Plastic Tubes HDPE Pipe ISO4427-2000

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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 am doing a project and i have a plastic tube that need to go in circles so i need to straighten it. Any Ideas? I need this fast please. :): get a differeant tube

Q: What are the common uses for plastic tubes in construction?: Plastic tubes are commonly used in construction for various purposes such as plumbing, electrical conduit, ventilation systems, and drainage systems. They provide durability, flexibility, and resistance to corrosion and chemicals, making them suitable for a wide range of applications in the construction industry.

Q: Are plastic tubes easy to cut and shape?: Yes, plastic tubes are relatively easy to cut and shape due to their flexible and malleable nature. They can be easily manipulated using a variety of tools, making them suitable for various applications and customizations.

Q: How do plastic tubes compare to glass tubes?: Plastic tubes are generally more cost-effective and durable compared to glass tubes. They are lighter, less fragile, and less prone to breakage. Additionally, plastic tubes offer better resistance to chemicals and are often more suitable for applications involving corrosive substances. On the other hand, glass tubes provide better transparency and visibility, making them ideal for applications where observing the contents is crucial, such as in laboratories or scientific experiments.

Q: What are the different shapes of plastic tubes available?: There are various shapes of plastic tubes available, including round, square, rectangular, oval, and triangular.

Q: Are plastic tubes UV resistant?: Yes, plastic tubes can be UV resistant depending on the type of plastic used in their construction.

Q: I have a tube thats plastic and after i peeled the sticker off it was all sticky. Any help?: Old fashioned liquid cigarette lighter fluid will dissolve the adhesive and you can wipe it off with a soft cloth or paper towel.

Q: Can PVC pipes be used with drinking water?: To put it simply, the lead in PVC plastics comes mainly from the heat stabilizer, lead salt. PVC water pipes containing lead salts, in the process of using heavy metals lead to precipitate from the pipe into the water, causing pollution.

Q: How are plastic tubes sealed to prevent leakage?: Plastic tubes are typically sealed using various methods such as heat sealing, adhesive bonding, or crimping. Heat sealing involves melting the plastic ends together to create a secure bond. Adhesive bonding utilizes specialized adhesive materials to join the tube ends. Crimping involves applying pressure to deform and seal the tube ends using a crimping tool or machine. These sealing techniques help prevent leakage and ensure the contents of the plastic tubes remain intact.