This is an austenitic stainless steel, so it is easier to weld than some other stainless steels. It can maintain good strength and heat resistance in high temperature and low temperature environments, and also has good corrosion resistance, weldability, cold workability and mechanical properties in the mild. It may be used in either the annealed, cold formed or aswelded condition in many applications where other stainless steel alloys such as type 304, type 410, type 409. It is the standard 188 stainless that is commonly found in pans and cooking tools. This series of stainless steel alloys are known to resist corrosion while maintaining their strength at high temperatures. Austenitic 300 series stainless steel, in particular, type 304 and 316 or sometimes 400 series is used, is the material of choice for the food and beverage industry. Wire is most commonly used for spring making where corrosion resistance is of a high priority. Chemical and physical properties of stainless steel. Call michlin today for a quote on your metal needs. Understanding and machining 300 series stainless steel. Austentic stainless steel has a wide range of mechanical properties and can withstand a wide. Grade 416 stainless steel is a martensitic stainless steel similar to type 410.
The grades of stainless steel castings signicast most often produces respond to heat treatment and can be supplied with a predominantly martensitic microstructure in a wide range of strength and hardness. The 300 series stainless steel has an austenitic crystal structure. Each type of stainless steel is classified by its series number and then assigned a numerical grade. Type 316 is the next most common austenitic stainless steel. Type 304 is the most widely used alloy of all stainless steels. There are many numerical grading systems for stainless steel, designated according to their composition, physical properties, and applications. It is now considered a costeffective substitute for 300 series stainless steels that can provide an additional benefit of improved yield strength. The 300series group of stainless steels contain 1630% chromium and from 6 35% nickel. Type 304 is extensively used in such items as, cookware, cutlery, and kitchen equipment. Sus304 material is a japanese jis standard and the most commonly used stainless steel, containing 18% cr and 8% ni. If youre using steel parts in a place that may come in contact with food or. They feature the right mix of strength, weldability. The 200 series is a class of austenitic and highly corrosionresistant stainless steels that are characterized by having low nickel content. Er309l hisil 309l modified to help overcome the typical sluggish nature of 300 series stainless steel welding puddles.
Tables of technical properties international stainless steel. Theyre defined by their facecentered cubic structure. Sus304 stainless steel material properties, chemical. The important point in all this is that by understanding some of the key characteristics of stainless steel, youll be better able to. Alloy 304 is the most versatile and widely used alloy in the stainless steel family. Grade 416 can be hardened similarly to other 400 series stainless steels. Martensitic stainless steels offer a wide range of properties and are used as stainless engineering steels, stainless tool steels, and creep resisting steels.
Depending on the composition of these stainless steel castings, the microstructure is predominantly or wholly austenitic and thus unresponsive to heat treatment. The 300 series consist of austenitic chromiumnickel alloys. The most common grade for spring making is type 302 spring wire. This titanium addition reduces or prevents carbide precipitation during welding and in 800 1500f service. Differences between grades of stainless steel career trend. Three general classifications are used to identify stainless steels. Type 430 is ductile, has good forming characteristic and is readily fabricated by such operations as bending, pressing, drawing and heading. Austentic stainless steel has a wide range of mechanical properties and can. All values shown indicate the maximum percentage unless otherwise noted. The exact composition of the alloy elements in stainless steel provides the material with specific structural characteristics. Stainless steels do not affect the taste of the product, they are easily cleaned and sterilized to prevent bacterial contamination of the food, and they are durable. Is it that a magnetic stainless steel is the austenitic stainless group is 188 steel, aka 300 series like it will once again lose its magnetic properties. This property data is a summary of similar materials in the matweb database for the category t 300 series stainless steel.
Stainless steel with this mix uses 188 as its name as well as the 300series number. The 400 series group of stainless steels typically have an 11% chromium and 1% manganese increase, above the 300 series group. Most stainless steel sinks are usually in the 300 series, usually 304 to be specific. I have been learning how to operate setup and conversationally program a hurco vm10i and i.
Understanding and machining 300 series stainless steel 304316 hello everyone, let me start by first saying how much of a huge help this forum has been in my milling education. Theyre also referred to as chromemanganese crmn stainless steel. Care was taken to include as much information as possible about stainless steel flat products used throughout europe, for the informatio n of the user. Choosing the correct grade of stainless steel is essential to ensuring that your product is of the right quality and that no damage is experienced along the way. Now that you know the difference between 188, 304 and 316grade stainless steel, you can make a better choice for your application in terms of fasteners. Chemical and physical properties are in accordance with en 10088.
