Application of DuraPipe:
Be widely used as transportation pipes in thermal power, metallurgy, mine, coal and chemical industry for its
amazing advantages of wear resistance, corrosion resistance and thermal resistance as well.
1. Thermal power and metallurgy;Remarkably resists the wearing and corrosion from the material of coal
powder, ash and slurry.
2. Mine and coal ;Remarkably resists the wearing and corrosion caused by impact of blocks, erosion of
conveying materials.
3. Others ; Remarkably resists the wearing and corrosion caused by chemical materials, high temperature
erosion air and solid causticity materials as well. Process flow
The pipe consists of alumina ceramic, transition layer and steel as surface. The ceramic layer is sintered
under the temperature of above 2200 ℃, and form a firm compound pipe combining with steel layer through
the transition.
Advantages
1. Excellent wear resistance
Adopting alumina ceramics as liner, arriving at above hardness 9.0 Mohs or HRC90, the pipes have high
wear resistance for abrasive medium in various industries. 15 years practice has proved the lifetime of the
pipe is above 10 times than normal hardened steel.
2. Friction promotion
Inner surface smooth and without erosion, the inner smoothness of SHS pipes is superior to any other metal
pipes and arrives at clear water resistance coefficient of 0.0193.
3. Corrosion resistance, scaling protection
Alumina ceramic has advantages of seawater erosion, acid and alkali resistance, also scaling protection.
4. Prominent thermal and impact resistance
Corundum ceramic（a-AL2O3）is stable crystal structure. The SHS compound pipe can be long time running
under a temperature range of -50--700℃. The ceramic material has good thermal stability with linear thermal
expansion coefficient6-8×10-6/0C，approximately at half of steel pipe.
5. Lower cost
The weight of SHS compound pipe is just arriving at half of casting stone pipe and approximately 70% of alloy
pipe. With advantages of wear and corrosion resistance, the lifetime of SHS pipe is outstandingly longer than
other wear resistant pipes hereby the cost of assembly and running is largely reduced.
6. Easily assembly
Due to its light weight and good weldability, it can be assembled easily with welding or flange connection and
remarkably reduce the fixing cost.
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