The process of galvanizing is pickling, cleaning, washing, dipping solvent, drying. The welded pipe is lifted from the truck to the pickling tank for pickling (about 2 tons per lift). About 26% of hydrochloric acid solution was pickling. In order to prevent excessive pickling and volatilization of acid mist, 0.5~1.0g/L
Mainly used for conveying gas and heating. In gas, greenhouses, heating the kind of iron pipe is also galvanized pipe, galvanized pipe as a water pipe, the pipe produces a lot of rust scale, yellow water out not only pollution sanitary ware, but also mixed with the non-smooth inner wall
Fire-fighting pipes refer to pipe materials used for fire-fighting, connecting fire-fighting equipment, and transporting fire-fighting water, gas or other media. Due to special requirements, the thickness and material of fire-fighting pipes have special requirements, and they are sprayed with red paint to transport fire-fighting water. Fire Hose Since fire-fighting pipelines
Sch40 is the most commonly used pipe schedule. It can be galvanized — although it doesn’t have to be — and is usually used in water and gas lines. It may also appear in places that need ornamentation or support. It makes a great pipe due to its versatility and performance
The packaging requirements of seamless steel pipes (SMLS) are basically divided into two categories: one is ordinary bundling, and the other is loading in similar containers with turnover boxes. (1) Seamless steel pipes should be prevented from being damaged during bundling and transportation, and the bundling labels should be uniform.(2)
What is a cold drawn seamless tube? Seamless steel tubes can be divided into hot rolled-tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. according to different production methods. The biggest difference between cold-drawn seamless tube and hot-rolled seamless tube is that the precision of cold-drawn seamless tube is better than
There are two categories of factors that affect the quality of seamless pipes (smls pipe): steel quality and rolling process factors. Many factors of the rolling process are discussed here. The main influencing factors are: temperature, process adjustment, tool quality, process cooling and lubrication, removal and control of sundries on
American standard carbon structural steel ASTM A36 conforms to the standards of the American Society for Testing and Materials, and is produced according to ASME standards. It is an ordinary carbon steel pipe, equivalent to China’s Q235 material, and belongs to the American standard ordinary carbon steel plate. ASTM A36
Carbon steel tubes are made of steel castings or solid round steel through holes to make capillaries, and then made by hot rolling, cold rolling or cold drawing. Carbon steel tubes have an important position in China’s seamless steel tube industry. The key materials are mainly q235, 20#, 35#, 45#,
The seamless tube is formed in one piece, directly pierced from round steel, without welds on the surface, and has a wide range of applications. Because of the special processing of seamless steel tubes, carbon structural steel, low alloy structural steel, etc. are generally used for production, and its output
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