HDPE PIPE ISO4427-2000 DN355

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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 recently got started with oil paint, and some of my tubes are leaking quite a bit. i seal the cap well, and there are no holes or anything in the tubes. i read that putting the tubes under extreme heat or sunlight can cause them to leak, but i do neither of these things.how do you prevent/solve this?: Paint Tubes

Q: Are plastic tubes suitable for beverage dispensing?: Yes, plastic tubes are suitable for beverage dispensing. They are lightweight, durable, and can be easily cleaned. Additionally, plastic tubes can be manufactured in various sizes and shapes to accommodate different types of beverages.

Q: How do you connect plastic tubes together?: Plastic tubes can be connected together using various methods such as push-to-connect fittings, barbed fittings with hose clamps, solvent welding, or using threaded connectors with sealants. The appropriate method depends on the type of plastic used, the size of the tubes, and the desired level of connection strength.

Q: Are plastic tubes suitable for hydroponic systems?: Yes, plastic tubes are suitable for hydroponic systems. They are commonly used as a cost-effective and versatile option for transporting water and nutrients to the plants in a hydroponic setup. Plastic tubes are lightweight, easy to install, and resistant to corrosion, making them a practical choice for hydroponic gardening.

Q: Can you smoke hookah with just a plastic tube?: no, you need something to put the hookah in, and you need something to light it. And you don't want to burn the plastic and breathe the fumes!

Q: How do plastic tubes compare to stainless steel tubes in terms of weight?: Plastic tubes typically weigh significantly less than stainless steel tubes.

Q: How do plastic tubes compare to carbon fiber tubes in terms of strength?: Carbon fiber tubes are generally stronger than plastic tubes. Carbon fiber has a high tensile strength and exceptional stiffness, making it an ideal material for applications that require lightweight and durable structures. Plastic tubes, on the other hand, have lower strength properties and are more prone to deformation and breakage under high loads. Therefore, in terms of strength, carbon fiber tubes have a significant advantage over plastic tubes.

Q: How do plastic tubes compare to rubber hoses?: Plastic tubes and rubber hoses have different characteristics that make them suitable for specific applications. Plastic tubes are generally more rigid and offer better resistance to chemicals and UV rays, making them ideal for industrial and medical uses. On the other hand, rubber hoses are more flexible and have superior elasticity, making them suitable for applications where bending and stretching are required, such as in gardening and automotive industries. Ultimately, the choice between plastic tubes and rubber hoses depends on the specific needs and conditions of the intended use.

Q: had to take the doors off and the plastic tube got cut. or does it just pull off? anyways is it gunna leak if we try to turn it on? when i put the door back on? i stuffed the tube from the door into the bottom hinge nipple. it's only got ice in the door not water. so that's a drain tube?: No more ice machine

Q: Will they disintegrate or damage over time? Or are they safe like that for a while?: If you must store them for a long time get a tube that is acid free and that will hold out moisture. A plastic type tube. If you keep it dry and at normal room temperature, storing it in a tube is fine long term. Maybe even years. Do not roll tightly.

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