We are a professional manufacturer in steel structure, telecom tower, electric transmission line steel tower(angle steel tower and pipe steel tower 10KV-550KV), polygonal steel pipe/tube, street light pole and other welded steel products. We have mechanical physical laboratory, chemical laboratory, welding quality test laboratory to test our products' quality, meanwhile we strictly control every part's quality of the entire manufacturing process. Warmly welcome the friends from all over the world to cooperate with us.
Galvanized Polygonal Steel Pipe
Pipe Parameters:
1. Side: Generally we can produce 8, 10, 12, 14, 16, 18, 20 with our bending machine.
2. Length of the pipe: Below 14 meters one time, we have our 3200ton Bending Machine, and it can bend 14 meters at one time, so below 14meters, we can do it.
3. Thickness of the pipe: Generally 6mm, 8mm, 10mm, 14mm, 18mm, 20mm, 25mm, and other according to your request.
4. Fabrication Process: Cutting plate(with our plasma flame cutting machine)→bending(with our 3200ton bending machine)→joint→welding(submerged-arc welding)
5. After all fabrication process, pipes are delivered to galvanization
Details of Galvanizing:
1. Degreasing of tower parts with Sodium Hydroxide solution.
2. Pickling to clean up the surface with HCl solution
3. Rinsing twice with fresh water to remove the acid content.
4. Fluxing with synth flux to prepare surface for galvanizing.
5. Drying on hot plate.
6. Dipping in zinc bath with 99.95% pure zinc at 450° C to 465° C temperature.
7. Quenching in water.
8. Dichromating.
Thickness< 5mm, galvanization thickness≥ 460G/M² (65um)
Thickness> 5mm, galvanization thickness≥ 610G/M² (86um)
All our galvanizing zinc thickness is strictly tested before delivery in view of its importance for anticorrosion. FAQ:
1. Port of Loading: Qingdao, China
2. Price term: FOB, CIF. The price 950~1200USD/Ton(based on different material and production procedure)
3. Payment Term: 30%TT deposit in advance, 70%TT balance against B/L.
4. Time of delivery:as clients' request or contract
5. Manufacture products as clients' drawing
Established in 2006, Qingdao Sanchuan Power Equipment Co., Ltd. is a manufacturer which specializes in the research, development and production of steel towers(power transmission tower and telecom tower), steel structure and other welded steel products. We are located in Qingdao, with convenient transportation access, 50KM from the Qingdao Port (the third big port of China). We have 103 staff and the factory covers an area of 14000 square meters, building area of 7000 square meters. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world. We could design and manufacture products as clients order. We have mechanical physical laboratory, chemical laboratory, welding quality test laboratory to test our products' quality, meanwhile we strictly control every part's quality of the entire manufacturing process. Warmly welcome the friends from all over the world to cooperate with us.
