Shenzhen Shengjinlong Iron and Steel Co., Ltd.

0755-89345123

215088612@qq.com

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Shenzhen Shengjinlong Iron and Steel Co., Ltd.


Contact: Mr. Wu


Contact number: 0755-89345123


Mobile: 13682609066


E-mail: 215088612@qq.com


Address: No. 06, Building A, Building Materials Market, Pingshan New District, Shenzhen


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Analysis of weight parameters of galvanized pipes

Hot dip galvanized pipe

A galvanized tube is a combination of a molten metal and an iron matrix to produce an alloy layer, thereby combining the substrate and the plating. Hot-dip galvanizing is to pickle the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, it is washed by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then fed. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform plating, strong adhesion and long service life. The hot-dip galvanized steel pipe base and the molten plating solution undergo complex physical and chemical anti-galvanized steel pipes to form a corrosion-resistant structure of a zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe base. Therefore, its corrosion resistance is strong.

Cold galvanized pipe

The cold-galvanized pipe is electro-galvanized, with a small amount of galvanizing, only 10-50g/m2, and its corrosion resistance is much worse than that of hot-dip galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electro-galvanizing (cold plating). Only small companies with small equipment and old equipment use electro-galvanized steel, of course, their prices are relatively cheaper. At present, the Ministry of Construction has officially laid down the cold-galvanized pipe with backward technology, and the cold-galvanized pipe is not allowed to be used as water and gas pipe in the future. The galvanized layer of the cold-galvanized steel pipe is an electroplated layer, and the zinc layer and the steel pipe base are separately layered. The zinc layer is thin, and the zinc layer is simply attached to the steel pipe base and is easy to fall off. Therefore, its corrosion resistance is poor. In new homes, the use of cold-galvanized steel pipes as water supply pipes is prohibited.

Weight coefficient of galvanized steel pipe

Nominal wall thickness mm 2.0 2.5 2.8 3.2 3.5 3.8 4.0 4.5 Coefficient parameters: c 1.064 1.051 1.045 1.040 1.036 1.034 1.032 1.028 The mechanical properties of steel injection are important indicators to ensure the final performance of the steel (mechanical properties), it depends on the chemical composition of the steel and Heat treatment system. In the steel pipe standard, tensile properties (tensile strength, yield strength or yield point, elongation), hardness and toughness indexes, and high and low temperature properties required by users are specified according to different use requirements. : Steel grade: Q215A; Q215B; Q235A; Q235. Test pressure value / Mpa: D10.2-168.3mm is 3Mpa; D177.8-323.9mm is 5Mpa

All the above explanations are about the analysis of the weight parameters of galvanized pipes. To share with you, Shenzhen Shengjinlong Iron & Steel Co., Ltd. is a large-scale warehouse-operated trading company specializing in the sale of steel products. Off-the-shelf, complete specifications. The company is one of the companies operating steel in Shenzhen Shenchuanglian Industrial Co., Ltd., established in 2018. We have been adhering to the principle of "honesty, customer first, sincere cooperation, hand in hand", with the purpose of "sufficient supply, complete specifications, reasonable price and good service", and established a good reputation in the surrounding area. Get the trust and support of many customers and establish a long-term friendly cooperative relationship. Thank you for your reliance and support, the company will continue to provide better products and better services to our customers and colleagues from all walks of life. The company's main business: hot-dip galvanized rectangular tube, angle groove, round flat steel, galvanized embedded parts, galvanized pipe and Pu steel angle iron, channel steel, I-beam, steel pipe, square tube and so on Steel products.