Alloy steel alloy steel in addition to iron, carbon, but added other elements, called steel. Add the appropriate amount of ordinary carbon steel foundation of one or more alloying elements constitute the iron-carbon alloys. Depending on the added elements and take appropriate processing technology, a high strength, high toughness, wear resistance, corrosion resistance, low temperature, high temperature, the main alloying elements and other special properties of non-magnetic steel main alloying elements are silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, and rare earth. Wherein the vanadium, titanium, niobium, zirconium and other strong carbide forming elements in the steel, as long as there is enough carbon, under appropriate conditions, can form their own carbide, when the lack of carbon or at elevated temperatures, places atom state into solid solution; manganese, chromium, tungsten, molybdenum carbide forming elements, some of which atomic state into solid solution, the other part of the formation of substitutional alloy cementite; aluminum, copper, nickel, cobalt, silicon is not formed carbide elements, generally atomic state in the solid solution alloy steel means steel, in addition to silicon and manganese as an alloying element or deoxy elements, but also contain other alloying elements (such as chromium, nickel, molybdenum, vanadium, titanium, copper, tungsten, aluminum, cobalt, niobium, zirconium, and other elements, etc.), and some also contain certain non-metallic elements (such as boron, nitrogen, etc.) of the steel. Depending on how much content of alloying elements in steel, can be divided into low-alloy steel, alloy steel and high alloy steel. Mainly refers to the mechanical properties of the steel depending on the steel carbon content, and generally does not add a large amount of alloying elements of steel, sometimes referred to as carbon steel or carbon steel. Carbon steel, also known as carbon steel, WC carbon content of less than 2% of the iron-carbon alloys. Addition to carbon steel outer typically also contain small amounts of silicon, manganese, sulfur, phosphorus, carbon-use can be divided into carbon structural steel, carbon tool steels and free-cutting steel categories. Carbon steel is divided into two kinds of structural steel building structural steel and machine-building structures according to the carbon content of the steel can be divided into low-carbon steel (WC ≤ 0.25%), medium carbon steel (WC0.25% - 0.6%) and high-carbon steel (WC> 0.6%) by phosphorus, sulfur content can be divided into ordinary carbon steel, carbon steel (containing phosphorus, sulfur and higher), high-quality carbon steel (containing phosphorus, sulfur, low) and Senior high quality steel (containing phosphorus, sulfur lower) carbon in the carbon content is generally higher hardness, higher strength, but lower ductility. My main production and operation of precipitation hardening steel, duplex steel, heat-resistant steel, heat-resistant alloys, corrosion resistant alloys, austenitic steels, martensitic steel and other special steels. For petroleum, chemical, shipbuilding, nuclear engineering, aerospace, and mining, textile, construction machinery and other industries! In the company of seeking truth from facts, faith-based principles, to get a higher rating in the circle and customers. Stainless steel pipe, bar, profiles, etc. are well-known manufacturers in the establishment of the agent or agency companies, manufacturers or classification societies have passed ISO9000 certification, the company for the products are quality assurance. The main products are: F11, F22, F5, F9, F91, F51 (2205), F53 (2507), 304,304L, 304H, 321,316,316L, 316H, 317,317L, 347,347H, 904L, 1Cr13, 2Cr13,1.4401,1.4404, 1.4462,1.4571, 1.4539 and other kinds of stainless steel round bar, square steel, steel pipes, steel ingots, flat ingots. GB, ANSI, DIN and other products are sold.