2A12 aluminum rod is a high-strength 2000 series alloy with good spot welding performance and good machinability after cold working, but poor corrosion resistance. It usually needs to be anodized or aluminum-clad to enhance its corrosion resistance.
The stock dimensions of the 2A12 aluminum bar
Mastar offers a wide range of stock dimensions for 2A12 aluminum bars, typically with a length of 6m. If your ideal size is not available or if you need a custom solution, please contact us for professional assistance.
| Alloy | Teper | OD(mm) | Length(m) | OD(inch) | Length(inch) |
| 2A12 aluminum bar | T351 | 24mm | 4m | 0.94" | 157.48" |
| 2A12 aluminum bar | T351 | 30mm | 4m | 1.18" | 157.48" |
| 2A12 aluminum bar | T351 | 145mm | 4m | 5.71" | 157.48" |
| 2A12 aluminum bar | H112 | 100mm | 3.6m | 3.94" | 141.73" |
| 2A12 aluminum bar | H112 | 110mm | 4m | 4.33" | 157.48" |
| 2A12 aluminum bar | H112 | 120mm | 4.1m | 4.72" | 161.42" |
| 2A12 aluminum bar | H112 | 130mm | 6m | 5.12" | 236.22" |
| 2A12 aluminum bar | H112 | 140mm | 6m | 5.51" | 236.22" |
| 2A12 aluminum bar | H112 | 150mm | 6m | 5.91" | 236.22" |
| 2A12 aluminum bar | H112 | 160mm | 6m | 6.3" | 236.22" |
| 2A12 aluminum bar | H112 | 170mm | 6m | 6.69" | 236.22" |
| 2A12 aluminum bar | H112 | 190mm | 6m | 7.48" | 236.22" |
| 2A12 aluminum bar | H112 | 200mm | 6m | 7.87" | 236.22" |
| 2A12 aluminum bar | H112 | 210mm | 6m | 8.27" | 236.22" |
| 2A12 aluminum bar | H112 | 220mm | 3.98m | 8.66" | 156.69" |
| 2A12 aluminum bar | H112 | 240mm | 6m | 9.45" | 236.22" |
| 2A12 aluminum bar | H112 | 250mm | 6m | 9.84" | 236.22" |
| 2A12 aluminum bar | T4 | 20mm | 6m | 0.79" | 236.22" |
| 2A12 aluminum bar | T4 | 25mm | 6m | 0.98" | 236.22" |
| 2A12 aluminum bar | T4 | 26mm | 3.5m | 1.02" | 137.8" |
| 2A12 aluminum bar | T4 | 26mm | 3.8m | 1.02" | 149.61" |
| 2A12 aluminum bar | T4 | 26mm | 4m | 1.02" | 157.48" |
| 2A12 aluminum bar | T4 | 28mm | 4m | 1.1" | 157.48" |
| 2A12 aluminum bar | T4 | 28mm | 3.5m | 1.1" | 137.8" |
| 2A12 aluminum bar | T4 | 30mm | 6m | 1.18" | 236.22" |
| 2A12 aluminum bar | T4 | 32mm | 6m | 1.26" | 236.22" |
| 2A12 aluminum bar | T4 | 35mm | 6m | 1.38" | 236.22" |
| 2A12 aluminum bar | T4 | 36mm | 4m | 1.42" | 157.48" |
| 2A12 aluminum bar | T4 | 36mm | 3.5m | 1.42" | 137.8" |
| 2A12 aluminum bar | T4 | 36mm | 6m | 1.42" | 236.22" |
| 2A12 aluminum bar | T4 | 38mm | 3.8m | 1.5" | 149.61" |
| 2A12 aluminum bar | T4 | 38mm | 6m | 1.5" | 236.22" |
| 2A12 aluminum bar | T4 | 40mm | 3.5m | 1.57" | 137.8" |
| 2A12 aluminum bar | T4 | 40mm | 6m | 1.57" | 236.22" |
| 2A12 aluminum bar | T4 | 42mm | 3.7m | 1.65" | 145.67" |
| 2A12 aluminum bar | T4 | 42mm | 3m | 1.65" | 118.11" |
| 2A12 aluminum bar | T4 | 42mm | 6m | 1.65" | 236.22" |
