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Is it required to do pickling and passivation on Tube to tube sheet welding on Stainless Steel Heat exchangers?
Wiki User
∙ 10y ago
yes
Wiki User
∙ 10y ago
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When expansion bellows are required in heat exchangers?
To absorb thermal stresses.
What is passivation,and how is it used?
Passivation is the process of making metals resistant to chemical changes. In many cases you do this by leaving them submersed in a substance like Nitric Acid for a prescibed length of time. Each type of metal would have a specific process required.
Should the floor liner required for division 1.1 or 1.2 materials be stainless steel?
no
Where would one be able to purchase stainless steel screws?
Common stainless steel screws can typically be purchased at a local hardware or lumber store. However, if special sized stainless steel screws are required, they can be purchased though a catalog company, such as MSC.
Force required to upset a .38 in diameter 302 stainless steel solid rivet?
15 tons
Where can one purchase a stainless steel ring?
A Stainless steel ring can be purchased in kitchenware stores if it is a ring that is required for kitchen use. It can also be purchased more generally in homeware stores or sections of large supermarkets.
Why need to use argon gas for stainless steel welding process?
At the temperature required for welding, austenitic stainless steel passivate so rapidly in the presence of atmospheric oxygen that a strong weld bond can not be formed.
In a corrosive environment where a conductive metal is required is brass or stainless steel better?
Brass has better conduction than stainless steel. being roughly 65 percent copper which is one of the best conductors (thermal and electrical)
Does silicon reacts with oxygen?
Yes. Solid silicon oxidises in air to form a thin layer of SiO2 on the surface- however this forms a passivation layer preventing further reaction. High temperature are required to ensure complete reaction.
When a cocktail fork says stainless on the back is it silver?
If it says "stainless" it just means that it's made of stainless steel with no specific grade (certain items made with a certain grade of stainless steel will have markings indicating the specific type used, like 316L). If it's silver, most areas of manufacturers are required to stamp a 3-digit number indicate the purity (usually 925, indicating 92.5% pure silver, AKA "sterling silver").
What steps are required in order to create a pickle?
To create a pickle one must first have a cucumber, quick process pickling mix, clear vinegar, and pickling jars. Clean the cucumbers, cut them into smaller pieces if desired. Combine pickling mix and vinegar together in a non-metal pot, and bring it to a boil. Fill the jars with cucumbers and pour the boiled pickle mix into the jars. Seal the jars, then boil them in a pot of water. Remove jars from water, and set aside to cool. The pickles can be eaten after 24 hours, though it is best to wait two weeks.
What is the density of 301 stainless steel?
301 stainless density values seem to vary according to the supplier data sheets, from 7.88 g/cc, (AK Steel) to 8.03 g/cc, (Allegheny Ludlum). I guess the key factor in answering this enquiry is identifying the accuracy required.
