1100 H112 Seamless Aluminum Pipe
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1100 H112 seamless aluminum pipe is a commercially pure aluminum product with a minimum aluminum content of 99.0%. It is widely recognized for its high corrosion resistance, excellent thermal conductivity, and superior formability. Because it is manufactured through a seamless extrusion process, this pipe has no weld seams. This structural integrity makes it the standard choice for high-pressure fluid transfer, chemical processing, and heat exchange systems where leak prevention is mandatory.
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1100 H112 Seamless Aluminum Pipe Description
The 1100 grade belongs to the 1xxx series of aluminum. It contains at least 99.0% pure aluminum. It is a non-heat-treatable alloy, meaning it cannot be hardened by heat treatment. Instead, its strength is achieved and modified through cold working or strain hardening. Due to its purity, it offers the highest corrosion resistance among all aluminum alloys.
H112 is a specific temper designation. It indicates that the aluminum has been strain-hardened during working at elevated temperatures, such as during the extrusion process. The H112 temper ensures that the mechanical properties of the pipe remain stable. It offers a higher strength than the fully annealed O-temper while maintaining good ductility for further bending or forming.
Unlike welded tubes that are formed by rolling a flat sheet and welding the edges, a seamless aluminum pipe is extruded from a solid aluminum billet over a mandrel. There is no longitudinal weld seam. This means the pipe has uniform strength across its entire circumference. Seamless aluminum pipes handle higher internal pressure, have zero risk of weld-seam splitting, and perform much better in harsh corrosive environments.
Core Advantages of 1100 H112 Extruded Aluminum Tube
Excellent Corrosion Resistance
With 99% purity, this pipe naturally forms a dense oxide layer that protects it from chemical attacks. It is highly suitable for chemical processing plants, marine environments, and food industry equipment where contamination and oxidation must be avoided.
High Thermal Conductivity
1100 aluminum transfers heat rapidly. This makes the 1100 H112 seamless pipe a top choice for manufacturing heat exchangers, condensers, HVAC systems, and industrial cooling lines.
Good Electrical Conductivity
It offers an electrical conductivity of about 59% IACS. It is frequently used in electrical engineering, including heavy-duty busbars, electrical enclosures, and high-voltage transmission structures.
Superior Formability
The H112 temper provides an optimal balance of strength and flexibility. Buyers can easily perform secondary fabrication on this pipe, including tight-radius bending, flaring, expanding, and deep drawing without cracking the material.
Lightweight Material
Aluminum has a density of 2.71 g/cm3 , which is a third of steel. Using 1100 pure aluminum seamless tube significantly reduces the overall weight of equipment, leading to lower transportation costs and easier installation.
Chemical Composition of 1100 Pure Aluminum Pipe
The chemical makeup strictly follows EN 573 and ASTM standards to ensure maximum purity and consistent performance.
| Element | Content (%) |
| Aluminum (Al) | 99.0 Min |
| Silicon + Iron (Si + Fe) | 1.0 Max |
| Copper (Cu) | 0.05 - 0.20 |
| Zinc (Zn) | 0.10 Max |
| Manganese (Mn) | 0.05 Max |
| Others Each | 0.05 Max |
| Others Total | 0.15 Max |
Mechanical Properties of 1100-H112 Aluminum Seamless Pipe
The mechanical properties dictate how the pipe will behave under physical stress. The H112 temper provides reliable baseline strength for fluid and gas transport applications.
| Property | Typical Value |
| Tensile Strength | 90 - 110 MPa |
| Yield Strength | 35 MPa Min |
| Elongation | 15 - 25% |
| Density | 2.71 g/cm3 |
| Thermal Conductivity | 220 W/m.K |
| Electrical Conductivity | 59% IACS |
specification of 1100 H112 Seamless Pipe
| Item | Specification |
|---|---|
| Product Name | 1100 H112 Seamless Aluminum Pipe |
| Alloy Grade | 1100 |
| Temper | H112 |
| Product Type | Seamless Extruded Aluminum Pipe |
| Manufacturing Process | Hot Extrusion / Seamless Extrusion |
| Standard | ASTM B241 / ASTM B210 / GB/T 4437 / EN 755 |
| Shape | Round Pipe / Tube |
| Surface Finish | Mill Finish / Polished / Anodized / Brushed |
| Outer Diameter (OD) | 2 mm – 1000 mm |
| Inner Diameter (ID) | Customized |
| Wall Thickness | 0.5 mm – 50 mm |
| Length | 1000 mm – 6000 mm |
| Length Tolerance | ±1 mm to ±5 mm |
| Diameter Tolerance | According to ASTM B241 |
| Corrosion Resistance | Excellent |
| Weldability | Excellent |
| Formability | Excellent |
| Machinability | Fair |
| Heat Treatable | No |
| Operating Temperature | Up to approximately 150°C |
| Pipe End Type | Plain End / Beveled End / Threaded |
| Packaging | Wooden Case / Waterproof Paper / Export Standard |
| Certification | MTC EN 10204 3.1 / ISO / SGS |
| Delivery Time | 7 – 25 Days |
| Application | HVAC, Chemical Equipment, Heat Exchangers, Electrical Conductors, Food Equipment, Decorative Structures |
| Fabrication Services | Precision CNC Cutting, Pipe Bending, Flaring and Expanding, Welding and Beveling |
Manufacturing Process of 1100 Seamless Aluminum Tubing
Producing a true seamless pipe requires precise temperature control and heavy machinery. Our production process ensures zero defects and exact dimensional tolerances.
