Which grade of Stainless Steel is more soft or ductile in Sheet form?

In summary, the conversation discusses the need for a small item to be made from stainless steel sheet of specific dimensions. The desired grade of stainless steel should be soft and ductile, as well as economical. The suggested grades are AISI 304 or 316, with 316 being more corrosion resistant. However, for applications involving contact with human tissue, a low nickel, duplex stainless steel like LDX 2101, 2202, or 2304 may be more suitable. The International Molybdenum Association promotes the use of molybdenum in stainless steel for its synergistic effect with chromium in enhancing corrosion resistance. The website bssa.org.uk provides examples of duplex stainless steels containing molybdenum
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I want to make a small item in Stainless Steel Sheet of 1.2 mm thick, 18 inch width & 24 inch length, by "Metal Forming & Punching of Holes". Please suggest me, which grade of Stainless Steel Sheet is more soft or ductile? It has to be economical as well. Thank you.
I want to make a small item in Stainless Steel Sheet of 1.2 mm thick, 18 inch width & 24 inch length, by "Metal Forming & Punching of Holes". Please suggest me, which grade of Stainless Steel Sheet is more soft or ductile? It has to be economical as well. Thank you.
 
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Annealed austenitic stainless steel is ductile, and most common grades (and therefore economical) are AISI 304 or 316. 316 is more corrosion resistant than 304.

What is the environment, e.g., swimming pool, ocean/sea, contact with human tissue? If in contact with human tissue, e.g., skin, one may wish to use a low nickel, duplex stainless steel, e.g., LDX 2101, 2202 or 2304.

Some examples - https://www.bssa.org.uk/topics.php?article=668

Information on duplex stainless steels containing Mo. Mo has a synergistic effect with Cr in promoting corrosion resistance. Note that the International Molybdenum Association has an interest in promoting the use of Mo.
https://www.imoa.info/molybdenum-uses/molybdenum-grade-stainless-steels/duplex-stainless-steel.php
 
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For some composition information on the various alloys, machining and forming information, performance, environment and chemical compatibility applications, etc, I'd go here:
https://www.rolledalloys.com/technical-resources/

The gauge thickness you have (1.2mm/18 ga) may preclude some alloys that just aren't produced due to market, or if the process for making the material is incompatible with sheet manufacture.

Duplex and super duplex alloys are much stronger than 304/316 grades, and are more difficult to bend and machine.

Can you tell us more about the application?
 

1. What is the difference between soft and ductile stainless steel?

Soft stainless steel refers to a grade of stainless steel that has a lower strength and hardness compared to other grades. Ductile stainless steel, on the other hand, refers to a grade that has the ability to deform under stress without breaking or cracking.

2. Which grade of stainless steel is considered the most soft in sheet form?

The most commonly used soft stainless steel in sheet form is grade 304. This grade has a lower carbon content and is more malleable compared to other grades, making it easier to form into sheets.

3. What factors affect the softness and ductility of stainless steel in sheet form?

The softness and ductility of stainless steel in sheet form can be affected by the grade of stainless steel, the amount of carbon and other alloying elements present, the manufacturing process, and the heat treatment used.

4. Is there a trade-off between softness and ductility in stainless steel?

Generally, the softer the stainless steel, the more ductile it is. However, this also means that it has a lower strength and hardness. Therefore, there is a trade-off between softness and ductility in stainless steel.

5. Can stainless steel be made softer or more ductile through heat treatment?

Yes, heat treatment can be used to alter the properties of stainless steel, including its softness and ductility. For example, annealing can be used to soften the steel, while cold working can increase its ductility.

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