An 1100-H14 aluminum seamless drawn tube is a strain-hardened pure aluminum tube produced through a cold drawing process. It offers significantly better strength, tighter tolerances, and a smoother surface compared to standard extruded or fully annealed (O temper) tubes.
In this guide, we will break down exactly what makes this specific material so reliable, how we make it, and when you should use it for your projects.
What is 1100-H14 Aluminum Pipe?
To understand the product, we first need to break down the grade and the temper.
- 1100 Aluminum: This is known as commercially pure aluminum. It contains at least 99.0% pure aluminum. Because it has almost no alloying elements (like copper or zinc), it offers incredible corrosion resistance, excellent electrical conductivity, and high ductility.
- H14 Temper: You cannot strengthen pure aluminum with heat. Instead, factories use cold working. "H14" means the metal is strain-hardened to a "half-hard" state.
The Result: 1100-H14 gives you the perfect balance. It is noticeably stronger than the fully soft "O" temper, meaning the pipe won't collapse easily, but it is still ductile enough to be bent into shapes without cracking (unlike the brittle H18 full-hard temper).
How We Make 1100 Aluminum Drawn Tube
Why is a "drawn tube" so special? The magic is in the manufacturing process.
- Initial Extrusion: We start by heating a solid aluminum billet and pushing it through a die to create a basic, seamless hollow tube.
- Cold Drawing: This is the critical step. After the tube cools, we pull (draw) it through a smaller precision die at room temperature. A plug is placed inside the tube to control the inside diameter (ID).
- Size Reduction & Forming: As the metal is pulled through the die, its outer diameter (OD) and wall thickness are reduced to exact measurements. The physical pulling action compresses the metal grains, which achieves the H14 strain-hardened temper and creates a perfectly smooth finish.
1100-H14 Drawn Tube vs Extruded Tube
Buyers often ask us if they really need to pay the extra cost for a drawn tube when an extruded tube is cheaper. Here is the engineering reality:
| Feature | Seamless Drawn Tube | Standard Extruded Tube |
| Dimensional Precision | Very High (Perfect for tight fittings) | Medium (Standard industrial tolerance) |
| Surface Finish | Very Smooth (Inside and Outside) | Rougher (May have minor extrusion lines) |
| Wall Thickness | Highly uniform | May have slight variations |
| Overall Strength | Higher (Due to cold drawing) | Lower (Unless specifically strain-hardened) |
Send your CAD drawings to GNEE. Our engineers will evaluate your application and recommend the most cost-effective manufacturing process. Contact us for a free review.
Mechanical Properties of 1100-H14 Aluminum Tubing
Because of the cold drawing process, the 1100-H14 tube is significantly stronger than its soft, annealed counterpart. Here are the typical mechanical values:
| Property | Typical Value for 1100-H14 |
| Tensile Strength | ~ 90 – 110 MPa |
| Yield Strength | ~ 35 – 50 MPa |
| Elongation | ≥ 10% |
Supplier's Note: Compared to an 1100-O (annealed) tube, the H14 temper boosts the overall strength by about 30% to 50%. This means the tube will hold its shape better during transport, installation, and operation.
Core Advantages of 1100 Seamless Aluminum Pipe
- No Weld Seams: Because it is seamless, there is no weak point running down the length of the pipe. It will not split open under moderate internal pressure.
- High Dimensional Accuracy: The cold drawing process ensures the OD and ID are exact, making it perfect for CNC machining or tight-tolerance assemblies.
- Maximum Corrosion Resistance: The 99% pure aluminum handles harsh weather and chemicals easily.
- Smooth Internal Surface: The internal plug used during drawing makes the inside of the tube mirror-smooth, which prevents fluid friction and bacteria buildup.
- Good Formability: It is half-hard, which means you can still bend it using proper tube-bending equipment without tearing the metal.
Common Uses for 1100-H14 Aluminum Round Tube
Industrial Applications:
- Heat Exchangers: The smooth internal surface and high thermal conductivity make it perfect for cooling systems.
- Precision Tubing Systems: Used in pneumatic lines where tight fittings are required.
- HVAC Lines: Easy to bend into coils for air conditioning units.
- Chemical Transport: Safe for moving mild chemicals that would corrode steel.
Aerospace Applications (Non-Structural):
- Low-Pressure Fluid Lines: Moving oil or fuel where pressure is low but corrosion resistance is critical.
- Ducting: Guiding cabin air inside the aircraft.
- Insulation Structures: Acting as a sleeve for sensitive wiring.
Standards for 1100 Aluminum Extruded Tube and Drawn Tube
To ensure you get exactly what you need, your wholesale 1100 seamless aluminum pipe should always be manufactured to international standards. At GNEE, we follow these strict guidelines:
- ASTM B241 / B241M: Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube.
- ASTM B210: Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes (This is the most critical standard for drawn tubes).
- ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Tubes.
We also manufacture custom sizes based on your specific ID/OD requirements, far beyond standard catalog sizes.
1100-H14 Tube vs Other Aluminum Alloys
To make sure 1100-H14 is the right choice, let's compare it to other tubes commonly found in the market.
| Alloy & Temper | Strength Level | Best Application |
| 1100-H14 | Low-Medium | Precision fluid lines, high corrosion areas, extreme bending. |
| 3003-H14 | Medium | General industry, HVAC, slightly higher pressure than 1100. |
| 5052-O | Medium-High | Marine applications, higher pressure hydraulic lines. |
| 6061-T6 | High | Structural frames, high-stress scaffolding, heavy machinery. |
The rule is simple: If you need to build a structural frame, buy 6061. If you need a highly precise, highly corrosion-resistant pipe for fluid or gas, buy a drawn 1100-H14 tube.
Conclusion
In summary, an 1100-H14 aluminum seamless drawn tube is a highly specialized product. By utilizing the cold-drawing process, it transforms soft, commercially pure aluminum into a precision-engineered tube with exact tolerances, a mirror-smooth surface, and dependable half-hard strength. It is the ultimate choice for heat exchangers, precision industrial lines, and non-structural aerospace components.
Why Choose GNEE as Your Aluminum Tube Supplier?
When buying precision tubes, working with an experienced manufacturer saves you from costly assembly errors and leaks. As a leading 1100 aluminum drawn tube supplier, GNEE provides top-tier metal solutions to global buyers.
- Seamless & Drawn Tube Expertise: We own advanced cold-drawing machinery that guarantees perfect concentricity and smooth surfaces on every single tube.
- Wide Range of Alloys: From pure 1100 to structural 6061 and aerospace 7075, we supply the exact grade you need.
- Custom Sizes and Tolerances: We produce tubes tailored to your specific Outer Diameter, Inner Diameter, and Wall Thickness.
- Full Certification: Every order comes with a complete Mill Test Certificate (MTC) proving full compliance with ASTM and EN standards.
- Global Export: With years of international trade experience, we ensure fast delivery and safe, rust-free packaging.
Stop struggling with poor-quality extruded tubes that ruin your final product.
Upgrade to precision drawn tubes today. Contact GNEE for the latest 1100 aluminum pipe price and let us provide a custom solution tailored to your exact manufacturing requirements.
