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Several Stainless Steel Pipe Production Processes

Time:2016.03.02 Source: http://www.sssshangshang.com Author:
Stainless steel pipe is really popular in the market. For example, for water supply, we use large-diameter stainless steel pipe for sale. For ship building, we use stainless steel shipbuilding tube which has high strength and high hardness. For boiler and heat exchanger, we use stainless steel pipes which have high resistance to heat. In a word, different types of stainless steel pipes have different applications and different stainless steel pipe production.

There are many stainless steel pipe production processes. For example, it is common to see welding, annealing, passivation and other production processes. People will not be unfamiliar with the welding process as the stainless steel welded pipe is often produced by welding. There are many welding methods and the most widely-used are submerged arc welding and plasma welding. Argon arc welding is also widely used.

Annealing is a kind of stainless steel pipe production process which makes stainless steel pipe for sale brighter and more corrosion resistant. Usually, the bright annealing process needs high temperature which is up to 830°C. After bright annealing, there will be a dense layer of oxide film on the surface of the stainless steel pipe for sale.

Then what is passivation? When the amount of chromium (in the iron matrix) is more than 10.5%, a complex chrome oxide forms instantaneously and it will prevent the further diffusion of oxygen into the surface and result in the passive nature of stainless steel and its resistance to oxidation (or corrosion). After passivation, the surface of the stainless steel pipes will be in silver color and the corrosion resistant properties will be greatly enhanced. Also, the operation of passivation is neither not complex nor expensive.

In addition to welding, annealing and passivation, there are many other stainless steel pipe production processes. All these procedures are aimed to improve the quality and performance of the stainless steel pipes. If you are a wholesaler of stainless steel pipes for sale and don’t know where to find high-quality stainless steel pipes, Shangshang is a good choice for you and all types of stainless steel pipes of high quality and competitive price are available here. For further information about stainless steel pipe for sale, please get in touch with Shangshang by visiting www.sssshangshang.com.