Archive for the ‘Alloy Steel’ Category
Saturday, January 12th, 2008
The American Iron and Steel Institute (AISI) defines carbon steel as follows:Steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, columbium [niobium], molybdenum, nickel, titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying ...
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Friday, December 28th, 2007
Alloy steels may be divided into four classes:
(1) Structural steels, which are subjected to stresses in machine parts.
(2) Tool and die steels.
(3) Magnetic alloys.
(4) Stainless and heat-resisting steels.
Structural steels
The structural steels can be grouped conveniently on the basis of tensile strength. However, the dividing lines between the classes are ill ...
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Friday, December 28th, 2007
During the last fifty years engineers have demanded steels with higher and higher tensile strength, together with adequate ductility. This has been particularly so where lightness is desirable, as in the automobile and aircraft industries. An increase in carbon content met this demand in a limited way, but even in ...
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Friday, August 24th, 2007
One of the things that the steel industry has done over the past several years is to aggressively position itself vis-a-vis competitive materials. Not only is this being done on a company-by-company basis, as new materials are developed, but also through coordinated efforts, specifically those of the Automotive Applications Committee ...
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Friday, August 24th, 2007
PITTSBURGH -- Universal Stainless & Alloy Products, which enjoyed record sales and earnings in 2001 in the face of an economic recession and steel industry Woes, has acquired certain assets of idled Empire Specialty Steel Inc. for $4 million from the New York Job Development Authority (JDA). Empire Specialty Steel, ...
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Friday, August 24th, 2007
PITTSBURGH -- Timken Co., Canton, Ohio, said Thursday it planned to hike prices for selected carbon and alloy steel bar products in sizes 6.25 inches and smaller by between $5 and $40 per ton, effective with new orders scheduled for shipment beginning May 1. The increases are in line with ...
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Friday, August 24th, 2007
PITTSBURGH -- Timken Latrobe Steel, Latrobe, Pa., has moved to increase base prices by 3 percent to 10 percent on all remelted aerospace alloy steel grades with all new orders effective immediately.
The company also posted base price increases on air-melt stainless alloys by 5 percent to 10 percent effective with ...
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Thursday, May 10th, 2007
Exxon Mobil Upstream Research, Nippon Steel Corp and Mitsui and Co have jointly developed a new steel which is 20-50% stronger than currently used pipeline steels. To this end, the three companies have signed a letter of intent to commercialise the alloy.
As part of the commercialisation agreement, it is possible ...
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Thursday, May 10th, 2007
Researches on processing β-Si3N4 ceramics and their thermal conductivity are reviewed. Empirical thermal conductivities of β-Si3N4 ceramics have been reported to be in the range of 10 to 162 Wm-1K-1 at room temperature, and are greatly affected by processing parameters such as purity of raw powders, type and amount of ...
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Thursday, May 10th, 2007
What won't work: crossing your fingers, thinking happy thoughts, or wishing really, really hard.
These techniques might be appropriate for a low-stakes bingo game, but they won’t help when there’s a real problem with your product. Ignoring the root cause of a failure can have large and broad reaching repercussions. Even ...
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