The primary difference between SS 304 and SS 316 stainless steel plates is corrosion resistance. SS 316 offers superior protection, particularly against chloride corrosion. This enhanced corrosion resistance is attributed to the addition of molybdenum. While both are austenitic stainless steels, 316 is generally more expensive due to the addition of molybdenum.
What is the difference between 316L stainless steel and 304 stainless steel?
316 and 316L stainless steel are similar to 304 stainless steel, which is primarily used in the food industry and other applications. However, 316 and 316L stainless steel offer greater corrosion resistance and higher high-temperature strength. They are both non-hardenable through heat treatment and are therefore easily formed.
Differences Between SS 316 Plates and SS 304 Plates
When comparing 316 stainless steel (SS316) and 304 stainless steel (SS304) plate, there are several key differences. SS316 plate is more corrosion-resistant than SS304 and has a higher tolerance to chloride media, making it well-suited for applications exposed to corrosive environments. SS316 also offers higher elevated temperature strength, withstanding temperatures up to 900°C/1650°F without significant degradation. SS316 exhibits higher strength at elevated temperatures than SS304, while both offer excellent hardness characteristics and good mechanical properties. Because SS316 offers greater resistance to pitting and crevice corrosion than lower-grade materials used in SS304 plate, it generally requires lower maintenance costs.
Chemical Composition
SS 304 plate has a lower nickel content, ranging from 8-10.5% nickel and 18-20% chromium. SS 316 plate, on the other hand, has a nickel content of 10-14% and a chromium content of 16-18%. The higher nickel content in SS 316 plate provides superior corrosion resistance in chloride and saltwater environments compared to SS 304 plate.
The difference between SS 316 and SS 304 plate lies in their chemical composition. SS 316 is an austenitic steel containing molybdenum, which makes it more corrosion-resistant than other stainless steels, such as SS 304. The higher molybdenum content also gives it higher tensile strength and toughness, making it more suitable for marine applications or acidic environments. In terms of chemical composition, the main difference is that 304 stainless steel typically contains 18% chromium and 10-14% nickel, while 316 stainless steel contains 16-18% chromium and 12-15% nickel. In addition, the latter also contains 2-3% molybdenum, which is lacking in the former.
Corrosion Resistance
SS 316 plate is generally more corrosion-resistant than SS 304 plate, especially in environments containing chloride ions. This is because SS 316 plate contains a higher molybdenum content, which enhances its resistance to pitting corrosion. However, SS 304 plate still performs well in less corrosive environments.
Both 316 and 304 stainless steel plates are made from alloy steels, but their compositions differ. SS 304 plate contains chromium, nickel, and carbon, while SS 316 plate contains molybdenum along with the elements found in SS 304. This additional element makes SS 316 more corrosion-resistant than SS 304. For coastal or marine environments, use 316 grade stainless steel due to its higher corrosion resistance-up to three times that of standard grades.
Strength
SS 316 plate has higher tensile and yield strength than SS 304 plate. This higher strength is attributed to the addition of molybdenum and a higher nickel content in SS 316 plate. However, SS 304 plate still possesses sufficient strength for most applications.
SS 316 and SS 304 plate differ in their chemical composition. The primary difference is the addition of 2%-3% molybdenum to SS 316, which makes it more corrosion-resistant than SS 304 plate. SS 316 plate also has higher tensile strength and can withstand higher temperatures, making it extremely durable. Due to its higher molybdenum content, SS 316 plate is also more resistant to pitting and crevice corrosion in warm chloride environments.
Gnee Steel is a supplier of SS 316 and SS 304 sheets. Our product offerings include seamless tubes (sizes: 4-219 mm, thickness: 0.5-20 mm); welded tubes (sizes: 5.0-1219.2 mm, thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm, width: 10-2500 mm); strip; alloy round bars (sizes: 3-800 mm, diameter); flat bars (sizes: 2-100 mm, thickness: 10-500 mm); hexagonal bars (sizes: 2-100 mm); wire rods; and extruded sections. We partner with steel mills to provide our customers with 625 alloy that meets or exceeds numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS. Gnee Steel stocks and sells SS 316 Sheet And SS 304 Sheet, pipes, tubes, plates, strips, plates, round bars, flat bars, forging billets, hexagons, wire rods and extruded sections. You are welcome to contact us for a quote at any time at ru@gneesteelgroup.com