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19 March 2026 at 20:45 • 5 mins read
Stainless steel is an extremely popular and valuable metal alloy that delivers numerous beneficial features to nearly unlimited applications worldwide. Both 304 and 316 grade stainless steel products possess some of the best corrosion resistance within the world of metal. Each alloy grade maintains its unique properties, providing variations that allow 316 and 304 stainless steels for similar and individually unique industrial applications.
Stainless steel is one of the most popular and well-recognized metals, known for its attractive appearance, low maintenance requirements, and resistance to corrosion and staining. Unlike regular carbon steel, stainless steel does not readily corrode in the presence of water. When the strength and toughness of steel are required, along with the need for corrosion resistance, stainless is often the answer. All types of stainless steel contain at least 10% chromium by weight.
Premium grade 316 stainless steel comprises iron with added
chromium, nickel, silicon, manganese, carbon, and molybdenum
properties. The added molybdenum content within 316 allows for
enhanced corrosion resistance and protection against acids and
chlorides, allowing it to be used in all types of marine
applications.
Stainless Steel 316
Advantages:
316 Stainless Steel Applications:
The chemical composition of 316 stainless steel includes:
| Element | Composition % |
| Chromium | 16-18 |
| Nickel | 10-14 |
| Molybdenum | 2-3 |
| Manganese | 2 (Max) |
| Iron | Balance |
Regarded as the most common austenitic stainless steel, 304
displays a nickel and chromium content that provides good corrosion
resistance. Stainless steel 304 is also easy to sanitize, making it
ideal for a wide range of applications within the food production
industry. Due to its minimum of 18% chromium and 8% nickel, type 304
stainless steel is often referred to as 18-8 stainless steel. It is
available in various forms and can be easily formed and
fabricated.
Stainless Steel 304 Advantages:
304 Stainless Steel Applications:
The chemical composition of 304 stainless steel includes:
| Element | Composition % |
| Chromium | 18 |
| Nickel | 8 |
| Manganese | 2 (Max) |
| Iron | Balance |
Comparing 316 Stainless Steel & 304 Stainless
Steels
The most fundamental difference between grade
304 and grade 316 stainless steel is that 316 tends to have more
nickel and a bit of molybdenum in the mix. The general mechanical
properties of the two metals are primarily comparable. The
following table compares some of the most valuable qualities of 304
and 316 SS:
| SS Type | 0.2% Yield Strength/RpO/MPa | Tensile Strength/Rm/MPa | Brinell Hardness/HB Max |
| 316 SS | 240 | 530-680 | 120-180 |
| 304 SS | 230 | 540-750 | 130-180 |
Grade 316 stainless steel’s high nickel content and inclusion of molybdenum allow grade 316 stainless steel to have better chemical resistance than 304 stainless steel. Its ability to resist acids and chlorides, including salt, makes grade 316 ideal for chemical processing and marine applications.
The melting point of grade 304 stainless steel is a bit higher than that of grade 316. The melting range of 316 is 2,500 °F – 2,550 °F (1,371 °C – 1,399 °C), roughly 50 to 100 degrees Fahrenheit lower than the melting point of grade 304 stainless steel.
When it comes to machinability, grade 304 is much easier to machine than 316 grade stainless steel. Since it is less expensive and easier to fabricate, stainless steel 304 alloy is the most widely used austenitic stainless steel in the world. Special tools are required to properly machine stainless steel alloy 316, which means that 316 is often reserved exclusively for applications that require its unique properties.
Due to its chemical nature and self-healing capabilities, stainless steel does not rust. The elements within stainless steel interact with the oxygen in the air to form a protective layer that shields the iron within the stainless steel from oxidation, which leads to rust. Since type 316 stainless steel contains molybdenum, its corrosion-resistant properties exceed those of 304.
Even though stainless steel 304 has a higher melting point, grade
316 has better resistance to chemicals and chlorides (like salt) than
grade 304 stainless steel. Regarding applications with chlorinated
solutions or exposure to salt, grade 316 stainless steel is considered
superior.
When comparing 304 versus 316 stainless steels, it is
essential to note that 316 is regarded as the superior alloy of the
two grades. However, with that designation comes an increased price
point and performance advantages that, depending on your application,
may or may not be worth the extra cost. The stainless steel that is
best for your project will depend on specification requirements.
Contact us for more information regarding our high-quality 316 and 304 stainless steel product options, or request a quote for detailed pricing information today. IMS is your trusted source for premium 316 and 304 stainless steel materials.