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As your Metals Partner, it is our goal to educate you on various casting processes. Feel free to browse around to learn more but if you have questions or need to submit an RFQ, please contact us. MetalTek International. Because You Demand More Than Metal.

What Is Austenitic Stainless Steel?

Posted by Dave Olsen on 12/30/19 8:23 AM

Austenitic stainless steels are a form of stainless steel that contain significant amounts of chromium and nickel, often manganese, molybdenum, and nitrogen as a supplement to the iron base. The addition of nickel to otherwise ferritic chrome-iron alloys yields predominately austenitic alloys. The microstructure change brings a marked increase in ductility and toughness.

The family of austenitic stainless steels is, by far, the most widely used of the stainless alloys in industrial markets. That is because corrosion resistance provided by austenitics is generally the best of all standard stainless types. Materials are non-hardenable (hardness ranges 130 to 200 BHN), non-magnetic to slightly magnetic, and are readily weldable and machinable.

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Topics: Stainless Steel, Austenitic

What Makes It Stainless?

Posted by Dave Olsen on 10/10/18 4:17 PM

It’s everywhere. Probably more than you notice. It’s a key material in food preparation and food processing equipment. When you are eating, that fork in your hand is probably made of it. It is likely to be the material your sink is made of. And if you watch HGTV you know that no kitchen is complete unless it has appliances made of it. It’s a key component in many industrial applications. We are talking about stainless steel, but it’s probably so familiar that you just refer to it as your old friend, “Stainless”.

But just what makes this popular material “Stainless” and what does that mean?

Stainless steel is a ferrous (iron-based) alloy family that has a minimum of 10.5% chromium.  It has been known for a couple of centuries that adding chromium to a ferrous alloy really improves the material’s resistance to corrosion.  But it has only been in the last century or so that a better understanding of the metallurgy of that combination – more specifically the controlled inclusion of very small amounts of carbon – has allowed stainless steel to become the workhorse family of metals that it is.

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Topics: Ferrous Alloys, Stainless Steel

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