HITEALLOY

Performance characteristics：

1. Higher specific strength (tensile strength).

2. Good strength at medium temperature, able to maintain the required strength even at medium temperature, and able to work for a long time at a temperature of 5500 ℃.

3. Good corrosion resistance, with superior corrosion resistance in seawater, wet chlorine gas, and chloride solutions.

4. Good low-temperature performance.

5. Low elastic modulus, low thermal conductivity, and no ferromagnetism.

6. High hardness.

7. Thermoplastic cost.

Technical parameter:

Acceptance of incoming pipe blank:

1. Surface inspection

Inspect the tube blank for serious eccentricity and other defects in the production process, whether there are spiral lines on the outer surface, and whether there are quality issues such as peeling on the inner surface.

2. Chemical composition

For the quality certificate provided by the raw material manufacturer, our factory takes samples from both ends of the pipe according to regulations and sends them to the laboratory for retesting. After comparison with the supply and demand contract, they are accepted according to international standards (3620.1-2010).

3. Testing

Cut 40-60mm samples from both ends of the pipe blank for destructive testing to determine whether their plastic and elastic properties are qualified, and whether there will be post compression cracks and depth defects on the inner and outer surfaces.

4. Dimensional tolerances

Check the maximum and minimum outer diameters of the pipe blank; Maximum wall thickness, minimum wall thickness, and check if the dimensions meet their size range.

5. Scraping pipes and boring holes

Before rolling, the outer surface of the extruded tube blank should be scraped and bored on one side with a diameter of 0.25-0.3mm; Before rolling, the perforated pipe blank should be repaired with a polishing machine to remove surface defects and cracks. After rolling one pass, the inner boring should be carried out, with a single side diameter of 0.25-0.3mm.