Archive for the ‘Steel specifications and applications’ Category
Tuesday, December 11th, 2007
Most people, when asked, will say that steel is one of the strongest materials that are available for construction. However, what they don't realize is just how strong is really is and how that strength can be used in building. Many of us have been brought up to think that ...
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Tuesday, December 11th, 2007
A number of consumers have questions about what is (and what is not) included in the purchase of a steel building. The purchasing of a steel building involves a number of factors that any prudent shopper should be aware of along with what to expect from the steel building company ...
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Monday, March 20th, 2006
Several types of hot-rolled dual-phase sheet steels prepared by simple temperature control in hot strip mill or by heat treatment on a continuous annealing line have been compared in this article with conventional micro alloyed steels through various forming tests.
Thickness of these steels ranges from 1.8 to 2.5 mm and ...
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Monday, March 20th, 2006
Forging was the first of the indirect compression-type process and it is probably the oldest method of metal forming. It involves the application of a compressive stress, which exceeds the flow stress of the metal. The stress can either be applied quickly or slowly. The process can be carried out ...
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Monday, March 20th, 2006
Wear costs money, sometimes lots of money. Numerous structures, such as dump bodies, materials handling equipment and crushing machines, for instance, are exposed to continuous, abrasive and impact wear, which is costly. As a solution, has developed special structural steels that are highly resistant to wear and abrasion.
Wear-resistant special structural ...
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Monday, March 20th, 2006
The ferritic stainless steels are somewhat stronger than austenitic stainless steels, the yield stresses being in the range 300-400 MPa, but they work harden less so the tensile strengths are similar, being between 500 and 600 MPa. However, ferritic stainless steels, in general, are not as readily deep drawn as ...
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Monday, March 20th, 2006
The commonest austenitic steel is so-called 18/8 containing around 18% Cr and 8% Ni. It has the lowest nickel content concomitant with a fully austenitic structure. However in some circumstances, e.g. after deformation, or if the carbon content is very low, it may partially transform to martensite at room temperature. ...
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Monday, March 20th, 2006
Fracture at Elevated Temperatures
The constant load creep rupture test is the basis for design data for both creep strength (minimum creep rate or time to a specific creep strain) and failure (time to rupture). The various ways in which such data are presented, correlated, and extrapolated are ...
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Monday, March 20th, 2006
Shapes and bars are normally available as Grades A, AH32, or AH36. Other grades may be furnished by agreement between the purchaser and the manufacturer.
When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use ...
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Monday, March 20th, 2006
This group of ASTM standard specifications covers a common requirements that, unless otherwise specified in the material specification, apply to rolled steel plates, shapes, sheet piling, and bars under each of the following specifications issued by ASTM.
ASTM Designation
Title of Specification
A 36/A 36M
Structural Steel
A 131/A 131 M
Structural Steel for Ships
A 242/A ...
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