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As much as we've all heard about carbon footprints, few of us know about water footprints. In addition to the regular water we associate with food and beverages, there is something called "virtual water." That's the water it actually takes to manufacture or grow something to the point where we use it, eat it, wear it or do something else with it. Check out the blog to read more.

I’m sure most have heard someone say, “Oh, that’s just a bad material.” I would suggest that, “There are no bad materials, only bad material selections.” There is no silver bullet in materials, i.e. one material that is good for every application, and cheap too. Most materials are judged on a number of characteristics based on physical properties, corrosion resistance, cost, availability, ease of fabrication, weldability and available certified labor.

I am of the opinion that each material has its place, that service environment that meets all of the plant’s priorities. I would define a successful application of a material as one that provides safety and reliability for a desired service life. Of course, there must always be an understanding of the budget constraints.

Carbon steel is one of the most commonly used materials of construction, with countless successful applications, but if put in a corrosive environment it may fall short on expectations. 316 Stainless Steel is a common alloy material frequently used, but put it into a weak sulfuric acid service and it may only last a matter of days. Yet in a higher concentration and temperature sulfuric acid application, 316SS is well proven. Like most things, it is all about the details.

When materials do fall short, it can be due to insufficient information. There are times when the principal chemical constituents are defined, but maybe there are some secondary or trace chemical elements in the flow stream that may be overlooked. Operating conditions may be defined, although significant thermal or pressure excursions may not be evaluated or understood. Communication and thorough investigation are important components of the material selection process as well.

Non-metallic materials are less understood and have their challenges at times. There have definitely been some cases of misapplication or poor execution of nonmetallic materials in the past. Today, knowledge and resources for non-metallics are more reliable and available. This progress has led to more consistent success in corrosive or hazardous applications, where only high-end alloys may have been considered in the past.

In today’s competitive environment, project and process engineers are challenged with budgetary pressures as well as expectations of higher performance. To best meet these demands, engineers must conduct a comprehensive investigation of all materials to select the optimal material for the priorities.

For corrosive applications within defined temperature ranges and other conditions, non-metallic materials of construction, such as FRP, dual laminate and thermoplastics can be cost effective and reliable material choices. Selecting and specifying the best materials is just the first of many steps of project execution, but a very important step. One of many choices to be made for a successful project.

What are your priorities for selecting materials???

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From the Maverick Blog

  • Blog Article – Pipe Stress Analysis of Nonmetallic Piping Systems

    Plant Owners and Engineers are becoming much more knowledgeable regarding design concerns and expectations for nonmetallic piping systems....

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Hazardous Chemical Byproducts and FRP: What You Should Know

Waste incineration facilities dispose of some of the most hazardous and corrosive by-products in the chemical process industry. Find out why FRP...

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Maverick Webcast

Expansion Joints for FRP Connections

Presented by Rob Coffee at the 2nd Annual Plant Engineer’s FRP Forum. Rob is the VP of Sales and Marketing at Proco Products, Inc., and he discusses Expansion Joints for FRP Connections.

View The Webcast Here...