首页> 外国专利> Heat formable untempered steel having good mechanical properties - useful for making machine parts, comprises carbon, silicon, manganese, chromium, molybdenum, aluminium, vanadium, niobium and iron

Heat formable untempered steel having good mechanical properties - useful for making machine parts, comprises carbon, silicon, manganese, chromium, molybdenum, aluminium, vanadium, niobium and iron

机译:具有良好机械性能的可热成型未回火钢-用于制造机械零件,包括碳,硅,锰,铬,钼,铝,钒,铌和铁

摘要

Untempered, heat formable steel is claimed. It needs no heat treatment, merely air cooling, and its deformation properties are independent of the size of the article. The compsn. of this steel is as follows: (wt.%) C 0.1-0.3; Si 0.05-0.5; Mn 0.8-2.0; Cr 0.3-1.5; Mo 0.05-0.5; Al 0.002-0.06; V 0.05-0.5; N 0.008-0.2, and the rest Fe with unavoidable impurities. Furthermore, the proportions of the individual elements must fulfil the following conditions: (a) %Mo + %V is at least .20%; (b) 1.8x%Mn + %Cr + 1/2%Mo is at least 20 x %C; (c) Bs is at least 550 deg. C (Bs is the Bainite transition temp.) and (d) Bs = 830-270x%C-90x%Mn-70x%Cr-83x%Mo. USE/ADVANTAGE - Useful for making parts for driving frames, power driven vehicles, and hydraulic parts in machine building. Economic on heat requirements, excellent properties.
机译:要求使用未回火的可热成型钢。它不需要热处理,只需空气冷却,其变形特性与制品的尺寸无关。该compsn。该钢的含量如下:(wt。%)C 0.1-0.3;硅0.05-0.5;锰0.8-2.0;铬0.3-1.5; Mo 0.05-0.5; Al 0.002-0.06; V 0.05-0.5; N 0.008-0.2,其余Fe不可避免地含有杂质。此外,各个元素的比例必须满足以下条件:(a)%Mo +%V至少为.20%; (b)1.8x%Mn +%Cr + 1/2%Mo至少为20 x%C; (c)Bs至少为550度。 C(Bs是贝氏体转变温度),(d)Bs = 830-270x%C-90x%Mn-70x%Cr-83x%Mo。用途/优点-用于制造机械制造中的驱动框架,动力驱动车辆和液压零件。经济的热需求,优良的性能。

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