Stainless steel is a rust and corrosion-resistant iron alloy. Stainless steel alloys often contain at least 11% chromium. The alloy gains useful qualities when adding various chemicals and metals. The chromium creates a passive layer that shields the metal and self-heals in the presence of oxygen. This creates the corrosion-resistant quality that makes stainless steel alloy useful. Stainless steel is recyclable and accommodates sustainable building requirements. Read More…
Leading Manufacturers
Source 21, Inc.
Sound Beach, NY | 631-821-1101We 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!
Cada Stainless & Alloys
Chester, NY | 845-469-3899Cada 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.
Metal Associates
Pompton Plains, NJ | 800-838-1978Our company may have started small, but we quickly grew to handle the largest aluminum orders. Our metals are made from the highest quality materials, and we pledge to offer superior service to all our customers. We don’t want customers who use us one time, we want to establish lifelong relationships with customers that last generations. Contact us for more info!
Metalmen Sales Inc.
Long Island City, NY | 800-767-9494Metalmen 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.
AAA Metals Company Inc.
Hanson, MA | 800-531-9500Accommodating any size inquiry or destination. For all your stainless steel needs and more, our top priority is supplying quality material, competitive pricing and prompt delivery every time. Bars, plates, rings, discs, forgings, pipe, tubing, etc. from stock, in mill form or in precision cut pieces.
Industrial Alloys, Inc.
Indian Trial, NC | 800-772-6176Accommodating any size inquiry or destination. For all your stainless steel needs and more, our top priority is supplying quality material, competitive pricing and prompt delivery every time. Bars, plates, rings, discs, forgings, pipe, tubing, etc. from stock, in mill form or in precision cut pieces.
How Stainless Steel is Made
The first step in creating stainless steel is melting scrap metals and additives in an electric arc furnace (EAF). The EAF uses high-power electrodes to heat metals for hours, producing a flowing, molten mixture. The carbon makes the iron harder and stronger. However, too much carbon can lead to future issues, like carbide precipitating during welding. Before casting, it’s crucial to calibrate and reduce the carbon content of molten stainless steel to the appropriate level.
After the carbon reduction, the temperature and chemistry are balanced and homogenized to guarantee the steel's composition remains consistent throughout the batch. It also helps ensure the metal will satisfy certain grade specifications. Next, the foundry produces a simple shape to cool and work the molten steel. The finished product will determine the precise form and size.
Components of Stainless Steel Alloys
Chromium
Chromium-based stainless steel is significantly more resistant to corrosion, staining, and tarnishing.
Nickel
Nickel will improve an alloy’s ductility, weldability, and formability. Overall, nickel enhances the versatility of stainless steel.
Carbon
Stainless steel alloys with high carbon content are resilient and long-lasting. As a result, they’re commonly used for the food-grade stainless steel in cooking utensils.
Types of Stainless Steel Alloys
Ferritic Stainless Steel
Ferritic stainless steel is essentially nickel-free, with chromium making up 10.5% to 27% of it’s composition. A high chromium concentration makes the ferritic alloy corrosion and oxidation-resistant. However, because of it’s low mechanical qualities, it’s utilized as less stressed. Ferritic stainless steel is useful for high-temperature applications because of its excellent expansion coefficient and high-temperature resistance.
Martensitic Stainless Steel
Martensitic stainless steel has a chromium content between 11.5 and 18%, less than carbon, and occasionally some nickel. This alloy isn’t very ductile, but the high carbon content makes it strong, wear-resistant, and sturdy. Manufacturers use martensitic stainless steel alloys for applications requiring exceptional mechanical qualities.
Austenitic Stainless Steel
Austenitic stainless steel has over 18% chromium, 8% nickel, and minor quantities of molybdenum, titanium, nitrogen, and other elements. This alloy makes up almost 60% of all stainless steel manufacturing. Austenitic stainless steel has the best overall performance and greatest output compared to other alloys. Due to its excellent plasticity, toughness, and weldability, it’s often used for corrosion-resistant applications.
Duplex Stainless Steel
Duplex stainless steel contains roughly half Austenite and half Ferrite alloys. Typically, there’s over 30% of at least one component. To create duplex stainless steel, increase the Cr content of 18-8 austenite, or add ferrite components. Duplex stainless steels retain the Ni alloy, bidirectional austenite, and ferrite structures. This mixture overcomes the flaws of ferrite and austenite while retaining their perspective advantages. However, duplex stainless steels require a stringent procedure due to their poorer heat resistance and moderate temperature brittle zone.
Precipitation Stainless Steel
Precipitation stainless steel is created when stainless steel is combined with additional components through precipitation hardening. The mixture will determine the precise composition and characteristics of the precipitation alloy. Precipitation stainless steels are often ductile, strong, and corrosion-resistant.
To ensure long-lasting results and reduce expenses, it is crucial to understand which stainless steel grades are appropriate for different applications. There is often a stainless steel alloy to fit your needs, whether you’re seeking a robust alloy to withstand marine conditions or a beautiful alloy polished for utensil use.
