HDPE PIPE 4427-1996

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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:How can the iron pipe be joined to the plastic hose?
The water pipe is the water supply pipeline, the modern decoration water pipe is uses the burying wall type construction, the water pipe classification has three kinds, the first kind is the metal pipe, such as the hot cast iron pipe, the copper pipe, the stainless steel tube and so on inside the lining plastic. The second kind is the plastic compound metal pipe, such as plastic compound steel tube, aluminum plastic composite pipe, etc.. The third category is plastic pipes, such as PB and PP-R.
Q:What is the name of the plastic tube..
You can use either of the following : 1. A syringe. Usually the dentists give you a syringe without a needle. The one that is commonly given out is the monoject syringe that has the tip built into it with a slight curve. That means it is a one piece plastic syringe with the dispensing tip and a plunger. 2. You can also use a WaterPik or Water Jet Hope this helped :)
Q:How is 20 silver dollars inserted into plastic tube?
Home All Categories Computers Internet Internet YouTube ??
Q:Does the PVC-U drain plastic pipe need to be fabricated and installed?
PVC-U drainage plastic pipes shall be calculated for the installation of the pipe. The support shall be determined according to the laying method, drain pipe diameter, and the circumstances and location of the special placement.
Q:underwater does air move faster thru metal or plastic tubing?
it's exactly the same. unless the plastic tubing is under pressure by the water. if it's the same size tube, it won't matter.
Q:How do I get my hamster to stop chewing on the plastic tubes in his cage?
You can get this stuff called bitter apple spray that tastes bad but won't hurt them. Some pet stores have some for small animals, but the dog stuff is really the same thing so if that's all you can find, go for it. It's usually in the dog remedy aisle (with vitamins, hip meds, etc.) Do what the first person said and put it on a cotton ball and wipe it on the bars/plastic. And I agree with what someone else said, maybe he likes to chew on plastic. I don't think any plastic is okay for them to ingest, but then again maybe they're not ingesting it. I work at a pet store and all of our small animals chew up their plastic igloos like crazy, and none have died from digestive/stomach problems. So maybe try one of those? One the right size for a dwarf hamster is like $3-$4. You could try giving him a Nylabone or a Greenies dog treat, those both have a plastic-like texture. If you get a Nylabone I think i'd steer away from the meat-flavored ones. Also, what kind of food are you feeding him? If it's the seed-based kind, maybe if you fed him lab blocks he'd get some of the gnawing out of his system that way. Good luck!
Q:In Saw 6 in the beggining ( The Game Room Trap) why does Simone put that rope/plastic tube around her arm?
You mean like she tied it tightly around her upper arm? To slow down circulation to her arm, so she wouldn't bleed out and die so fast when she did.
Q:Do black ghosts *need* a tube of some sort for shelter?
He should really have a tube he can enter and be covered more. The tube can be clear, and he wont notice, but he could end up being stressed if he doesnt have a place were he can be mostly covered in an actual cave. especially if you add more fish, but even when he feels vibration from your footsteps. That driftwood looks dangerous too me. they have delicate skin and could easily be scratched. I would add a knife fish tube or pvc pipe or somthing with more cover so he can have that option. Mine would switch places every now and then. and prefered the more open natural looking cave to the pipe. Hope you plan to upgrade, knife fish are mostly blind, and a full grown one, even a half grown one, will have extreme difficulty swimming in a 55. He will need a longer tank with dimensions closer to this 180 gallon = 72 1/2 x 24 1/2 x 25 5/8, or he may not even be able to turn around.
Q:The difference between aluminum pipe and PPR pipe?
PPR pipe is commonly known as "hot melt pipe", through the construction of special heaters for pipe and pipe connection, waterproof leakage performance, corrosion resistance, impact resistance and heat resistance and so on. The theory of relative service life than aluminum tube.
Q:What can you use for a mortar firework tube?
pvc pipe. the size depends on the size of the mortar.

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