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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Alcoa announces price increase on small diameter drawn seamless tubing

May 24, 2004

Alcoa Engineered Aerospace Products has announced a price increase for soft and hard alloy small diameter (under 0.750-in OD) drawn tube in both round and other than round product forms. Base prices...

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ISG to acquire Georgetown Steel Co.

May 6, 2004

International Steel Group Inc. (ISG) has signed a definitive agreement to acquire the assets of the Georgetown Steel Co. facility in Georgetown, S.C., subject to customary closing adjustments and...

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Greer Steel announces key management appointments

May 4, 2004

Greer Steel, a cold-rolled strip steel producer, has appointed Todd Daenzer as vice president, quality and technology; Don Fleeher as vice president, purchasing; and Paul Eagle as vice president,...

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AISC appoints vice president of certification

May 4, 2004

The American Institute of Steel Construction (AISC) has named Roberta L. Marstellar, P.E., as vice president of certification. Previously she was director of the Steel Solutions Center, an AISC...

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Metallurgical aspects of tube production

May 4, 2004

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Small-diameter tubing plays a crucial role in many markets, including aerospace, nuclear, medical, and industrial. From coronary stents to hydraulic aircraft controls, each application has unique requirements. To meet the requirements of customers in these industries, well-designed processing steps and adequate control are critical.

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10 burning questions you asked about the steel price meltdown

May 4, 2004

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December came, and the Section 201 tariffs went out under the tide of global and World Trade Organization (WTO) pressure. Just when you thought it was safe to go back in the water, material price increases hit the metals industry like a tidal wave that made the tariff increases look like gently lapping wading waves. "The Perfect Storm," it's been called.

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Judge approves sale of Weirton Steel's assets to ISG

April 23, 2004

A federal bankruptcy court judge has approved Weirton Steel Corp.'s request to sell substantially all of its assets to Cleveland-based International Steel Group (ISG) Inc."Our employees, our other...

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Alloy Eng. Co. appoints sales engineer

April 8, 2004

The Alloy Eng. Co. has appointed Steve Hulvey to the position of sales engineer with account responsibility for Ohio, Michigan, western West Virginia, and the Ohio River area of Kentucky.In this...

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ASKO names North American sales director

April 8, 2004

ASKO Inc., Homestead, Pa., has promoted Mark. G. Nicholas to the newly created post of director of sales, North America. In his new position, Nicholas oversees all products and services sales in the...

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Welding's effect on strengthening steel

December 11, 2003

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Welding can severely influence strengthened or hardened metals, depending on the hardening technique used. Because of this, post-weld heat treatment is often very helpful in maintaining weld joint strength because it softens or tempers any martensite or bainite that formed in the HAZ.

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Making steels stronger

October 9, 2003

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When it comes to modifying a steel's strength and hardness, it's important to not confuse hardness with hardenability and remember that hardenability characteristics are important because they help identify how much a specific steel will harden during welding.

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Combating plate corrosion

October 9, 2003

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According to a recent study sponsored by the U.S. Federal Highway Administration (FHWA)1, with support from NACE International—The Corrosion Society, corrosion-related direct costs such as prevention methods and infrastructure repair and replacement make up 3.1 percent of the gross domestic...

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Carbon content, steel classifications, and alloy steels

August 28, 2003

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Steel classification is important in understanding what types are used in certain applications and which are used for others. For example, most commercial steels are classified into one of three groups: plain carbon, low-alloy, and high-alloy. Steel classification systems are set up and updated frequently for this type of information.

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Considering thermal processes for dissimilar metals

August 28, 2003

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Knowing how to weld dissimilar metals is becoming more and more important. One reason is that it's often impossible for one material to provide the optimum chemical, physical, and mechanical characteristics needed for an application. For this reason, as well as cost efficiency, technology specialists are experimenting with different joining processes to weld bimetal joints optimally.

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Phases, structures, and the influences of temperature

June 26, 2003

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When you heat or cool a piece of metal to a specific temperature, that metal goes through what's called a phase change, in which its crystal structure changes. Sometimes the change is obvious. For example, when a piece of metal melts, it goes through a phase change when the crystal structure breaks down and the metal goes from solid to liquid. When it solidifies it's also a phase change, as the structure re-forms from liquid to solid.

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