| 2A12 aluminum bar | T4 | 42mm | 3.46m | 1.65" | 136.22" |
| 2A12 aluminum bar | T4 | 45mm | 3.7m | 1.77" | 145.67" |
| 2A12 aluminum bar | T4 | 45mm | 6m | 1.77" | 236.22" |
| 2A12 aluminum bar | T4 | 45mm | 3m | 1.77" | 118.11" |
| 2A12 aluminum bar | T4 | 48mm | 6m | 1.89" | 236.22" |
| 2A12 aluminum bar | T4 | 50mm | 6m | 1.97" | 236.22" |
| 2A12 aluminum bar | T4 | 55mm | 3m | 2.17" | 118.11" |
| 2A12 aluminum bar | T4 | 55mm | 6m | 2.17" | 236.22" |
| 2A12 aluminum bar | T4 | 60mm | 6m | 2.36" | 236.22" |
| 2A12 aluminum bar | T4 | 65mm | 6m | 2.56" | 236.22" |
| 2A12 aluminum bar | T4 | 70mm | 6m | 2.76" | 236.22" |
| 2A12 aluminum bar | T4 | 75mm | 3m | 2.95" | 118.11" |
| 2A12 aluminum bar | T4 | 75mm | 4.4m | 2.95" | 173.23" |
| 2A12 aluminum bar | T4 | 77mm | 4m | 3.03" | 157.48" |
| 2A12 aluminum bar | T4 | 85mm | 3m | 3.35" | 118.11" |
| 2A12 aluminum bar | T4 | 85mm | 4.1m | 3.35" | 161.42" |
| 2A12 aluminum bar | T4 | 90mm | 6m | 3.54" | 236.22" |
| 2A12 aluminum bar | T4 | 90mm | 4m | 3.54" | 157.48" |
| 2A12 aluminum bar | T4 | 95mm | 4m | 3.74" | 157.48" |
| 2A12 aluminum bar | T4 | 95mm | 6m | 3.74" | 236.22" |
| 2A12 aluminum bar | T4 | 95mm | 3.9m | 3.74" | 153.54" |
| 2A12 aluminum bar | T4 | 100mm | 4.3m | 3.94" | 169.29" |
| 2A12 aluminum bar | T4 | 105mm | 4m | 4.13" | 157.48" |
| 2A12 aluminum bar | T4 | 105mm | 2.8m | 4.13" | 110.24" |
| 2A12 aluminum bar | T4 | 105mm | 6m | 4.13" | 236.22" |
| 2A12 aluminum bar | T4 | 105mm | 4.1m | 4.13" | 161.42" |
| 2A12 aluminum bar | T4 | 115mm | 4.1m | 4.53" | 161.42" |
| 2A12 aluminum bar | T4 | 115mm | 6m | 4.53" | 236.22" |
| 2A12 aluminum bar | T4 | 120mm | 4.7m | 4.72" | 185.04" |
| 2A12 aluminum bar | T4 | 120mm | 6m | 4.72" | 236.22" |
| 2A12 aluminum bar | T4 | 125mm | 4.9m | 4.92" | 192.91" |
| 2A12 aluminum bar | T4 | 125mm | 3m | 4.92" | 118.11" |
| 2A12 aluminum bar | T4 | 130mm | 6m | 5.12" | 236.22" |
| 2A12 aluminum bar | T4 | 130mm | 4m | 5.12" | 157.48" |
| 2A12 aluminum bar | T4 | 130mm | 4.1m | 5.12" | 161.42" |
| 2A12 aluminum bar | T4 | 135mm | 6m | 5.31" | 236.22" |
| 2A12 aluminum bar | T4 | 135mm | 2.8m | 5.31" | 110.24" |
| 2A12 aluminum bar | T4 | 140mm | 5.8m | 5.51" | 228.35" |
| 2A12 aluminum bar | T4 | 140mm | 3.4m | 5.51" | 133.86" |
| 2A12 aluminum bar | T4 | 140mm | 6m | 5.51" | 236.22" |
| 2A12 aluminum bar | T4 | 140mm | 3.6m | 5.51" | 141.73" |
| 2A12 aluminum bar | T4 | 145mm | 3m | 5.71" | 118.11" |
| 2A12 aluminum bar | T4 | 145mm | 2.4m | 5.71" | 94.49" |
| 2A12 aluminum bar | T4 | 145mm | 2.5m | 5.71" | 98.43" |
| 2A12 aluminum bar | T4 | 145mm | 3.5m | 5.71" | 137.8" |
| 2A12 aluminum bar | T4 | 145mm | 6m | 5.71" | 236.22" |
| 2A12 aluminum bar | T4 | 150mm | 6m | 5.91" | 236.22" |
| 2A12 aluminum bar | T4 | 155mm | 3m | 6.1" | 118.11" |
