HDPE PIPE ISO4427-2000 DN20

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Physical properties[edit]

Polyethylene is a thermoplasticpolymer consisting of long hydrocarbon chains. Depending on the crystallinity and molecular weight, a melting point and glass transition may or may not be observable. The temperature at which these occur varies strongly with the type of polyethylene. For common commercial grades of medium- and high-density polyethylene the melting point is typically in the range 120 to 180 °C (248 to 356 °F). The melting point for average, commercial, low-density polyethylene is typically 105 to 115 °C (221 to 239 °F).it is transprant.

Chemical properties[edit]

Most LDPE, MDPE and HDPE grades have excellent chemical resistance, meaning that it is not attacked by strong acids or strong bases. It is also resistant to gentle oxidants and reducing agents. Polyethylene burns slowly with a blue flame having a yellow tip and gives off an odour of paraffin. The material continues burning on removal of the flame source and produces a drip.[3] Crystalline samples do not dissolve at room temperature. Polyethylene (other than cross-linked polyethylene) usually can be dissolved at elevated temperatures in aromatic hydrocarbons such as toluene or xylene, or in chlorinated solvents such as trichloroethane or trichlorobenzene.[4]

GB/T13663-2000:

PE63管材规格
公称
外径dn,mm
SDR33 SDR26 SDR17.6 SDR13.6 SDR11
公称压力 PN,Mpa
0.32 0.4 0.6 0.8 1.0
公称
壁厚
公称
壁厚
公称
壁厚
公称
壁厚
公称
壁厚
16        2.3
20      2.3 2.3
25    2.3 2.3 2.3
32    2.3 2.4 2.9
40  2.3 2.3 3.0 3.7
50  2.3 2.9 3.7 4.6
63 2.3 2.5 3.6 4.7 5.8
75 2.3 2.9 4.3 5.6 6.8
90 2.8 3.5 5.1 6.7 8.2
110 3.4 4.2 6.3 8.1 10.0
125 3.9 4.8 7.1 9.2 11.4
140 4.3 5.4 8.0 10.3 12.7
160 4.9 6.2 9.1 11.8 14.6
180 5.5 6.9 10.2 13.3 16.4
200 6.2 7.7 11.4 14.7 18.2
225 6.9 8.6 12.8 16.6 20.5
250 7.7 9.6 14.2 18.4 22.7
280 8.6 10.7 15.9 20.6 25.4
315 9.7 12.1 17.9 23.2 28.6
355 10.9 13.6 20.1 26.1 32.2
400 12.3 15.3 22.7 29.4 36.3
450 13.8 17.2 25.5 33.1 40.9
500 15.3 19.1 28.3 36.8 45.4
560 17.2 21.4 31.7 41.2 50.8
630 19.3 24.1 35.7 46.3 57.2

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Q:There's this girl from my highschool who wears this neck wrap around thing with a plastic tube that...?
That tube Is so she can breath she has had a tracheotomy.
Q:How to remove the plastic tube applicator from a tampon?
No the plastic is not meant to b in you
Q:My wife flushed a plastic tube of lotion down the toilet. Is this bad?
I think you are ok. I wouldn't call anyone until there is actually a problem. Most likely it has already went to the tank by now. Even if it gets stuck in a trap you can unloose it with a plunger to get it to go down into the tank.
Q:Difference between u-PVC drain pipe and pressure hard polyvinyl chloride water supply pipe (UPVC)
PVC general PVC, there is a hose, can be used as temporary pipe; UPVC rigid PVC strength than ordinary PVC higher, plastic relative handicap, water supply and drainage with this, such as rainwater pipe.
Q:Where can I find a plastic tube?
Here okorder.com/
Q:What is the best tool to use to cut a 6 mm diameter plastic tube cleanly in half.?
use a PVC cutter,
Q:what kind of tube do they put in people's ears?
Little plastic ones maybe 1 or 2 millimeters with a flap on the end.
Q:Can mercury be stored in a hard plastic test tube?
If it can b stored in a thermometer, it can be stored in a test tube. You should seal it though
Q:where can i buy small diameter gas tubing?
Any hardware store. Take a piece of the old with you and be sure to get the right size. Also make sure it is for fuel. They have other plastic tubing that is not for fuel. You shouldn't need a sealant if you get the right size tubing. If you have to run the tubing through the fuel tank as an example, cut the end of the tubing with a razor blade or sharp knife at an extreme angle to make a point at the end of the tube like you would sharpen a pencil. It will go through the hole easier and you can square it off later.
Q:Could a K9 smell marijuana through a plastic test tube?
Yes, they can smell it through almost anything. Usually they smell the trace amount on the outside of the tube.

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