They are austenitic in the annealed state, but martensitic in the hardened condition. Its tendency to work harden is much less than that of the nickelbearing 300 series stainless steel. The 304 stainless steel is classified as a t 300 series austenitic stainless steel alloy, containing a minimum of 8 percent nickel and 18 percent chromium with a maximum of 0. While the 304 grade is the most widely used alloy of all stainless steels, the 300 series grades are inventoried in stainless steel. What makes 300 series steel different from the rest.
These tables are intended for estimating purposes only and lists typical chemical properties for a variety of 300 and 400 series stainless steel grades. Overview of materials for t 300 series stainless steel matweb. Austenitic stainless steel, which is usually referred to as the 300 series, is ideally suited to laser welding, table 4. The 304, 316 and 316l stainless steel formulas are the most commonly specified. It contains the alloys chromium and nickel, and is considered very. They feature the right mix of strength, weldability, corrosion resistance and economical cost. Austenitic 300 series stainless steel filler metals. The 300series group of stainless steels contain 1630% chromium and from 635% nickel. It is nonmagnetic in the annealed condition and is not hardenable by heat treatment. They are also used in high temperature instruments such as in electric furnaces, pharmaceutical appliances, nuclear appliances, power plants, railway coaches, automobiles etc. The principle difference between 300 series of stainless steel and this series was that the nickel used in 300 series of stainless steel was partly replaced by manganese and nitrogen. Michlin metals supplies stainless steel in 300 and 400 series grades as well as ph and duplex grades.
Physical properties of stainless steel chemical properties of stainless steel stainless steel physical properties. Er309er309l used to join similar 309l alloys or 300 series stainless steels to carbon or lowalloy steels. At texcellent industries, we have many sizes of 416 stainless in stock, including heat treated to both 2832 rc and. Stainless steel and particularly 300 series formulasare a popular choice for a wide variety of piping applications. The most popular series numbers are 200, 300, 400, 600, and 2000. High ductility, excellent drawing, forming, and spinning properties. Steels with crmnnin composition were called 200 series of stainless steel.
While the 304 grade is the most widely used alloy of all stainless steels, the 300 series grades are inventoried in stainless steel plate, sheet, bar, pipe, tube and fittings and much more. In its most basic form, chromium is added to ordinary steel in order to become. It is an excellent material to use for general outdoor purposes. Stainless steel hex bolt grades 300 series hex bolts. What is the difference between 300 series and 400 series. The 400 series, stainless steel has a ferritic crystal structure. Ak steel 177 ph stainless steel has excellent high strength and fatigue properties, and is used in aerospace components. This creates superior corrosion resistance and ease of fabrication.
Other grades commonly stocked are type 304 and type 316. Stainless steel alloys resist corrosion, maintain their strength at high temperatures and are easy to maintain. Mechanical properties of stainless steels flat products. Austenitic stainless steel has a thermal conductivity of one third of carbon steel and is a superior absorber of laser. When nickel is added to stainless steel in sufficient amounts, the crystal structure changes to austenite. About 0% of these are steel pipes, 24% are stainless steel pipes, and 0% are steel sheets. The 200 seriesalso referred to as chromiummanganese crmn stainless steelswere developed in the 1940s and 1950s when nickel was in short supply and prices were high. Essentially nonmagnetic, becomes slightly magnetic when cold worked. These grades of stainless have approximately 18% to 30% chromium and 6% to 20% nickel as their major alloying additions. It is a modification of type 304 in which the chromium and nickel contents are lowered to increase the cold workhardening range. Grade 416 is free machining and is the most easily machined stainless steel. This stainless steel series tends to be susceptible to rust and corrosion under some conditions although heattreating will harden them. Alloy 304 is a t300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel with a maximum of 0.
The most common austenitic stainless steel and most common of all stainless steel is type 304, also known as 188 or a2. This grade of steel also has excellent drawing properties. The basic composition of 300 series austenitic stainless. A wide variety of 300 series stainless steel properties options are available to you, such as technique, grade, and standard. The 300 series stainless steels are easily welded and machined but readily work hardened. Reference is often made to stainless steel in the singular sense as if it were one material. Stainless steeland particularly 300series formulasare a popular choice for a wide variety of piping applications. Alloy 304 is a t 300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel with a maximum of 0.