Aluminum tube is a non-ferrous metal tube, which refers to a hollow metal tubular material made of pure aluminum or aluminum alloy extruded along its longitudinal length. It is a high-strength duralumin that can be strengthened by heat treatment, has moderate plasticity in annealing, hardening and hot state, and has good spot weldability. In the process of gas welding and argon arc welding, aluminum tube is easy to form intergranular cracks. The machinability of aluminum tube is good after quenching and cold hardening, but poor in annealed state. Corrosion resistance is not high, often using anodic oxidation treatment and spray painting or surface coating aluminum layer to improve corrosion resistance.

Aluminum pipe is a kind of non-ferrous metal pipe, refers to the pure aluminum or aluminum alloy extruded into a hollow metal tubular material along its longitudinal length, is a kind of high-strength duralumin, can be strengthened by heat treatment, in annealing, hardening and hot state plasticity medium, spot welding weldability is good, with gas welding and argon arc welding aluminum pipe has a tendency to form intergranular cracks. Aluminum has good plasticity and processing properties, convenient for bending, stretching, cutting, etc., aluminum alloy aluminum tube has high strength.

Jinan Zunkai Materials Co., Ltd belongs to the Jinan Zunkai Group. Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300, 000 tons steel.

Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Rizhao Steel, Laiwu Steel, Handan Iron and Steel, Anyang Iron and Steel, Maanshan Iron and Steel and other domestic large steel companies. Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel manufacturing factory, and our stock always no less than 10, 000 tons.

Zunkai regards moral integrity as fundamental, relying on advantages of resources, we will ensure the most reliable quality and very good prices.

Looking forward to be the best partner of different clients!

In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation.  Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports.  We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.