Are you also confused between 304 vs 316L stainless steel grades?
Not all stainless steel is created equal. At first glance, they look very similar, and in many everyday situations, you could use either.
However, upon closer examination, there are differences in how they are made, how they perform, and how much they cost. Those differences can matter a lot depending on where and how the steel will be used, especially if we consider industrial and commercial use.
Let’s go through them step by step and understand 304 vs 316L Stainless Steel. And by the end of this blog, you’ll surely be able to decide which one is worth the investment.
304 stainless steel is the most common type of stainless steel. It’s often called “18/8” steel because it has about 18% chromium and 8% nickel. The chromium gives it corrosion resistance and the shiny surface you expect from stainless steel, while the nickel adds strength and helps keep the metal stable.
This grade is popular because it’s affordable, easy to work with and reliable in most environments. You’ll find it in kitchen appliances, cutlery, food processing equipment, building panels and even car parts. It’s a good balance of strength, ease of fabrication and rust protection in normal conditions, which makes it a good choice for many uses.
316L stainless steel is a low-carbon version of 316; it’s known for its excellent corrosion resistance and strength.
The “L” stands for “low carbon”, which helps prevent corrosion after welding or exposure to high temperatures. It has molybdenum, which makes it highly resistant to saltwater, chemicals and acidic environments.
Because of its durability and cleanliness, 316L is used in industries like pharmaceuticals, food processing, marine and medical equipment.
It gives long-lasting performance, less maintenance and more safety, which is why it’s one of the most trusted stainless steel grades for demanding and harsh industrial conditions worldwide.
|
Property |
304 Stainless Steel |
316L Stainless Steel |
|
Composition |
Contains 18% chromium and 8% nickel. |
Contains 16% chromium, 10% nickel, and 2–3% molybdenum, with a lower carbon content (maximum 0.03%) than standard 316. |
|
Corrosion Resistance |
Performs well in most indoor and outdoor settings but can corrode in salty, coastal, or highly chemical environments. |
Excellent resistance to chlorides, acids, and harsh chemicals. The low carbon minimises carbide precipitation during welding, improving corrosion resistance. |
|
Strength and Durability |
High tensile strength and good mechanical performance under normal conditions (515 MPa). |
Similar tensile strength (515 MPa) but maintains it better in extreme or corrosive environments. Low carbon improves resistance to intergranular corrosion after welding. |
|
Temperature Resistance |
Performs well up to about 870°C (intermittent) and 925°C (continuous) service. |
Good oxidation resistance in intermittent service up to 870 °C and continuous service up to 925 °C, similar to 304. Slightly less oxidation resistance at very high temperatures due to molybdenum, but superior performance in corrosive and low-temperature environments. |
|
Magnetism |
Generally non-magnetic, though it may become slightly magnetic after cold working. |
Non-magnetic and retains non-magnetic properties after fabrication or welding. |
|
Weldability and Fabrication |
Easy to weld, cut, and form. Commonly used in general manufacturing. |
Excellent weldability; low carbon level prevents sensitisation, making it ideal for welded components in corrosive environments. |
|
Appearance |
Bright, smooth, reflective finish suitable for decorative and structural use. |
Similar aesthetic, but used where both appearance and corrosion resistance are critical. |
|
Cost |
More economical and widely available. Ideal for large-scale or cost-sensitive projects. |
More expensive due to molybdenum and higher nickel content, but provides long-term value in demanding environments. |
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Typical Applications |
Kitchenware, sinks, food processing equipment, architectural panels, and automotive trim. |
Marine fittings, medical instruments, pharmaceutical and chemical processing equipment, and offshore structures. |
Want to know the features? Read stainless steel tank features
Deciding between 304 and 316L stainless steel is all about finding what’s right for you.
If your industry is in a normal environment with no salt, moisture or chemicals, 304 stainless steel is a great choice. It’s strong, easy to work with and performs well for most applications.
But if your industry deals with cleaning agents or is in demanding environments, 316L stainless steel is the way to go.
Its molybdenum content gives it excellent rust and corrosion resistance. Though at first you may think it is a little expensive, the benefits it provides in the long run are unmatched by the alternative options.
At Beltecno, we combine the best of 304 and 316L stainless steel in our tanks. So every product of ours delivers strength, reliability and superior corrosion protection without any doubt.
Whatever your industry, Beletcno tanks perform the best in all conditions. They’re durable, low maintenance and built to support your success for years to come.
Read about the application of stainless steel tanks across various industries.
Mainly, it depends on your industry usage. Both of these stainless steel grade has their own features and benefits. If you are dealing with a salt or highly non-moisture environment, 304 works best, but if you are dealing with the opposite, 316L wins.
If you are considering buying a stainless steel water tank, Beltecno is one of the best water tank manufacturers that combines both these grades.
Both are food-safe and used in the food industry. However, 316L is preferred in food processing that involves cleaning with strong chemicals due to its superior corrosion resistance.
The main limitation of 304 is that it’s not the best for salty or chlorine-rich environments. Over time, it may develop pitting or corrosion in those conditions. It’s also slightly less resistant to strong acids and cleaning agents compared to 316L.
Yes, 316L is expensive than 304. The added molybdenum and nickel make it stronger and more corrosion-resistant, which adds to the cost. But in environments exposed to moisture, salt or chemicals, the extra cost pays off with a longer life and less maintenance.
No, 316L doesn’t go green like copper tanks or any other tanks.
Selecting the right tank can make all the difference. Beltecno tanks combine the best of both stainless steel grades and deliver quality stainless steel panel tanks to its customers.
Have doubts or thinking about getting your perfect tank? Contact Us!