We can offer Stainless Steel Pipe products, including Stainless Steel Capillary Pipe, Stainless Steel Precision Pipe, Stainless Steel Seamless Pipe, Stainless Steel Sanitary Pipe, Thick Wall Stainless Steel Pipe, Stainless Steel Bright Tube, Stainless Steel Needle Tube, Stainless Steel Fine Tube, Stainless Steel Coil, Welded Stainless Steel Pipe, Stainless Steel Industrial Pipe, Stainless Steel Round Tube, Medical Stainless Steel Tube, Stainless Steel Thin Wall Tube, Stainless Steel Shaped Tube, Stainless Steel Elbow, Stainless Steel Snake Bone Tube, Stainless Steel Decorative Tube, Stainless Steel Electronic Cigarette Tube, Stainless Steel Tube Processing, Copper Pipe, Titanium Alloy Tube, Aluminum Tube, and so on.
The world's stainless steel car body has mainly gone through a development stage: 1. The outer plate stainless steel car with only the outer body plate of stainless steel; 2. The semi-stainless steel car with carbon steel chassis; 3. All stainless steel; 4. Lightweight stainless steel car.
The first company in the world to use stainless steel materials for vehicle manufacturing was the American Budd Company, which developed the world's first stainless steel railway passenger car in 1932. At present, various materials such as stainless steel and aluminum alloy are widely used in railways and urban rail vehicles in developed countries in the world, such as Japan and Germany. .
The first stainless steel car produced in my country was in 1987. Changchun Railway Passenger Car Co., Ltd. used the 0Cr18Ni9 material of Taiyuan Iron and Steel Company, and used the traditional arc welding process to produce 2 Rw22 soft sleeper cars. The car body is 23.6m long and 3105mm wide. 2 vehicles are assigned to the railway Wuchang depot. In February 2003, Changchun Railway Passenger Vehicle Co., Ltd. completed the manufacture of 1 train of 4 subway stainless steel car bodies, which will be used on Beijing Line 13. The car body is about 2t lighter than the carbon steel car body, and it has passed the static strength test, which indicates that my country has mastered the design and manufacture of lightweight stainless steel car body. In July 2003, the first stainless steel urban rail passenger car developed and produced by my country rolled off the assembly line in Changchun Railway Passenger Car Co., Ltd. It is also the first urban rail passenger car in my country with a speed of 100km/h.
Before the 1990s, restricted by the level of economic development at that time, my country had a large demand for various carbon steel vehicles, and there was almost no demand for high-end vehicles such as stainless steel and aluminum alloys. Since the 1990s, with the development of the economy and the improvement of living standards, the market demand for high-end vehicles has greatly increased. For example, the urban rail transit in Shanghai, Guangzhou, Wuhan and Chongqing uses aluminum alloy vehicles; Tianjin Binhai Express Rail Transit uses stainless steel vehicles; Beijing hosted the 2008 Olympic Games, in order to improve the grade of subway vehicles, stainless steel vehicles were mainly used; in terms of railway transportation, The Guangzhou-Shenzhen Line has already operated the X2000 stainless steel car produced in Sweden, and is about to start the 210km/h aluminum alloy electric train unit. The Qinghai-Tibet Railway considers using stainless steel railway passenger cars.
If domestic stainless steel cars want to form batches and reduce costs, the key is to solve the problem of localization of stainless steel car materials. Stainless steel cars in Japan, South Korea and other countries use austenitic high-strength cold-rolled stainless steel plates specially used for vehicles. The chemical composition, mechanical properties and surface patterns of this material have all formed standards. At present, there is no such material in our country.