Sa312 Tp316
Sa312 Tp316
Sa312 Tp316
Sa312 Tp316

Sa312 Tp316

316 stainless steel tube It is a kind of hollow long circular steel, mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial transportation pipelines and mechanical structural components.

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Product Introduction

sa312 tp316

True and false identification

Internationally, the corrosion resistance of materials is divided into three categories according to the annual corrosion rate, the first category is complete corrosion resistance,
Its corrosion rate is less than 0.1mm/ year, high-quality stainless steel belongs to this kind of material; The second type is still resistant to corrosion, and its corrosion rate is 0.1-1.0mm/ year, which belongs to general stainless steel; The third type is non-corrosion resistant, and its corrosion rate is greater than 1.0mm per year. After analysis, the corrosion rate of the counterfeit stainless steel products found this time is as high as 9.67mm/ year, which is a serious corrosion resistance. When further analyzing the composition of the product, it was found that the chromium content of the product, which represents the important indicators of stainless steel, is only 10.03% and 7.1%, which is far lower than the minimum demand of 10.5% for chromium in stainless steel. In general, the chromium content of more than 10.5% of the iron based alloy is called stainless steel, and the chromium content of these two products is far lower than this lower limit, the product is not stainless steel. The reason why this product appears on the market is mainly that the producers are motivated by profit, and the loopholes that the people lack of understanding of stainless steel are used to fabricate. It is generally believed that stainless steel is not magnetic, counterfeiters through the use of a large number of manganese instead of nickel, change the composition of the product, get a magnetic, cost and extremely low material, so as to achieve the purpose of high profits. The appearance of the product in the market circulation and usually stainless steel is difficult to distinguish, at the same time, because there is no magnetic, coupled with illegal dealers to take doping mixed tricks, to distinguish the authenticity of consumers caused a great difficulty, after use will cause unforeseen consequences. In addition, a small amount of nickel is used in this material, but it cannot play the role that nickel should play, which is a waste of precious metals, resulting in a certain waste of resources.