矿用U型钢参数手册

1、矿用 U 型钢选型手册说明矿用U 型钢主要用于煤矿矿井的支撑及金属结构支架使用，也用于隧道内部支撑。此数如下：型 号18V25V29V36V截面面积(cm2)24.1531.543745.7b kg/m18.9624.762936ix(cm4)288.8455.1612.1955.5jx(cm4)284.2451.7616972wx(cms)57.4081.6891137断面主要参数iy(cm4)333.2506.0770.71237jy(cm4)331.1508.77751264wy(cms)54.3675.92103148wx/G3.03.33.23.8主要对比参数wy/G2.93.13.

2、64.1wz/wy1.061.080.9109.3材质16Mn20Mnk20MnVkC0.160.200.210.260.170.24S10.400.600.400.600.170.37Mn1.301.601.301.601.201.60:%V0.070.20P0.0450.0600.040S不大于0.0500.0500.040N0.0080.0080.008屈服点N/mm2(kgf/mm2)345(35)355(36)390(40)力学性质抗拉强度N/mm2(kgf/mm2不小于510(52)510(52)640(65)伸长率%212018(1)4-664-68 4-144 4_146。表4

3、-144 型钢的截面尺寸(mm)型号H1H2H3B1B2B3B4B5B6B7M618U991810122845746.27.525U11O26171349250.84594.16.629U12428.516150.511644534230116.67.23型号dR1R2R3Rdr1r2r3J918U229984225U02.540040012lO7229U450185151674403截。面参数X-X截。面参数X-X56.2957.4381.6882.58106.0092.00ixcmSxcmIycm4y_yWy/cm3iycm截面理论型号面积cm2质量(kgm)Ixcm418U24.1518

4、U24.1518.96284.2625U31.5424.76451.7029U37.0029.00612.003.4375.40331.3554.323.703.78110.90508.7075.924.024.07212.91771.00102.004.57型 号H118U+1.099-1.5型 号H118U+1.099-1.5+0.510B1+1.0122+0.87.5-0.1-2.0+0.5+1.0+0.5+1.0+0.8CSiMnV16MnKO120.200.200.551.201.600.0450.04520MnKO150.260.200.601.201.600.0500.05025MnK0.210.310.200.601.201.600.0500.05020MnVK O170.240.170.371.201.600.070.200.0450.04525MnVK 0.220.300.500.901.301.600.060.130.0500.050化学成分(质量分数)(%)牌 号PS (质量分数)0化学成分(质量分数)(%)牌 号PS屈服点sMPa屈服点sMPah伸长率()牌 号MPaa=试样厚度16MnK3254902120MnK335490