HDPE PIPE ISO4427-2000 DN73

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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:I have a 1 year old Robo hamster named Jewel. She has PLENTY of food (slightly chubby lol) and things to chew on..yet she is chewing on the plastic hamster tubes? She lives in a 10 gallon tank and has a silent spinner and toys (and a hut) 1.can she chew THROUGH the tube and escape? 2.can this hurt her health?: It will not hurt her health. Any rodent is likely to do that. It is not impossible that she could gnaw her way out through the plastic. Keep an eye on it and if she makes a small hole, it is time to do something about it before she enlarges it. If she doesn't make a hole, it is fine. .

Q:Can plastic tubes be used for promotional products?: Yes, plastic tubes can be used for promotional products. They are versatile, cost-effective, and customizable, making them suitable for various promotional purposes such as packaging, gift giveaways, and product display.

Q:I am doing a school project and i need to get my hands on some surgical tubing. i don't know ware to buy it however can somebody please help me???????: what kind of tubing small metal tubing can be found at the pharmacy, they have hypodermic needles of many sizes plastics tubing's you need to be more specific but some lab supplies stores have them, it is just difficult to find! Ch

Q:Can heating water pipes be made of ordinary plastic pipes?: General is generally PERT, the price comparison, the best is PEXC, the price is more expensive, but can produce C tube manufacturers are relatively strong. Anyway, all of them should be loaded with muddy water and ordinary ones, but they should be made by Dachang

Q:My house is two floors, though I think it was originally a one-story cape cod, and the upstairs was a single semi-second floor/attic. Anyways, the attic is now higher up, but the walls still slope on the sides. The air/heating unit is in the crawl space, duct work runs directly to vents/returns on the first floor, but for the second floor there are these two really large plastic(?) pipes that run up to the second floor from which I believe the ductwork is distributed. What are these called?: Vertical duct work. In general, if forced air, heated, cooled or even unconditioned, goes through it it is called duct work, unless it is an accessory / fitting such as a grille, diffuser, register etc. It's called duct work or vertical duct work if you would like.

Q:What is the shelf life of plastic tubes?: The shelf life of plastic tubes can vary depending on several factors such as the type of plastic used, storage conditions, and intended use. However, plastic tubes generally have a long shelf life and can last for several years if stored properly.

Q:How do plastic tubes compare to rubber tubes in terms of elasticity?: Plastic tubes generally have lower elasticity compared to rubber tubes.

Q:I am doing a human heart model and need to see where I can buy transparent tubes. No more than half an inch wide? Please help!: Try okorder /

Q:Can plastic tubes be used for chemical dosing?: Yes, plastic tubes can be used for chemical dosing. Plastic tubes are commonly used in various industries for dosing chemicals due to their resistance to corrosion and ability to handle a wide range of chemicals. They are cost-effective, easy to install, and offer good chemical compatibility, making them suitable for chemical dosing applications.

Q:What are the common fittings used with plastic tubes?: Some common fittings used with plastic tubes include compression fittings, barbed fittings, push-to-connect fittings, and threaded fittings.

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