321 Stainless Steel Bar

321 stainless steel bar has excellent corrosion resistance properties.

321 Stainless Steel Bar Stock

high quality 321 Stainless is an excellent choice for high-temperature applications due to its average austenitic composition.

It is a typical austenitic 18/8 chromium-nickel alloy with titanium added. Moreover, because it has been subjected to high temperatures, it has developed a high level of resistance to intergranular corrosion. Intergranular corrosion is less likely to occur because of the titanium’s strengthening effect on the material. That is why 321 is chosen as the stainless steel of choice for applications that require up to 900° C.

O'Hare 321 Stainless

O’Hare Precision Metals can provide a wide range of company-supplied or customer-supplied components and materials. Just like how we can offer you the best 321 Stainless bar stocks and 321 Stainless round bar stocks in O’Hare!

Why Get 321 Round Bar?

It is a type of stainless steel that has a low carbon content and is resistant to corrosion. It is also easier to machine than other types of stainless steel.

This steel round bar has many advantages over other types of metal because it doesn’t corrode or rust easily.

Here are just some of the many reasons to buy 321 stainless steel bar;

– It has a low carbon content and is resistant to corrosion. it is corrosion-resisting steel with chromium, nickel, and molybdenum as alloying elements.

– The 321 stainless steel bar stock is also easier to machine than other types of stainless steel.

– 321 stainless steel round bar stocks are the most common product that is used in various industries. It is a versatile product that can be used in a variety of applications. It is not just limited to construction, but it also has many other uses such as architectural, industrial, and marine.

Machinability & Welding

Cold working is the only method of hardening 321 stainless. Heat treatment is not an option. It is easily welded using any standard procedure, and it does not require any post-weld annealing after the welding process. 321 Stainless is ductile, which means it can be formed with relative ease. When used in chloride solutions, 321 has excellent corrosion resistance, especially against dilute organic acids; however, it is susceptible to pitting and crevice corrosion, making it unsuitable for these applications.


Chemical Processing, polythionic acid service, and thermal oxidizers are some of the many applications of 321 Stainless.


Tensile strength


Hardness, Brinell 

Proof Stress 

515 MPa

A5 40%


0.2% 205 MPa

Chemical Properties








17.00 – 19.00


9.00 – 12.00





O’Hare’s 321 Stainless Steel Suppliers

O’Hare Precision Metals is your one-stop shop for all your needs. Get the 321 stainless steel round bar, which is a very common type of stainless steel. It is an austenitic grade that offers good corrosion resistance and high strength. 321 stainless steel bar is a type of high-quality stainless steel that has been used for over 50 years. It is well known for its durability and corrosion resistance.

We offer best steel round bar supplies in a variety of shapes, sizes, and finishes. We stock all the most popular sizes and shapes, including round, hexagon, square, rectangle, flat bar, and tube.

This is high-quality stainless steel that is used in many different industries, such as construction, automotive, marine, and more. O’Hare Precision Metals can provide 321 stainless steel bar stock to you at a competitive price.

O’Hare Precision Metals is one of the leading suppliers of 321 stainless steel bar stocks in the market today. We have been supplying customers with high-quality products.

Do you have questions about  321 Stainless? Just contact our highly skilled personnel in O’Hare Precision Metals. They are dedicated to providing smooth-flow service. You can easily call right now and know more about a variety of products.

Request a quote for 321 Stainless bar stocks and 321 Stainless round bar stocks!