Austenitic stainless steel wire rod for welding
A technology of austenitic stainless steel and stainless steel, applied in the field of steel wire, can solve the problems of poor cold workability, high production cost of alloy materials, high ferrite, etc., and achieve good wear resistance, excellent corrosion resistance and low cost Effect
Active Publication Date: 2013-03-06
YONGXING SPECIAL STAINLESS STEEL
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Problems solved by technology
[0004] The Mn content of the existing 304L stainless steel wire rods is low, resulting in a high ferrite phase of the wire rods, which seriously affects the thermal processing properties of the material
Chinese patent CN101942617A provides a corrosion-resistant, wear-resistant and high-temperature-resistant alloy material, whose chemical composition is shown in Comparative Example 1 of Table 1 in the specific examples. This material contains a relatively high (8~11.0%) Mn element, but its precious metal Ni, Cr, Mo content are all higher, so the alloy material production cost that this invention provides is higher
The above patents have their own advantages, but they contain higher Mn7~10%, which will seriously corrode the furnace wall during the refining process, and because Ni can significantly improve the plasticity and toughness of stainless steel, reduce its brittleness, transform stability, and have anti-corrosion properties. Low temperature and diamagnetism are also beneficial to cold formability and weldability, so the Ni content of stainless steel wire rods for welding should not be too low, otherwise it will have a great impact on the stability of austenitic stainless steel wire rods for welding, which may lead to poor cold workability. Waiting for the disadvantages
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[0024] The present invention is described in further detail below in conjunction with embodiment.
[0025] The present invention provides a kind of austenitic stainless steel wire rod for welding, exemplifies 6 groups of examples, and its chemical composition is shown in Table 1. Embodiments 1 to 6 in Table 1 are prepared by the following methods: purchasing required steel scrap, high-carbon ferrochromium, electrolytic manganese, ferrosilicon, a small amount of ferronickel or nickel plate, pure titanium or scrap metal titanium and / or pure niobium After reasonable batching and furnace loading, the raw materials are initially melted into mother liquor by using the heat generated by the electric arc furnace, and then refined in an argon-oxygen furnace. Cast stainless steel ingots, use grinding wheels and other tools to grind the steel ingots, put the steel ingots into the heating furnace, open the blooming mill into billets, grind the square billets, and then put them into the he...
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The invention discloses an austenitic stainless steel wire rod for welding. According to the present invention, high-content Mn is adopted to replace partial Ni; C content, N content and Cu content are controlled; Cr content and Si content are reasonably adjusted; a certain amount of Mo and Ti or Nb are added, such that the austenitic stainless steel wire rod for welding is obtained, wherein the austenitic stainless steel wire rod has advantages of relatively low cost, good wear resistance, excellent corrosion resistance, easy processing, and the like.
Description
technical field [0001] The invention relates to the field of steel wire rods, in particular to an austenitic stainless steel wire rod for welding. Background technique [0002] With the development of the economy, there are more and more special materials required by various industries. These special materials have the characteristics of multi-variety, small batch, high performance and individuality. Welding materials are one of the special materials. There is a roughly corresponding relationship between the production and consumption of welding materials (including welding rods, welding wires, fluxes, etc.) and steel consumption. The amount of wire used for welding materials is growing in tandem with the production of welding materials. In recent years, the production and sales volume of stainless steel in my country has become the largest country in the world, and the market demand for stainless steel wire rods for welding used as supporting materials has grown rapidly. S...
Claims
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IPC IPC(8): C22C38/58
Inventor 王建勇吴明华邹伟民孙健金卫强刘圆圆
Owner YONGXING SPECIAL STAINLESS STEEL