1.Performance comparison of UHMW-PE with other materials
Item |
Experimental methods |
Units |
UHMWPE |
PA66 |
PVC |
PE |
Steel Pipe |
Average molecular weight |
GB1841 |
1.5×106 |
5×105 |
||||
Density |
GB1033 |
G/Cm3 |
0.935 |
1.13-1.15 |
1.4 |
0.945 |
7.8 |
Water absorption |
ASTMD-570 |
% |
0.01 |
3.8 |
0.07-0.4 |
0.01 |
|
Melting Point |
ISO11357.3 |
136 |
255 |
160 |
129 |
||
Heat distortion temperature0.46MPa |
GB1634 |
85 |
182-224 |
54-73 |
71 |
||
Linear expansion coefficient |
ASTMD-696 |
10-4/ |
1.5 |
0.8 |
1.2 |
||
Tensile strength |
GB/T1040 |
MPa |
39.2 |
61 |
40 |
25 |
|
Tensile yield stress |
GB/T1040 |
MPa |
22 |
20 |
|||
Tensile elongation at break |
GB/T1040 |
% |
≥350 |
60-300 |
60-120 |
≥350 |
|
The impact on the Gap of simply supported beam |
GB/T1043 |
KJ/m |
Continuously |
5.9-10.8 |
10 |
27 |
|
Rockwell hardness |
GB/T9342 |
40 |
85-120 |
33 |
|||
Friction coefficient |
Three petrochemical Law |
0.05-0.11 |
0.37 |
0.4-0.6 |
0.4 |
0.58 |
|
Wear rate |
Three petrochemical Law |
% |
21 |
100 |
210 |
210 |
140 |
Scaling |
Non- scaling |
Scaling |
|||||
Corrosion-resistant |
Merit |
Average |
Average |
Average |
Average |
3.The characteristic of UHMWPE pipes
Anti-abrasion: Under the same instance, the bulk lost is only the 1/7 of steel piper .
Anti High-pressure:It is applicable under the press 0.2Mpa-4.0Mpa.
Anti-corrosion:Because the solid structure,it can anti-corrosion very well.
From Lubrication:The abrasion is the least among all the pipes materials .Under the same stance,the press lost is only the steel pipes1/10,and is only the nylon 1/7.
Non-scaling:The internal wall is so slippery that the medium cant deposit on it..
Light Weight:The density is the 1/8 of the steel.it's easy to convey and install.
Available to connection: It's welded by flange or hoop. And it's convey and install.
Anti-aging: There is anti-ultraviolet radiation material in the pipes, May use above for 50 years under the burning hot sunlight.
Health&Safety:This kind of pipe is innocuity.
Temperature-resistance:The pipe can be used from -70oC to 85oC.
Long life: Under the same instance, the used life is 7 times of the steel pipes .
4.The biggest factroy of UHMWPE pipes---Shandong Buoy&Pipe Industry Co.,Ltd
Shandong Buoy&Pipe Industry Co.,Ltd, is an industry leader of UHMWPE products, including UHMWPE plastic pipes, buoys, light towers and plates, used for different marine projects;
Our company is involved in the IALA guideline revisement for plastic buoys, which will include UHMWPE buoys in the near future;
Our company have 35 production lines, with annual prodcution capacity of 50,000 tons, the diameter of the pipes ranging from 42mm to 1300mm;
We have professional engineers and R&D team, have independent research and production capability.
ID DN(mm) |
WT(mm) |
|||||
0.6Mpa |
0.8Mpa |
1.0Mpa |
1.25Mpa |
1.6Mpa |
2.0MPa |
|
150 |
— |
— |
7 |
8 |
11 |
14 |
200 |
— |
7 |
9 |
11 |
14 |
18 |
250 |
7 |
9 |
11 |
14 |
18 |
23 |
300 |
8 |
10 |
13 |
17 |
23 |
30 |
350 |
9 |
12 |
15 |
19 |
25 |
32 |
400 |
10 |
14 |
17 |
22 |
29 |
36 |
450 |
12 |
16 |
20 |
25 |
32 |
41 |
500 |
13 |
17 |
22 |
27 |
36 |
45 |
550 |
14 |
19 |
24 |
30 |
39 |
50 |
600 |
15 |
21 |
26 |
33 |
43 |
— |
650 |
17 |
22 |
28 |
36 |
46 |
— |
700 |
18 |
24 |
30 |
38 |
50 |
— |
750 |
19 |
26 |
33 |
41 |
— |
— |
800 |
21 |
28 |
35 |
44 |
— |
— |
850 |
22 |
29 |
37 |
47 |
— |
— |
900 |
23 |
31 |
39 |
49 |
— |
— |
1000 |
26 |
34 |
43 |
— |
— |
— |
1100 |
28 |
38 |
48 |
— |
— |
— |
1200 |
31 |
41 |
— |
— |
— |
— |
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Lily wang
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