Galvanized Steel Pipe Custom Z10 Z20 Z30 Z40 Dx51d Dx52D Gi Tube Galvanized steel pipe is a welded steel pipe with a hot-dip or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and prolong their service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially offshore oil fields, and oil heaters and condensation pipes for chemical coking equipment. Pipes for coolers, coal distillation washing oil exchangers, trestle piles, and support pipes for mine tunnels, etc.
| Standard | EN10219,EN10210,GB/T 6728,JIS,G3466,ASTM A500, A36 |
| Material | S235GT,S355,STK400,STK500,Q345/Q235 |
| Diameter | Square pipe: 20*20mm~500*500mm
Rectangular pipe: 20*40mm~300*500mm |
| Wall thickness (W.T.) | 1.2mm~20mm |
| Length | 6.0M, 6.5M, 5.0M, 4.0M, 3.0M, 6.5M,1m-12m ,by customer's requiremnts |
| Surface Anti-rusty Coating | Pre-galvanized (Zinc coating: 40-80g/m2)
Hot dipped galvanized (Zinc coating: 200-600g/m2 ) |
| Surface | Black, or Galvanized and Oiled to prevent the rust |
1. Material preparation: Select high-quality steel as the base material, and prepare the needed galvanized materials, pipe fittings and tools.
2. Processing and production: the steel is cut into the appropriate length, and stacked into a certain number according to the design requirements, and then the steel is processed, including welding, bending, punching and other processes. The processed steel pipe is combined into a predetermined structure and connected with pipe fittings.
3. Oil removal, pickling: the processed steel pipe will be removed oil and pickling treatment, so that the surface can be better bonded with galvanized materials.
4. Preheating treatment: the steel pipe after oil removal and pickling treatment is preheated, and the steel pipe is heated to a certain temperature to improve its surface quality and adhesion.
5. Galvanizing treatment: The preheated steel pipe is galvanized by hot dip galvanizing and electroplating.
6. Inspection and quality control: quality inspection and control of galvanized steel pipe to ensure its quality and national standards and customer requirements.
7. Packaging and transportation: The galvanized steel pipe is packaged and then transported.
Generally, 20GP containers and 40GP containers are used. In the case of a large number of containers, we can take bulk carriers. 
We can produce 500 tons of galvanized steel pipe per month, in Shandong Province, Jiangsu Province and other warehouses, a wide variety of sizes can meet the different requirements of customers, welcome to consult at any time. Jiangsu Xinyi Steel Co., Ltd. is located in Wuxi City, Jiangsu Province. Is a collection of domestic trade and international trade as one of the professional steel sales company. The company's products include stainless steel, seamless pipe, color coated plate, galvanized plate, aluminum plate, copper plate and other profiles, building materials, pipe series. Products are widely used in chemical, pharmaceutical, electric power, railway, automobile, paper, construction engineering and other fields. The company has long-term and close trade relations with Shandong Iron and Steel, Tangshan Iron and Steel, Handan Iron and Steel, Jinxi Iron and Steel and other well-known domestic iron and steel enterprises. 
1. who are we?
We are based in Shandong, China, factory located in Liaocheng, the hometown of chinese steel pipes.
2. how can we guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
3.what can you buy from us?
PPGI,PPGL,GI,GL,Roof Sheet, GI coil, steel pipes and beams, stainless steel sheets and coils and pipes.
4. why should you buy from us not from other suppliers?
1. 20 years manufacture &exporting
2. ISO/SGS/CE approval quality factory
3. Professional supplier in steel field
4. Product line of PPGI PPGL,GI GL
5. Machines of roofing sheet
6. Standard sea package
7. Good service
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese
