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 resistant to fire?: No, plastic tubes are not generally resistant to fire.

Q: Can plastic tubes be used for crafts or DIY projects?: Yes, plastic tubes can definitely be used for crafts or DIY projects. They are versatile and can be easily cut, shaped, and decorated according to your needs. Whether it's creating jewelry, storage containers, or even small sculptures, plastic tubes provide a convenient and affordable option for various creative projects.

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 plastic tubes perform in high-temperature environments?: Plastic tubes generally do not perform well in high-temperature environments as they have a lower heat resistance compared to other materials such as metal. The plastic can melt, deform, or lose its structural integrity, potentially leading to leaks or failure. It is advisable to use materials specifically designed for high-temperature applications in such environments.

Q: What is the level of transparency of plastic tubes?: The level of transparency of plastic tubes can vary depending on the type of plastic used and the manufacturing process. Generally, plastic tubes can range from being completely transparent, allowing for clear visibility of the contents inside, to being translucent or opaque, limiting visibility to some extent.

Q: Can plastic tubes be used for storing corrosive substances?: No, plastic tubes cannot be used for storing corrosive substances as they are not resistant to the chemical reactions caused by corrosive materials.

Q: Are plastic tubes suitable for high-pressure applications?: No, plastic tubes are generally not suitable for high-pressure applications.

Q: Can plastic tubes be used for interior design applications?: Yes, plastic tubes can be used for interior design applications. They are versatile and can be shaped, cut, and painted to create unique and modern designs for various interior elements such as lighting fixtures, decorative accents, furniture, and more. Additionally, plastic tubes are often lightweight, durable, and cost-effective, making them a popular choice for interior designers looking to add a contemporary touch to their projects.

Q: How are plastic tubes filled with powders or granules?: Plastic tubes filled with powders or granules are typically filled using various methods such as gravity filling, vacuum filling, or mechanical filling. These methods involve either pouring the powder or granules into the tube, using suction to pull them into the tube, or using mechanical devices to accurately measure and fill the tubes.

Q: Difference between u-PVC drain pipe and pressure hard polyvinyl chloride water supply pipe (UPVC): PVC general PVC, there is a hose, can be used as temporary pipe; UPVC rigid PVC strength than ordinary PVC higher, plastic relative handicap, water supply and drainage with this, such as rainwater pipe.

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