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:What is a rigid flame retardant pipe?
Pipe length 4m/ root, the color is white, pure white, bending needs special bending spring. Pipe connections using special joint insertion connection, the connection with the special surface coating adhesive, sealing interface.
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According to meters one meter 100 yuan, the money
Q:What is the PPR plastic pipe?
PPR is the abbreviation of English random copolymer polypropylene (Polypropylene-Random). Commonly known as type three polypropylene.PPR pipe is galvanized pipe, UPVC pipe, plastic pipe, PE pipe, PE-X pipe, PE-RT pipe product updates.
Q:How much does those little tubes to connect to other cages for hamsters cost at petsmart?
4 - 25$
Q:how do i make an artillery shell tube?
I okorder.com ...
Q:What is this cracked, plastic tube connected to the 03 Accord's engine?
You okorder.com/
Q:what can I do to control the toothpaste for a one way flow to the tube exit orifice?
You know, if you found the answer to this you could win a nobel prize.
Q:Apartment washer leaking water from a clear plastic tube/bag, is that overflow drain? or does it need a pipe?
I would plug it. It is probably an overflow drain. If the washer gets too full it will probably not get the floor any wetter than if the overflow drain runs on the floor. If this happens open the tube up and run it into a pan.
Q:How do you get the last squeezes out of the new plastic tubes?
I take a hair brush or comb and run it on the side to push as much as possible to the top then I cut the tube close to the top and scoop out the rest. I do this with my tubes of makeup too. There is really a lot left in there! I dilute my shampoo with water. It spreads easier and lathers better and works just as well if not better.
Q:Plastic pipe gas problem 150 degrees, plastic pipe surface problems?
The most widely used plastic pipe is plastic pipe. There are many kinds of plastic pipes, which are divided into two categories: thermoplastic pipes and thermosetting plastic pipes. It belongs to thermoplastic, including PVC pipe, polyethylene pipe, polypropylene pipe, POM pipe, super high molecular weight polyethylene pipe, etc. it belongs to thermosetting phenolic plastic pipe. The main advantages of plastic pipes are good corrosion resistance, light quality, convenient molding and easy processing. The disadvantages are low strength and poor heat resistance.

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