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304 or 316 SS flange, which can be a better option, and the answer is ‘it depends
REMINDER:
304 ss flange and 316 ss flange are grades of stainless steel flanges.
So, SS flanges are equipment that connects segments of pipe systems like pipe or tubing to components such as valves, pumps, or other equipment types. Their use is commonly seen in sectors like petrochemical, chemical, power generation plants, and water-processing units. SS flanges have various types, which include Weld-neck, Slip-on, threaded, etc
And why use SS flanges? Here’s why:
Now SS flanges are available in various grades like 304/304L, 306/316L, 304 H, 316 H, 321/321 H, 310/310 S, 347/347H, chrome, and Duplex, which vary in their capacity to
resist corrosion.
But the commonly used ones are the 304 and 316, so which one to choose?
A 304 ss flange.
It’s an alloy with 18% chromium and 8% nickel and a strong capacity for resisting corrosion. This alloy mixture makes the SS flange capable of low-moderate temperature or pressure conditions, and they are also more affordable than high-grade flanges for such moderate conditions.
On another side.
316 SS flange also is the same alloy of nickel and chromium with an extra amount of content but with the addition of molybdenum. This gives the flange an increased capacity to resist corrosion caused by chlorine compounds and many industrial solvents, making it a good option for demanding and extreme condition use. And due to the composition changes in 316, the flanges have an enhanced capacity to not corrode in hostile, demanding environments.
But to conclude, it depends on your applications, the environmental components like temperature and pressures, and exposure to chemicals in which the flanges will be used.
With your research, we would also recommend consulting professionals, and Alkulsteel has professional services to help you out. So dail tel: +971-563618951 or email us at Huzefa@alkunsteel.com so that we can help you set up your dreams.