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H-beam is a new type of steel for economic construction. H-beam has economical and reasonable cross-sectional shape, good mechanical properties, uniform extension of each point on the cross-section and small internal stress during rolling. Compared with ordinary I-beam, H-beam has the advantages of large cross-sectional modulus, light weight and metal saving, which can reduce the building structure by 30-40%. In addition, because its legs are parallel to the inner and outer sides and the leg ends are right angles, the welding and riveting work can be saved by 25%. It is often used in large buildings (such as factories, high-rise buildings, etc.) with large bearing capacity and good cross-sectional stability, as well as bridges, ships, lifting and transportation machinery, equipment foundations, supports, foundation piles, etc.
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AISI/SAE 1025 Carbon Steel Bar
1025 carbon steel is a steel that contains only carbon as its main alloying element. These steels also contain 0.4 percent silicon and 1.2 percent manganese. Small amounts of copper, nickel, molybdenum, aluminum and chromium can also be detected in carbon steel.
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AISI/SAE 1045 C45 Carbon Steel Bar
1045 is characterized by medium carbon, medium tensile strength steel, which has quite good strength, machinability and reasonable weldability under hot-rolled conditions. 1045 round steel can be provided with hot rolling, cold drawing, rough turning or turning and polishing. By cold-drawing the 1045 steel bar, the mechanical properties can be improved, the dimensional tolerance can be improved, and the surface quality can be improved.
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AISI/SAE 4130 Carbon Steel Bar
4130 cold-rolled round bars provide some recognized weldability without affecting the wear and impact resistance of the steel, carbon steel 4130 bars also have excellent machining properties and can be heat treated. At the same time, it has high tensile strength and high yield strength.
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AISI/SAE 4140 Carbon Steel Bar
4140 is a 1% chromium-molybdenum medium hardenability general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa (condition T). 4140 now have improved machinability, which greatly increases feed and/or speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding.
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