| 2A12 aluminum bar | T4 | 165mm | 6m | 6.5" | 236.22" |
| 2A12 aluminum bar | T4 | 170mm | 5.7m | 6.69" | 224.41" |
| 2A12 aluminum bar | T4 | 170mm | 6m | 6.69" | 236.22" |
| 2A12 aluminum bar | T4 | 175mm | 2.8m | 6.89" | 110.24" |
| 2A12 aluminum bar | T4 | 175mm | 6m | 6.89" | 236.22" |
| 2A12 aluminum bar | T4 | 180mm | 6m | 7.09" | 236.22" |
| 2A12 aluminum bar | T4 | 185mm | 2.8m | 7.28" | 110.24" |
| 2A12 aluminum bar | T4 | 185mm | 3.5m | 7.28" | 137.8" |
| 2A12 aluminum bar | T4 | 190mm | 3m | 7.48" | 118.11" |
| 2A12 aluminum bar | T4 | 190mm | 4.6m | 7.48" | 181.1" |
| 2A12 aluminum bar | T4 | 190mm | 2.6m | 7.48" | 102.36" |
| 2A12 aluminum bar | T4 | 190mm | 6m | 7.48" | 236.22" |
| 2A12 aluminum bar | T4 | 200mm | 3m | 7.87" | 118.11" |
| 2A12 aluminum bar | T4 | 200mm | 4.9m | 7.87" | 192.91" |
| 2A12 aluminum bar | T4 | 200mm | 4.3m | 7.87" | 169.29" |
| 2A12 aluminum bar | T4 | 210mm | 6m | 8.27" | 236.22" |
| 2A12 aluminum bar | T4 | 210mm | 3.8m | 8.27" | 149.61" |
| 2A12 aluminum bar | T4 | 220mm | 6m | 8.66" | 236.22" |
| 2A12 aluminum bar | T4 | 230mm | 6m | 9.06" | 236.22" |
| 2A12 aluminum bar | T4 | 250mm | 6m | 9.84" | 236.22" |
| 2A12 aluminum bar | T4 | 250mm | 2.8m | 9.84" | 110.24" |
| 2A12 aluminum bar | T4 | 260mm | 6m | 10.24" | 236.22" |
| 2A12 aluminum bar | T4 | 260mm | 2.95m | 10.24" | 116.14" |
| 2A12 aluminum bar | T4 | 280mm | 6m | 11.02" | 236.22" |
| 2A12 aluminum bar | T4 | 290mm | 6m | 11.42" | 236.22" |
| 2A12 aluminum bar | T4 | 290mm | 2.1m | 11.42" | 82.68" |
| 2A12 aluminum bar | T4 | 300mm | 1.7m | 11.81" | 66.93" |
| 2A12 aluminum bar | T4 | 300mm | 2m | 11.81" | 78.74" |
| 2A12 aluminum bar | T4 | 300mm | 1.65m | 11.81" | 64.96" |
| 2A12 aluminum bar | T4 | 300mm | 1.84m | 11.81" | 72.44" |
| 2A12 aluminum bar | T4 | 300mm | 6m | 11.81" | 236.22" |
| 2A12 aluminum bar | T4 | 320mm | 1.4m | 12.6" | 55.12" |
| 2A12 aluminum bar | T4 | 320mm | 1.7m | 12.6" | 66.93" |
| 2A12 aluminum bar | T4 | 320mm | 6m | 12.6" | 236.22" |
| 2A12 aluminum bar | T4 | 330mm | 1.5m | 12.99" | 59.06" |
| 2A12 aluminum bar | T4 | 330mm | 6m | 12.99" | 236.22" |
| 2A12 aluminum bar | T4 | 350mm | 1.4m | 13.78" | 55.12" |
| 2A12 aluminum bar | T4 | 350mm | 1.3m | 13.78" | 51.18" |
| 2A12 aluminum bar | T4 | 350mm | 1.37m | 13.78" | 53.94" |
| 2A12 aluminum bar | T4 | 350mm | 6m | 13.78" | 236.22" |
Click to see all 
Click to collapseIn addition to 2A12 aluminum bars, Mastar also supplies 2A12 aluminum bar in a variety of shapes including round bars, square bars, and flat bars, suitable for different machining and structural needs. We also offer 2A12 aluminum tubes for applications requiring high strength with better formability and lightweight performance.
