HDPE Plastic Tubes ISO4427-1996

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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

Q: Are plastic tubes microwave-safe?: No, plastic tubes are generally not microwave-safe as they can release harmful chemicals and melt in the high heat of a microwave.

Q: ive heard this is used in aquariums and whatnot, but what exactly does it do? and what can it be used for?: Airline tubing is the clear, plastic tubes that are used to put air into the tank. Sometimes it's just from an air pump that makes bubbles, sometimes it's actually oxygen. It comes in lots of different sizes, and good pet stores will sell it to you by the foot.

Q: Can plastic tubes be easily cut to size?: Yes, plastic tubes can be easily cut to size using appropriate cutting tools such as a hacksaw or a tube cutter.

Q: What are the common diameters of plastic tubes?: The common diameters of plastic tubes can vary depending on their intended use, but some common sizes include 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, and 1 inch.

Q: How do you prevent plastic tubes from bending?: There are a few ways to prevent plastic tubes from bending. One approach is to reinforce the tubes with materials such as metal or fiberglass. Another method is to use thicker or more rigid plastic materials when manufacturing the tubes. Additionally, ensuring proper installation and support of the tubes can help prevent bending.

Q: Are plastic tubes suitable for point-of-purchase displays?: Yes, plastic tubes are suitable for point-of-purchase displays. They are lightweight, durable, and can be easily customized in terms of size, shape, and color. Plastic tubes can effectively showcase products, attract customer attention, and enhance the visual appeal of the display.

Q: The difference of PVC plastic pipe and PE pipe?: PVC has good tensile and compressive strength, but its flexibility is better than other plastic pipe, excellent corrosion resistance, the cheapest price in all kinds of plastic pipe, but low temperature brittle adhesive, rubber ring socket flange connection, threaded connection for residential living, industry, agriculture, irrigation, water supply and drainage, exhaust gas pipe, wire pipe, rain water pipe, industrial anti-corrosion pipe etc..

Q: Do plastic tubes have any UV resistance?: Yes, plastic tubes can have UV resistance depending on the type of plastic they are made from. Some plastics, such as PVC, HDPE, and polycarbonate, are inherently UV resistant and can withstand prolonged exposure to sunlight without significant degradation. However, other plastics, like polyethylene and polypropylene, are more susceptible to UV damage and may require additional UV stabilizers or coatings to enhance their UV resistance.

Q: How do plastic tubes perform in high-altitude environments?: Plastic tubes generally perform well in high-altitude environments due to their lightweight and durable nature. However, their performance can vary depending on factors such as temperature fluctuations, pressure changes, and exposure to UV radiation. It is important to choose appropriate materials and designs that can withstand these conditions and prevent any potential degradation or failure.

Q: Difference between u-PVC drain pipe and pressure hard polyvinyl chloride water supply pipe (UPVC): PVC PVC, English (Polyvinyl chloride, referred to as PVC) is a vinyl chloride monomer (vinyl chloride monomer, referred to as VCM) in peroxide, such as azo compound initiator; or in light, under the action of heat polymerization by free radical reaction mechanism of polymerization of polymers. The vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resins.

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