Stainless steel 400 series vs 300

What is the difference between 188 and 1810 stainless steel. Austenitic stainless steel 300 series contains 1630% chromium. The 400 series group of stainless steels typically have an 11% chromium and 1% manganese increase, above the 300 series group. These efforts were similar and overlapped significantly. These stainless steels generally contain chromium and manganese and are magnetic. The 400 series, stainless steel has a ferritic crystal structure. Differences between grades of stainless steel career trend. It is now considered a costeffective substitute for 300 series stainless steels that can provide an additional benefit of improved yield strength. Stainless steel rolled steel products carries a wide range of finishes and types in both 300 400 series stainless steel sheet and coil. Stainless steel with this mix uses 188 as its name as well as the 300 series number. How to tell the difference between 300,400 and 600 series.

This chart is intended for reference only and not for design. We are your one stop service center for all prime stainless requirements. The sae steel grades system is a standard alloy numbering system sae j1086 numbering metals and alloys for steel grades maintained by sae international in the 1930s and 1940s, the american iron and steel institute aisi and sae were both involved in efforts to standardize such a numbering system for steels. Available in three grades 440a, 440b, 440c more common and 440f free. The 300 series stainless steel has an austenitic crystal structure. The 400 series which just contains chromium and no nickel. What is the difference between 300 series and 400 series. The 200 series also referred to as chromiummanganese crmn stainless steelswere developed in the 1940s and 1950s when nickel was in short supply and prices were high. The 300 and 400 series stainless steel are the most widely used and most advantageous of all stainless steel products. The 400 series of stainless steels have a martensitic crystalline structure that has. Two, known as 430 and 304, have different properties that come from mixtures of iron and other metals in slightly different amounts.

This table is intended for reference use and not for design purposes. Ferritic stainless steel 400 series contains 1020% chromium and has. What is the difference between 300 series and 400 series of. The main difference between the two materials is the higher. It can be hardened to rockwell 58 hardness, making it one of the hardest stainless steels. This stainless steel series tends to be susceptible to rust and corrosion under some conditions although heattreating will harden them. Stainless steel is one of the most common materials used in metal spinning specifically the 300 and 400 series and is ideal for a wide range of applications and industries. Stainless steels are ironbase alloys containing 10. Stainless steel with this mix uses 188 as its name as well as the 300series. I am a student that are interested in studying the stainless steel corrosion. The 300 series has 18percent chromium and 8percent nickel added to the steel. Technical resources ssina ssina specialty steel industry of. This is an austenitic stainless steel, so it is easier to weld than some other stainless steels. The sae steel grades system is a standard alloy numbering system sae j1086 numbering.

The 300 series which contains nickel is not magnetic. Call michlin today for a quote on your metal needs. Stainless steel, a rustresistant variation of ordinary steel, comes in many standard types, each identified by a number. Stainless steel 300 and 400 series helander helander metal. If youre using steel parts in a place that may come in contact with food or. The 400 series group of stainless steels has an 11 percent chromium and 1 percent manganese increase, above the 300 series group. Based on my understanding so far, sus 303 or the 300 series can withstand corrosion especially in a salted environment due to the existence of nickel in its composition compared to the sus 400 series.