冷拔圆钢方钢六角钢尺寸外形重量及允许偏差.pdf

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1、中华人民共和国冷拔圆钢、方钢、六角钢GB/T905-94尺寸、外形、重量及允许偏差Dimension,shape,weightanatolerance代替GB905-82GB906-82forcold-drawnround,aquareandhexagonalsteelsGB907-82本标准中的尺寸允许偏差采用国际标准ISO286.1-1988《ISO极限与配合---第一部分：总论，公差、偏差与配合》中的数值，1主题内容及适用范围本标准规定了冷拔圆钢、方钢、六角钢的尺寸、外形、重量及允许偏差。本标准适用于尺寸为3～80mm的圆钢

2、、方钢、六角钢2钢材的截面图示及标注符号2.1圆钢的截面图示及标注符号如图12.2方钢的截面图示及标注符号如图2国家技术监督局1994-12-221995-10-01实施GB/T905-942.3六角钢截面图及标注符号图2。3尺寸、重量及允许偏差3.1钢材的尺寸、截面面积及理论重量列于表13.2经供需双方协议，可以供应中间尺寸的钢材表1圆钢方钢六角钢尺寸截面面积理论重量截面面积理论重量截面面积理论重量2kg/mmm2kg/mmm2kg/mmmmm3.07.0690.05559.0000.07067.7940.06123.28.04

3、20.063110.240.08048.8680.06963.59.6210.075512.250.096210.610.08334.012.570.098616.000.12613.860.1094.515.900.12520.250.15917.540.1385.019.630.15425.000.19621.650.1705.523.760.18730.250.23726.20.2066.028.270.22236.000.28331.180.2456.331.170.24539.690.31234.370.2707.038

4、.480.30249.000.38542.440.3337.544.180.34756.250.442--8.050.270.39564.000.50255.430.4358.556.750.44572.250.567--9.063.620.49981.000.63670.150.5519.570.880.55690.250.708--10.078.540.617100.000.78586.600.68010.586.590.680110.200.865--GB/T905-94续表1圆钢方钢六角钢尺寸截面面积理论重量截面面积理论重

5、量截面面积理论重量2kg/mmm2kg/mmm2kg/mmmmm11.095.030.746121.00.950104.80.82311.5103.90.815132.21.04--12.0113.10.888114.01.13124.70.97913.0132.71.04169.01.33146.41.1514.0153.91.21196.01.54169.71.3315.0176.71.39225.01.77194.91.5316.0201.11.58256.02.01221.71.7417.0227.01.78289.02.

6、27250.31.9618.0254.52.00324.02.54280.62.2019.0283.52.23361.02.83312.62.5420.0314.22.47400.03.14346.42.7221.0346.42.72441.03.46381.93.0022.0380.12.98484.03.80419.23.2924.0452.43.55576.04.52498.83.9225.0490.93.85625.04.91541.34.2526.0530.94.17676.05.31585.44.6028.0615.8

7、4.83784.06.15679.05.3330.0706.95.55900.07.06779.46.1232.0804.26.3110248.04886.86.9634.0907.97.1311569.0710017.8635.0962.17.5512259.62--36.0----11228.8138.011348.90144411.312519.8240.012579.86160012.6138610.942.0138510.9176413.8152812.045.0159012.5202515.9175413.848.01

8、81014.2230418.1199515.750.0196815.4250019.6216517.052.0220617.3280922.0243319.155.0----262020.556.0246319.3313624.6--60.0282