Metals/Materials

The metals/materials technology area has information on the most commonly used materials in metal fabrication ̶ carbon steels; stainless steels; high-strength, low-alloy steels (HSLAs); and the 6000 series aluminum ̶ and those that aren't as common, such as the red metals, refractory metals, titanium, and magnesium.

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Stainless Steel Workshop: Stainless steel production certification

March 23, 2015

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There continues to be confusion in the marketplace about the conformance standard fr the various classifications of stainless steel products. The American Welding Society establishes guidelines to which manufacturers must conform depending on the specification. However, within the specification,...

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Stainless Steel Workshop: Ferritic stainless steels

March 20, 2015

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Q: What are the advantages of ferritic stainless steels? A: When a fabrication requires corrosion resistance and high performance, your foremost concern is its affordability. One metal that can meet this demand is ferritic stainless steel. Grades include AISI type 409, 11CfCb, 430, 436, 439, and...

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U. S. Steel announces capital investment projects in Alabama

March 20, 2015

United States Steel Corp., based in Pittsburgh, has announced two capital investment projects valued at a total of $277.5 million. The first capital project is the construction of an electric arc furnace (EAF) steelmaking facility at its Fairfield Works in Birmingham, Ala. The company will...

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Stainless Steel Workshop: Controlling Corrosion

March 20, 2015

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Q: How do I control corrosion in stainless steel? A: Corrosion in stainless steel is one of the most troublesome technical concerns for fabricators. Whether localized or widespread, corrosion takes many forms, depending on the particular service environment. Some common types are general...

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Metallurgy Matters: From one extreme to the other

March 19, 2015

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In terms of temperatures, the heat-affected zone (HAZ) has it all—from near liquidus to near ambient and everything in between—a fact that makes the HAZ a tricky piece of real estate to understand the predict. Why? Remember, a number of metallurgical changes can take place in hot metal, and...

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Greer Steel Co. announces staff appointments

March 19, 2015

Dover, Ohio-based service center and cold-rolled strip steel manufacturer Greer Steel Co., a division of Greer Industries, has announced the appointment of Todd Daenzer to the new role of executive vice president and the addition of Pablo Acre to its sales team. Daenzer, who has 20 years of...

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Superalloy powders designed for additive manufacturing applications

March 18, 2015

Oerlikon Metco has expanded its materials portfolio with superalloy powders designed for applications in laser-based and electron-beam additive manufacturing processes. The superalloy materials offer strength and corrosion resistance at high temperatures. The company’s current powder...

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Metallurgy Matters: Unlike oil and water, gas and metal can really mix it up

March 17, 2015

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Gas-metal reactions take place every time you weld. They happen quickly, especially at temperatures above 3,000 degrees F, and can cause serious problems. Of course, not all gas-metal reactions are bad; some are designed in, while others simply take place with no ill effects. But some prove quite...

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Metallurgy Matters: Solidification—It’s more than meets the eye

March 16, 2015

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There’s a lot going on as your weld puddle solidifies. Grains are trying to grow in a variety of directions, and the entire process can get quite competitive, because some grains grow faster and block the growth of others. Which grains grow faster depends on their orientation at the point where...

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Braner/Loopco receives slitter order from Lane Steel

March 12, 2015

Braner/Loopco, Schiller Park, Ill., has received an order for a single-loop Turret Head™ slitting line to be installed at Lane Steel Co.’s McKees Rocks, Pa., flat-rolled steel distribution and processing center. The line will have the capacity to process 60,000-lb. by 72-in.-wide...

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Increasing use of recycled steel spurs growth in the global steel scrap market, says report

March 11, 2015

Global Industry Analysts Inc. (GIA), San Jose, Calif., has released “Steel Scrap: A Global Strategic Business Report.” The global market for steel scrap is projected to reach 793 million metric tons by 2020, driven by the growing demand for steel and increasing shift toward the use of electric...

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Schnitzer Steel Industries named as 2015 World's Most Ethical Company

March 10, 2015

Schnitzer Steel Industries Inc., a Portland, Ore.-based manufacturer and exporter of recycled ferrous metal products, has been recognized by the Ethisphere® Institute as a 2015 World’s Most Ethical Company®. The designation recognizes organizations that have had a material impact on the way...

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Metallurgy Matters: The tricky subject of weldability

March 9, 2015

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Welding metallurgy is a science, but it’s far from perfect. I mention this here because my January/February column elicited a number of critical, if not scathing, e-mails concerning everything from a typo in Figure 3 to my generalizing the precise and exacting science of metallurgy. The...

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Universal Steel upgrades stretcher to process 1-in.-thick material

March 9, 2015

Cleveland-based Universal Steel, a flat-rolled-steel service center with emphasis on hot-rolled, cold-rolled, and coated carbon steels, has announced that its stretcher-leveler has received a number of upgrades to allow the machine to stretch and cut steel up to 1 in. thick in widths up to 74 in....

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Alcoa to acquire RTI Intl. Metals

March 9, 2015

New York-based Alcoa has signed a definitive agreement to acquire RTI Intl. Metals Inc., Pittsburgh, a global supplier of titanium and specialty metal products and services for the commercial aerospace, defense, energy, and medical device markets. RTI’s titanium operations span midstream...

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