- boron steel
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Англо-русский словарь терминов металлургии и сварки. 2011.
boron steel
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boron steel — the addition of boron in the range 0.0005 0.005% to certain steels increases the hardenability. A range of boron steels is now listed in the current BS 970 and are widely used for the production of cold headed fastenings … Mechanics glossary
steel — generally defined as a metallic product whose principal element is iron and where the carbon content is not more than 2%. (The presence of large quantities of carbide forming elements may modify the upper limit of the carbon content.) acid steel… … Mechanics glossary
Boron nitride — IUPAC name Boron nitride Identifiers … Wikipedia
Boron trifluoride — Chembox new Name = Boron trifluoride ImageFileL1 = Boron trifluoride 2D.png ImageNameL1 = Boron trifluoride in 2D ImageFileR1 = Boron trifluoride 3D vdW.png ImageNameR1 = Boron trifluoride in 3D Section1 = Chembox Identifiers CASNo = 7637 07 2… … Wikipedia
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
boron — boronic /boh ron ik, baw , beuh /, adj. /bawr on, bohr /, n. Chem. a nonmetallic element occurring naturally only in combination, as in borax or boric acid, and obtained in either an amorphous or a crystalline form when reduced from its compounds … Universalium
boron — UK [ˈbɔːrɒn] / US [ˈbɔrɑn] noun [uncountable] chemistry a chemical element that combines with other elements. It is used in nuclear reactors, for making glass, and for making steel hard … English dictionary
boron — n. Chem. a non metallic yellow crystalline or brown amorphous element extracted from borax and boracic acid and mainly used for hardening steel. Usage: Symb.: B. Etymology: BORAX + on f. carbon (which it resembles in some respects) … Useful english dictionary
Alloy steel — is steel alloyed with other elements in amounts of between 1 and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. Low alloy steels are defined as having an… … Wikipedia
Microalloyed steel — is a type of alloy steel that contains small amounts of alloying elements (0.05 to 0.15%). Standard alloying elements include: niobium, vanadium, titanium, molybdenum, zirconium, boron, and rare earth metals. They are used to refine the grain… … Wikipedia
Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… … Wikipedia
