Often referred to as “razor-blade steel” due to its frequent use in the manufacture of razors and cutlery, grade 440 stainless steel provides high strength and moderate corrosion resistance. Extremely versatile, it’s used in a wide range of industries to create specialized, small-scale products and is available in various types: 440A, 440B, 440C, and 440F.
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Pump shafts are stainless steel bars that can vary in shape depending on the pump application. These bars, however, are manufactured to a higher standard than common steel bars. Elevated requirements come from a variety of factors:
Stainless steel has become such a common metal that it’s used in everything from home appliances and cutlery to chemical and pharmaceutical, medical, and oil and gas applications. It is so commonly seen by everyone that it is difficult to remember that there was a time when stai
nless steel did not exist.
A History Lesson
Through the early 1900s, advances and discoveries were made that led to the industrialization of stainless steel. In 1912, an English researcher named Harry Brearley discovered stainless steel alloy while searching for ways to create gun barrels that were resistant to corrosion. After applying for a patent, Brearley discovered that an American named Elwood Haynes had also applied for a patent. Brearley and Haynes pooled their funds and formed the American Stainless Steel Corporation.
There's no denying that there was a serious slowdown in the construction industry in Mexico City around 2012 and 2013. General economic lethargy had a huge impact on construction, as both commercial and residential consumers worried about their financial futures. The end result was a Mexico City construction industry that contracted for 9 straight months in 2013 with an overall loss of 4.5%.
As it turns out, it truly was the darkest before the dawn, as 2014 saw steady growth and the 4th quarter of last year saw Mexico's economy grow at its largest rate in two years. The GDP climbed 2.6% from 2013 to 2014, and most experts are predicting a breakout construction year in 2015.
At first glance, buying pipe may appear to be confusing, but once you understand the basics, it becomes much easier. Determining the grade of steel is the first step in the process. This provides a basis for additional questions to narrow down the best possible product.