Super-Austenitic Stainless Steel Alloys: A Comparison

Super-Austenitic Stainless Steel Alloys: A Comparison

Oct 7, 2015

In the high-purity and sanitary industries, products such as shampoos, conditioners, deodorants, sports drinks, ketchup, salsa, active pharmaceutical ingredients, etc. require extremely corrosion-resistant material to withstand the high concentration of chemicals (chlorides), high temperatures, and low pH. When faced with similar corrosion-resistant alloys, your purchasing decision should be influenced by which material is readily available.

What’s the Difference? AL-6XN™ vs C-22

What’s the Difference? AL-6XN™ vs C-22

Nov 30, 2011

High temperatures, low pH, and aggressive chemicals call for a material that exhibits the high corrosion resistance that traditional stainless steel alloys fail to attain. There are many alloys available to address the corrosion issues; but what makes super-austenitic stainless steel alloy AL-6XN® and nickel alloy C-22 the favorite materials for highly corrosive environments? Are the properties more attractive, or is the availability of the material in the required forms more desirable? Is one better than the other? Both AL-6XN and C-22 have a face-centered cubic lattice structure and contain...

How to Weld AL-6XN™

How to Weld AL-6XN™

Nov 1, 2011

Welding AL-6XN is a very similar process to welding other stainless steels, but there is one very important exception. This alloy requires an additional alloy to be consumed in the weld. The following video outlines these and other instructions for welding AL-6XN successfully.

Purging AL-6XN™ Tack Welds

Purging AL-6XN™ Tack Welds

Oct 18, 2011

“Purging” is the process of removing air that contains oxygen. Welding is a high-temperature process, so it is very important to keep oxygen and any other gases away from hot metal. We do this to avoid any kind of...

Skin Deep: The Basics of Surface Finish

Skin Deep: The Basics of Surface Finish

Oct 11, 2011

This brief article will deal with a small part of a much bigger topic: surface finish. We will be looking at commercially available finish options and how they are measured. The surface finish of process systems components plays a very integral role in the cleanability and sterility of the system. The most commonly used unit for surface finish is...

The Right Hands for the Job: Alloys

The Right Hands for the Job: Alloys

Mar 23, 2011

For any project requiring alloy equipment, the best thing to do is look at the experience and expertise with the alloy. The first requirement for a fabricator should at a minimum be ASME Section VIII Div 1 certified for the manufacture of pressure vessels, even for equipment not requiring pressure service.