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最近,我们统计了从1972年以来所生产的普通碳素铡(A_3、A_3F)及低合金钢(16Mn)关于碳、硫、砱含量的分布频率、强度分布频率和含碳量与σ_b平均值的关系,并描绘了曲线。对制订一米七产品标准(特别是对深冲板、镀锌板、镀钖板)和适应电子计祘机的控制提供了一定的参考数据。现将统计结果简要说明如下: 一、σ_b的分布频率根据GB700—65和YB13—69规定,A3、A3F的抗拉强度σ_b为38～47公斤/毫米~2,16Mn的σ_b为≥52公斤/毫米~2。从表图1、4、7数据来看,武钢生产
Recently, we have calculated the distribution frequency, intensity distribution frequency, carbon content and σ_b average value of carbon, sulfur and phosphors content of common carbon 铡 (A_3, A_3F) and low-alloy steel (16Mn) produced since 1972 The relationship, and depicts the curve. It provides some reference data for formulating the product standard of one meter and seven (especially for deep drawing board, galvanized board, plating board) and the control of electronic calculator. Now the statistical results are briefly described as follows: First, σ_b distribution frequency According to GB700-65 and YB13-69 provides A3, A3F tensile strength σ_b is 38 ~ 47 kg / mm ~ 2,16Mn σ_b ≥ 52 kg / Mm ~ 2. From the charts 1,4,7 data, Wuhan Iron and Steel production