HDPE PIPE ISO4427-2000 DN50

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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

Q:FPC pipe is what tube, no can be used in outdoor direct buried?: PVC is the abbreviation of PVC material. It has the characteristics of light weight, heat insulation, heat preservation, moisture proof, flame retardance, easy construction and so on;

Q:He was talking about dope before he offered me a smoke, but when he offered me a smoke from his clear plastic tube, I asked what it was, and if I remember right he said Marijuana.He had to use his glasses to push whatever was in it to the end.I had never been high before, my heart was racing, and I was VERY talkative and loud.: Probably Marijuana it sounds like the side effects of a first time user

Q:I've also seen oxygen masks with tubes hooked up to them? And tubes in the nose?: It just depends on the amount of oxygen support a person needs. A nasal canula is probably the least amount of help, while a breathing tube (ET tube) gives complete breathing support.

Q:Can plastic tubes be used for gas transportation?: Yes, plastic tubes can be used for gas transportation.

Q:Why is the concrete wall filled with long and thin white plastic pipes?: When the wall and the wall are wide, the wall bolts are used, and the through wall bolts are used to pull through the formwork so that the wall formwork can not run out of shape when playing the concrete. The utility model is arranged in the plastic pipe for easy placement and extraction, and is convenient for repeated use.

Q:While changing the toilet paper my daughter accidentally flushed down the toilet the inner rod that goes through the cardboard tube to keep the roll in the holder. Unfortunately it’s large enough to cause a blockage so I need to get it out. It’s also made of hollow plastic, and will float – so the fact that I can’t see it means it is at least on the other side of the U-bend. A wire hook won’t help, there’s nothing to hook on to. How can I get it out?: SWIMMING LESSONS!

Q:Are plastic tubes suitable for use with corrosive substances?: No, plastic tubes are generally not suitable for use with corrosive substances as they can react with the chemicals and potentially degrade or release harmful substances into the material being transported.

Q:The difference between aluminum pipe and PPR pipe: The difference between aluminium plastic pipe and PPR pipe is appearance and construction method.The inner and outer layers of the aluminium plastic pipe are made of polyethylene plastic, and a layer of aluminum interlayer is rolled in the middle, and the copper fittings are needed to be connected for construction. The relative advantage is that the copper is not connected in a certain length.

Q:Can plastic tubes be used for fishing rod blanks?: Yes, plastic tubes can be used for fishing rod blanks. However, they are not commonly used due to their lack of durability and flexibility compared to traditional materials like graphite or fiberglass.

Q:How do you cut plastic tubes to size?: To cut plastic tubes to size, you can use a few different methods depending on the thickness of the tube and the tools available. Some common techniques include using a hacksaw, a PVC pipe cutter, or a utility knife. It's important to measure and mark the desired length accurately before cutting, and to apply steady pressure while cutting to ensure a clean and straight cut.

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