SS pipe gasket suppliers in UAE offer mill test reports
Is SS Gaskets Magnetic?
A wide variety of Stainless steel is used to manufacture ss gaskets. And the choice of the suitable one is done based on where it is going to be used. Now coming back to the question of whether they are magnetic, the answer is no, they aren’t. Even if Stainless steel has a percentage of Chromium, the standards used in gaskets are mostly of the 300 series. These have an austenitic structure, and not a ferritic structure. And it is the latter that makes something magnetic. Also, there is some Nickel in these gaskets as well that renders the material non-magnetic.
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How Do I Keep Stainless Steel Ring Gaskets From Rusting?
There are various elements that endanger the working of stainless steel ring gaskets. And rusting and corrosion, if left unchecked can certainly lead to a lot of inconveniences. This is a common issue in seawater applications, where certain alloys of stainless steel are used. Now, to protect SS gaskets from corrosion, it is best to choose an option that is electroplated or has a PTFE coating. While the two work differently, the results are worth it. Another thing that can keep stainless steel ring joint gaskets is to consider the medium and working environment. Choosing the material after doing so can be beneficial in rust prevention.
Stainless steel pipe gaskets stockists offer gasket stainless steel at factory prices in Middle East countries
Advantages of Stainless Steel Pipe Gaskets
Stainless steel pipe gaskets are chosen because of their various advantages. These are:
- Low alloy stainless steel gaskets are cost-effective and suit various applications. Depending on the gasket style and the exact composition, these can handle a considerable amount of pressure.
- Higher alloy stainless steel options are more resistant to corrosion and other such elements. This makes them suitable for use in rougher environments.
- The gaskets are resilient to a variety of chemicals and can handle higher temperatures as well.
- Gasket stainless steel provides efficient sealing, as long as the hardness of the flange face is greater than the gasket.
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Factors Affecting Selection For SS Gasket Ring In Seawater?
The main concern with stainless steel in seawater is crevice corrosion. And a flanged joint is a major source of crevices.
Factors affecting the selection of ss gasket ring in low pressure (up to 10 bar) systems:
- Do not use gaskets loaded with graphite or PTFE.
- Use artificial elastomer gaskets, rubber bonded aromatic polyamide gaskets or those made of synthetic fibre.
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How Much Torque Can A Stainless Gasket Take?
Sealing a gasket involves fixing it on the flange face, most commonly done by bolting. And bolt torque is an essential component. Under and over torque are both harmful for the seal, and can cause leakage. Ensuring optimum bolt torque is thus of importantace for stainless gasket performance.
Now the amount of torque needed depends on:
- The type and material of the gasket
- Gasket pressure rating
- No of bolts involved
- Bolt size
Also, use of lubricants reduces the amount of torque needed for optimum tightness. Bolting is to be done in a manner that ensures a proper seal, without exceeding the yield strength of the bolts.
