Polyurethane lined steel pipe is a high wear resistant pipeline product, which is widely used in mineral processing pipelines and tailing transmission pipelines. Fossil-fuel power station use the pipeline for coal and ash removal systems, as well as for oil, chemical, cement and grain industries.
Features
1. Wear-resistant
2.Prevent Scaling
3.Corrosion Resistance
4. Resistance to hydrolysis aging
5. High Elasticity
6. Resistance to Mechanical Shock
7. Self-lubrication
Arex selects the premium master batch with nano-modified approach to strength the polyurethane material’s function. It makes the polyurethane lined products with more steady chemical structure and demonstrate its adaptability in the working circumstance.
The polyurethane lined steel pipe, as one of domestic patent of mining products in Arex, is popular and being used by our mining customers.
Comparison of properties between common polyurethane and nano-modified polyurethane
|
Testing item
|
Common polyurethane test index
|
(nano-modified) polyurethane
|
|
Tensile strength
|
15-21MPa
|
19-28MPa
|
|
300%setting the stretching strength
|
8-10MPa
|
11-13MPa
|
|
Tensile elongation
|
400-500%
|
400-500%
|
|
Break permanent deformation
|
5-8
|
5-8
|
|
The tear strength
|
5MPa/cm
|
6.8MPa/cm
|
|
Shear strength
|
6MPa/cm²
|
8.1MPa/cm²
|
|
Avulsion intensity
|
7.5MPa/cm²
|
11MPa/cm²
|
|
Peel strength
|
1.4MPa/2.5 cm²
|
2.1MPa/2.5 cm²
|
|
Akron abrasion
|
0.045cm³/1.61km
|
0.008cm³/1.61km
|
|
Low temperature brittleness
|
-42
|
-70
|
|
Hardness (shaw A)
|
60-100
|
60-100
|
|
The density
|
1.12
|
1.12
|