- Billet Preparation: High-purity 1100 aluminum logs are cast and cut into billets.
- Heating: The billet is heated to a specific plasticity temperature.
- Seamless Extrusion: The heated billet is forced through a die and over a piercing mandrel using a hydraulic press. This forms a continuous tube without any welds.
- Stretch Straightening: The extruded pipe is stretched slightly to ensure absolute straightness and relieve internal stress.
- Cutting: Pipes are cut to the standard 6 meters or the buyer's specified length.
- Inspection: Every batch undergoes dimensional checks and non-destructive testing.
- Packing: Pipes are cleaned, wrapped, and boxed for sea freight.
Industrial Applications of 1100 H112 Extruded Pipe
- Chemical Industry
Used for transporting low-corrosion chemicals, storing liquids, and processing equipment. The seamless nature prevents chemical leaks.
- HVAC and Cooling Systems
Used extensively in commercial air conditioning piping, cooling water loops, and refrigeration units due to its excellent heat transfer rate.
- Food and Beverage Processing
1100 aluminum is non-toxic and easy to clean. It is used in sanitary pipelines for dairy, brewing, and food processing plants.
- Electrical Industry
Utilized for tubular busbars, conductive structural frames, and protective housings for sensitive electrical wiring.
1100 H112 vs Other Aluminum Alloys
When purchasing aluminum pipe, selecting the right grade is critical to project success. Here is how 1100 H112 compares to other common aluminum pipe grades.
1100 H112 vs 3003 H14 Aluminum Pipe
3003 contains manganese, making it about 20% stronger than 1100. However, 1100 has superior thermal conductivity and better corrosion resistance. If structural strength is the priority, choose 3003. If heat transfer or chemical resistance is the priority, choose 1100.
1100 H112 vs 5052 H32 Aluminum Pipe
5052 is alloyed with magnesium, giving it much higher tensile strength and exceptional resistance to saltwater corrosion. 5052 is standard for marine applications. 1100 is softer, easier to form, and conducts electricity much better than 5052.
1100 vs 6061 T6 Aluminum Pipe
6061 is a structural alloy. It is heat-treatable and significantly stronger and harder than 1100. 6061 is used for building frames, scaffolding, and high-pressure hydraulics. 1100 is purely for low-pressure fluid transport, heat transfer, and applications requiring high formability.
Why Choose GNEE as Your 1100 Aluminum Pipe Supplier
GNEE operates a massive manufacturing and warehousing facility dedicated to industrial aluminum products. We do not just trade; we control the manufacturing process.
- Large Inventory: Standard OD and WT sizes are in stock for fast dispatch.
- Custom Extrusion: Low Minimum Order Quantity (MOQ) for non-standard pipe sizes.
- Export Expertise: Over 18 years of experience shipping to Europe, the Middle East, South America, and Southeast Asia.
- Full Traceability: Every shipment comes with complete material documentation.
Quality Inspection and Export Packaging
Every meter of 1100 H112 seamless aluminum pipe is tested before dispatch. Our quality control protocol includes Chemical Composition Analysis, Tensile Testing, Dimensional Measurement, and Eddy Current Testing (to detect hidden internal flaws).
Packaging:
We use export-standard wooden cases. The pipes are bundled, wrapped in waterproof plastic film, and secured with steel straps. Dessicants are placed inside the packaging to prevent moisture damage during ocean freight.
We stand behind our quality. Contact our sales team today to request a recent Mill Test Certificate (MTC) for our 1100 H112 pipes, or ask for a free sample to test the welding and bending performance in your own facility.
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