 10.00-25.00 | ≤1.0 |
| >25.00-50.00 | ≤1.5 |
| >50.00-80.00 | ≤2.0 |
| >80.00-120.00 | ≤2.5 |
| >120.00-180.00 | ≤2.5 |
| >180.00-220.00 | ≤3.5 |
| Square bar width (or side length) | Angular deviation corresponding to width (or side length) |
| 10.00-100.00 | ≤0.01×width |
| >100.00-180.00 | ≤1.0 |
| >180.00-220.00 | ≤1.5 |
| Square bar width (or side length) | Curvature h on any 300mm length of square bar | Curvature h on the full length of the square bar (L meters) |
| 10.00-80.00 | ≤0.8 | ≤2×L |
| >80.00-120.00 | ≤1.0 | ≤2×L |
| >120.00-220.00 | ≤1.5 | ≤3×L |
| Width (or side length) | Twist degree of any 1000mm length of square bar | Twist over the full length of the square bar |
| 10.00-30.00 | ≤1 | ≤3 |
| >30.00-50.00 | ≤1.5 | ≤4 |
| >50.00-120.00 | ≤2 | ≤5 |
| >120.00-220.00 | ≤3 | ≤6 |
| Square rod width (or side length) | Permissible deviations in the following lengths on square rods of fixed length | ||
| ≤2000 | >2000-5000 | >5000 | |
| 10.00-100.00 | +5 | +7 | +10 |
| 0 | 0 | 0 | |
| >100.00-200.00 | +7 | +9 | +12 |
| 0 | 0 | 0 | |
| >200.00-220.00 | +8 | +11 | +14 |
| 0 | 0 | 0 | |
Different vessel sizes, types and uses may require different 6061 Marine grade aluminum square bar sizes and shapes. To ensure proper size and quality, it is recommended to contact Chlaco aluminum premium marine aluminum square bar suppliers for detailed consultation and negotiation to determine the most suitable marine aluminum square bar size for a particular marine project.
6061 marine aluminum square bar composition limits
| Weight% | Alloy 6061 | |
| Si | 0.4-0.8 | |
| Fe | 0.7 | |
| Cu | 0.15-0.4 | |
| Mn | 0.15 | |
| Mg | 0.8-1.2 | |
| Zn | 0.25 | |
| Ti | 0.15 | |
| Cr | 0.04-0.35 | |
| Others | each | 0.05 |
| total | 0.15 | |
| Al | Bal | |
6061 Marine aluminum square bar mechanical properties
| Alloy | Temper | Sample temper | Thickness ｍｍ | Tensile strength RmMPa RｍMPa | Specified non-proportional extension strength Rp0.2 Mpa Rp0.2 Mpa | Elongation after break% | |
| A50 ｍｍ | A | ||||||
| 6061 | O | O | ≤150.00 | ≤150 | ≤110 | 16 | 14 |
| T4 | T4 | ≤150.00 | 180 | 110 | 15 | 13 | |
| T6/T8511 | T6/T8511 | ≤150.00 | 260 | 240 | 8 | 6 | |
| T3511 | T3511 | ≤150.00 | 270-310 | 200-260 | 12%-18% | 12% | |
Application of 6061 aluminum square bar in shipbuilding
Structural support: 6061 aluminum alloy square bars can be used to construct the structural support parts of the hull, such as masts, beams, longitudinal beams, frames, etc. They provide the stability and strength of the hull and are able to withstand various forces and loads.
Ship equipment bracket: square rods can be used to make equipment brackets on ships, such as installation support structures for navigation equipment, communication equipment, and lamps. The light weight and good strength properties of aluminum square bars make them an ideal choice.
Protective devices: 6061 aluminum alloy square bars can also be used to make protective devices for ships, such as guardrails, handrails and railings.
Ship interior decoration: 6061 square rods can be used for interior decoration and decoration of ships, such as making cabin guardrails, handrails, stair handrails, etc. Aluminum alloy square rod has good corrosion resistance and appearance performance, and can provide beautiful decorative effect.
Ship hatches and door and window frames: 6061 square rods can be used to make ship hatches and door and window frames. Due to the high strength and corrosion resistance of the aluminum alloy square rod, it can provide good stability and durability in harsh marine environments.
Marine equipment installation: 6061 square rods can be used to install various marine equipment, such as marine electrical appliances, piping systems, etc. They act as a support structure, ensuring the stability and safety of the equipment.
It should be noted that specific applications will be affected by ship design, requirements and specifications, and different ship types and uses may have different application methods and requirements. Therefore, in practical applications, it is necessary to design and select appropriate materials and specifications according to specific conditions.
6061 marine aluminum square bar price
6061 marine aluminum alloy square bar price:
(LME ingot price + processing fee) × weight + packaging fee + transportation fee
The price of 6061 marine aluminum alloy square bar is affected by many factors such as market supply and demand, raw material prices, processing costs, and specifications. Different manufacturers and suppliers may have different pricing strategies and price levels. In addition, it is also affected by factors such as currency exchange rates and the international economic situation.
Therefore, please contact Chinalco for an inquiry, we will provide you with the best quotation and service.
Precautions for purchasing 6061 marine aluminum square rod
Material certification: make sure that the purchased 6061 aluminum alloy square bar meets the relevant international or regional material certification standards, such as ASTM (American Society for Testing and Materials) or EN (European Standard), etc. This ensures that the quality and performance of the material is as required.
Specifications and dimensions: according to actual needs, select 6061 aluminum alloy square bars with appropriate specifications and dimensions. Consider the requirements of the marine application, such as required strength, length and section size, etc.
Quality inspection: quality inspection is carried out before purchase to ensure that the aluminum alloy square rod has no obvious defects, such as cracks, looseness, etc. Suppliers may be required to provide relevant quality certificates or test reports.
Supplier reputation: choose a reputable supplier or dealer to purchase to ensure that the purchased 6061 aluminum alloy square rod is regular and reliable.
Price comparison: conduct price comparisons among multiple suppliers, but not only with price as the only criterion, but also factors such as quality, delivery time and service.
Shipping and packaging: make sure that the supplier can provide safe and reliable shipping and packaging services to prevent materials from being damaged during transportation.
Consult a professional: if you have any questions or need more detailed information about purchasing 6061 aluminum alloy square rods, you can consult a professional, such as a material engineer or the supplier's technical support team, for accurate advice and guidance.
