Stainless Steel Grades

A reliable source for Stainless Steel information and leading Stainless Steel Companies & Manufacturers.

Of all the different series, the 200, 300 and 400 series are the most common. Stainless steel is graded through consideration of the environment that it will be assigned to. Read More…

Stainless Steel Grades There is an incredible variety of stainless steel grades available, which are categorized into six different series: 100 series, 200 series, 300 series, 400 series, 500 series and 600 series.

Leading Manufacturers

Sound Beach, NY  |  631-821-1101

We provide the best products in the stainless steel industry. Our customers know they can trust us for quality, affordability, and convenience. Our multiple locations make it easy to get what you need within days! Some orders can be shipped on the same day for extremely fast delivery. Find out how we can help you by contacting us today! We’d love to help you find what you need.

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Source 21, Inc. $$$

Chester, NY  |  845-469-3899

Cada Stainless is a distributor of stainless steel in strip, coil & sheet. All grades of stainless steel available- annealed, tempered in 301,302,304,316, straight and L grades, 17/4, 17/7, 420,430,440, temper rolling to specific thicknesses & tolerances available. We are ISO 9000 certified! With competitive prices & quality service, we can help your company get through these strange market times!

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Cada Stainless & Alloys $$$

Long Island City, NY  |  800-767-9494

Metalmen provides worldwide distribution of all stainless steel. With our wide range of products, we offer expert market advice and complete metalworking as a custom response supplier serving industry. We have been providing engineering and research for over 30 years. Fast delivery of so many on-demand and specialty metals; non-standards and small quantities welcomed!

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Metalmen $$$

Pompton Plains, NJ  |  800-838-1978

When people think of stainless steel they think of us! We strive to achieve 100% customer satisfaction in order to keep them coming back to us for all of their stainless steel needs. Our amazing staff will provide you with excellent care and the fabulous customer service that we are known for. Browse through the products on our website in order to let us know exactly what it is that you need. We will do our best to accommodate whatever product you may need. Contact us today!

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Metal Associates $$$

Monroe, CT  |  475-231-1090

At Production Metals, we aim to provide high quality products, top-notch customer service, and use our superior product knowledge to ensure you get the product you need. We offer stainless steel rods and bars with diameters from 1/4" to 5". Various grades are also available, including 303 ULTRA, 304/L, 316/L, and more. We also offer precision cutting services with tolerances held up to P/M .005" Visit our website or call to get started!

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Production Metals $$$

Chicago, IL  |  312-292-5000

Stainless steel is one of the many types of metals we supply at Ryerson, including stainless sheet, coil, plate, bars, structurals, tubing & pipe. As a leading metals distributor & processor, we have unparalleled service centers throughout the US & Canada offering exceptional product range & fabrication capabilities.

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Ryerson Inc. $$$

Streetsboro, OH  |  440-287-0150

Integrity Stainless is a distributor of stainless steel sheets, coil and strip coil. Since 2005, we have been offering cost effective stainless steel solutions for fabricators and manufacturers across the United States. We are committed to providing the ultimate customer service experience. We deal in prime and secondary stainless steel.

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Integrity Stainless $$$
placeholder image Source 21, Inc. Cada Stainless & Alloys Metalmen Metal Associates Production Metals Ryerson Inc. Integrity Stainless

The typical stainless steel grading system used for stainless steel is the Society of Automotive Engineers (SAE) Grades, which is designated by the SAE, and the UNS grades. Since stainless steel is an iron-based alloy, stainless steel grades contain a minimum of 11% chromium. In addition to chromium, alloys such as molybdenum, copper and titanium may be added to amplify certain properties.

Some overarching characteristics of stainless steel include corrosion-resistance, high ductility, weldability and cryogenic toughness. Another benefit of stainless steel grades is that they are totally recyclable, creating increasing demand amongst environmentally-friendly consumers.

Stainless Steel Rods Stainless Steel Grades - Metal Associates

Additionally, stainless steel grades have wide-ranging applications such as consumer appliances, automotive exhausts, surgical instruments, heaters, valves, knife blades, chemical tanks, heat exchangers and spring clips. As a result, stainless steel grades are utilized in numerous industries including medical, automotive, manufacturing, aerospace, printing, marine and petrochemical.

The different series of stainless steel grades all have unique characteristics. The 100 through the 300 series are all various grades of austenitic stainless steel, which is the most common type of stainless steel in production. Some characteristics that are unique to the 100 series include the composition of austenitic chromium-nickel-manganese alloys that are available in two types: type 101, which can be hardened through cold working; and type 102, which is a more general purpose type of stainless steel. Both types are often used in furniture. The 200 series is also composed of austenitic chromium-nickel-manganese alloys, although the percentages differ.

This series includes type 201 and type 202, which mirror the 100 series types. The 300 series is the largest series and are composed of austenitic chromium-nickel alloys. Some types within these series feature the addition of molybdenum for increased corrosion resistance and changing carbon content depending on their designated environment. Types 304 and 316 are the most common types in the 300 series.

The 400 series includes various grades of ferritic and martensitic stainless steel and are all composed of chromium alloys. The types of stainless steel in this series are magnetic and typically contain 11% chromium and 1% manganese. The 500 series consists of heat-resistant chromium alloys and is not very large or commonly used. Lastly, the 600 series consists of martensitic precipitation-hardening alloys that can undergo heat treatment and attain high strength levels.

Stainless Steel Grades Informational Video