If you are looking for alternative aluminum alloys with similar machinability or mechanical strength, feel free to explore our full range of aluminum bar products, or contact our team for personalized recommendations. Quick Quote
The 2A12 aluminum bar adheres to strict tolerance specifications
All 2A12 aluminum bars from Mastar strictly adhere to the EN 754-7 standard for tolerances, ensuring manufacturing precision.
| Diameter(mm) | Tolerance(mm) |
| 8 - 18 | ± 0.30 |
| 18 - 25 | ± 0.35 |
| 25 - 40 | ± 0.40 |
| 40 - 50 | ± 0.45 |
| 50 - 65 | ± 0.50 |
| 65 - 80 | ± 0.70 |
| 80 - 100 | ± 0.90 |
| 100 - 120 | ± 1,0 |
| 120 - 150 | ±1.2 |
| 150 - 180 | ±1.4 |
| 180 - 220 | ± 1.7 |
| 220 - 270 | ± 2,0 |
| 270 - 320 | ± 2.5 |
Characteristics of 2A12 aluminum bar
- High-strength hard aluminum: The 2A12 aluminum bar belongs to high-strength hard aluminum and can be strengthened through heat treatment.
- Good spot welding performance: Suitable for spot welding, but prone to cracking during gas welding or TIG welding.
- Fair cutting performance after cold processing: Exhibits good machinability after work hardening.
- Poor corrosion resistance: Its inherent corrosion resistance is weak, often requiring anodizing, painting, or a surface aluminum cladding to enhance corrosion resistance.
Applications of 2A12 aluminum bar
The 2A12 aluminum bar is mainly used for manufacturing various high-load parts and components (excluding stamped and forged parts) for applications below 150°C, as detailed below:
- Aircraft frame parts
- Skin
- Bulkheads
- Wing ribs
- Wing beams
- Rivets
Comparison of 2A12 aluminum vs. 2024 aluminum alloy
Strength: The strength of 2024 aluminum bars is generally slightly higher than that of 2A12, especially after heat treatment.
Welding performance: 2A12 has good spot welding performance but is prone to cracking during gas and TIG welding; 2024 has poorer weldability and is not recommended for welding.
Corrosion resistance: Both have weak corrosion resistance, but 2024 typically exhibits lower resistance, making it more susceptible to corrosion in harsh environments.
Machining performance: 2A12 offers good machinability after cold processing, while 2024 excels in machinability, particularly in machining applications.
Application fields: 2A12 is commonly used for aircraft structural components and other medium-strength parts, while 2024 is mainly used for high-strength components and frame structures in aerospace applications.
What services can Mastar provide for you?
As a professional supplier of 2A12 aluminum bars, Mastar is committed to a customer-centric approach, continuously providing high-quality products. We offer the following services:
Customized production: We provide various specifications and sizes of 2A12 aluminum bars, along with surface treatment services, to meet specific application requirements.
Fast delivery: With a rich inventory, we ensure timely delivery to meet your production schedule.
Tailored solutions: We offer personalized solutions for different application areas and project needs to help customers achieve optimal results.
Long-term partnership discounts: We provide favorable prices and flexible payment options for long-term partners to reduce procurement costs and enhance competitiveness.
Market trend consulting: We regularly share the latest market trends and technological updates in the aluminum industry to help customers stay informed and optimize their purchasing decisions.
