STEEL PIPE
Global Welded Steel Pipe Market size will increase to xx Million US$ by 2025, from xx Million US$ in 2017, at a CAGR of xx% during the forecast period.
Top Key Players of the Global Welded Steel Pipe Market :
CENTRAVIS, Tenaris, Bao Steel, AN Steel, Jiangsu ChengDe Steel Tube Share Co, Tianjin Pipe Corporation, Suzhou Boxin, Hunan Great Steel Pipe Co, Pearlite Steel, MST, Bri-Steel Manufacturing, RATNAMANI, JFE Steel, Shanghai Metal Corporation, Hengyang Valin Steel Tube Co, Hunan Standard Steel Co, Hebei Zhonghai Steel Pipe Manufacturing Corporation
Leading key players of the global Welded Steel Pipe market are analyzed taking into account their market share, recent developments, new product launches, partnerships, mergers or acquisitions, and markets served. We also provide an exhaustive analysis of their product portfolios to explore the products and applications they concentrate on when operating in the global Welded Steel Pipe market. Furthermore, the report offers two separate market forecasts – one for the production side and another for the consumption side of the global Welded Steel Pipe market. It also provides useful recommendations for new as well as established players of the global Welded Steel Pipe market.
Global Welded Steel Pipe Market Segmentation By Product :
Cold drawing processing technique, Hot rolling processing technique
Global Welded Steel Pipe Market Segm
What is the crevice corrosion of stainless steel pipes?
There may be metallic or non-metallic deposit sediment on the surfaces of stainless steel pipes, and the deposit sediment will form the crevice with the surfaces of stainless steel pipes. Under the effects of corrosive media, the pitting corrosion will happen and the ulcer-like damage will be caused on the crevice of the stainless steel pipe first, which is called the crevice corrosion. In the liquid medium with the chloride ion, the acidification (the concentration of the chloride ion increased and the PH value decreased) of the medium solution in the crevice as well as the hypoxia will bring the partial damage to the passive film.
The most fundamental way to eliminate the crevice is to avoid the existence of the crevice in the structural design. The crevice at the joint of the heat exchanger pipe and the tube sheet as well as the crevice on the flange, the gasket, the bolt, etc. are supposed to be effectively prevented through appropriate measures. Stainless steel pipes should be cleaned regularly so as to prevent the dirt from accumulating on the surface of the stainless steel pipe. Generally, the stainless steel pipe made of the high chromium and molybdenum as well as that made of the high chromium, molybdenum and nitrogen have good corrosion resistance. It can be seen that in order to solve the crevice corrosion, starting from the selection of the raw material is more difficult and costs more money than solving the pitting corrosion problem.
Factors affecting corrosion fatigue of stainless steel tubes
The joint effect of the alternating stress and the medium can cause the local corrosion of the stainless steel pipes. There are many reasons for the corrosion fatigue caused by the combined action of mechanics (dynamic stress) and electrochemistry (corrosive media), and there is no consistent conclusion has been reached yet. In the case of the generation mechanism, the pitting stress concentration model, the optimum solvation of the metamorphic metal mo