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Excessive toughness of steel strand1/2/2020 We're a leading provider and distributor of the highest quality carbon steel wire available on the market. At a holding temperature exceeding 500° C., pearlite texture forming on the middle portion of the wire rod or wire will increase tensile power and degrades drawability.
At a holding temperature under 350° C., granulation of cementite within the bainite structure starts, growing tensile energy and degrading drawability. This excessive carbon steel wire rod has a ferrite crystal grain dimension of 20.0 μm or much less and a Cr focus in the carbides of 6.zero% by mass or more. Products embody bars, beams, billets, sheets, coils, plates, wire rods, slabs, tubing and pipes. Black iron wire is fabricated from carbon steel wire, used for weaving, baling normally. A preferable upper restrict of the content of Pb and Bi is zero.2%, a more preferable higher limit is zero.1%, and an additional preferable upper limit is 0.05%. Because of its excessive power and toughness, low relaxation, sturdy binding force with concrete, in the meantime, it's easy to be welded, upsetting and in addition it could save supplies (similar to φ11mm metal bar can exchange the recent rolled metal bar of φ20mm), etc. It is generally accepted that the standard of the final products largely depends upon the quality of wire rods and steel billets, including centerline segregation, cleanness, microstructure, and so on., as a result of heredity of these high quality defects. Fastener include carbon lower than 0.5%. Building industry wire rods are product of high carbon steels. All of our billet must go through the detecting and grinding process earlier than being rolled into the wire rods for assuring the floor quality. Independently, PTL 2 proposes a technique of enhancing drawability of a wire rod by specifying the world of intragranular transformed higher bainite present in a cross part of the wire rod and the growth measurement of such intragranular bainite. The high-carbon steel wire rod as defined in claim 1, wherein the pearlite has a mean lamella area (S nm) no smaller than a hundred and fifty nm. Used to supply laborious-drawn wire (for pre-confused concrete), oil tempering wire, zinc-coated wire rope, steel wire rope and excessive-carbon metal wire rods.
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