EN
Description
The self-anchoring ductile iron pipe is a pipe made of ductile iron material and formed with a self-anchoring joint inside through a special manufacturing process. Its main features include high strength, high toughness, strong corrosion resistance, and long service life. The manufacturing process of the self-anchoring ductile iron pipe mainly includes the selection and processing of raw materials, smelting, spheroidizing treatment, pouring, cooling, heat treatment, inner wall treatment and quality inspection. Among them, the selection and processing of raw materials are the key to ensuring the performance of cast iron pipes, and smelting and spheroidizing treatment are important links that determine the internal structure of cast iron pipes. The advantages of the self-anchoring ductile iron pipe are mainly reflected in the following aspects: First, its high strength and toughness enable the pipe to withstand greater pressure and impact; second, its strong corrosion resistance enables the pipe to be used for a long time in harsh environments; third, its long service life greatly reduces the maintenance cost of the pipe.
Specifications
| Mechanical properties of ductile cast iron pipes: | ||||
| Centrifugal ductile iron pipe | Ordinary gray cast pipe | Steel Pipe | ||
| Tensile strength (MPa) | ≥420 | 150--260 | ≥400 | |
| Elongation (%) | <1000(mm) | ≥10 | Ignore | ≥18 |
| >1000(mm) | ≥7 | Ignore | ≥18 | |
| Brinell Hardness (HBS) | ≤230 | ≤230 | About 140 | |
| The metallographic structure of the annealed ductile iron pipe is ferrite with a small amount of pearlite, and the mechanical properties are better. | ||||
| Other properties of ductile cast pipe: | |
| The hydrostatic test pressure of ductile iron pipe is shown in the following table: | |
| Nominal diameter DN (mm) | Hydrostatic test pressure (MPa) |
| 80≤DN≤300 | 5 |
| 350≤DN≤600 | 4 |
| 700≤DN≤1000 | 3.2 |
| 1100≤DN≤2000 | 2.5 |
Applications
Our main products include ductile iron pipes, which are suitable for fields such as engineering, coal mines, textiles, power, boilers, machinery, and military industry.
FAQ
Question: Do you accept third-party inspections?
Answer: Yes, we fully accept it.
Question: Do you provide samples? Free or extra?
Answer: The cost of the sample is calculated based on its value, and the freight is necessary.
Question: Do you have a large inventory of steel products?
Answer: Yes, we have a large indoor warehouse with a total annual spot inventory of over 200,000 tons.
Question: How about your delivery time and supply capacity?
Answer: The delivery period is generally within 15 to 28 working days. We can supply approximately 10,000 tons per month.
Question: How to place an order?
Answer: Buyer sends inquiry → Buyer gets quotation → Order confirmation → Buyer sends deposit → Seller prepares goods → Seller conducts strict inspection → Buyer arranges balance payment → Packaging and delivery
Question: How to ensure product quality?
Answer: All products must undergo three inspections throughout the manufacturing process, including production, random testing in the warehouse, and pre-shipment.
