SCH40表示壁厚多少毫米

SCH40、SCH80等对应表示的壁厚为多少毫米阿？谢谢

查ASME B36.10M/36.19M

[此贴子已经被IMWORKMAN于2007-3-2 17:12:38编辑过]

对不起,上个贴子打错了多打了一个1应该是ASME B36.10M/ASME36.19M

<br/>给你上传一个选用表

<p>真好</p>

<div class="msgheader">QUOTE:</div><div class="msgborder"><b>以下是引用<i>zengjiangt</i>在2007-3-2 8:47:34的发言：</b><br/><br/>给你上传一个选用表</div><p>谢谢啊，很有用，这样就很好查了</p>

谢谢3楼的

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">为了使选材合理，减少管壁厚度的分级数量，便于管理和施工，管壁厚度可采用管表号（</span><span lang="EN-US"><font face="Times New Roman">schedule number</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">简称</span><span lang="EN-US"><font face="Times New Roman">sch</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">。）分级。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">管表号仅起到管壁厚度分级排列的作用，没有其他含义。确定管表号的计算公式：</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman">&nbsp; </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">管表号＝</span><span lang="EN-US"><font face="Times New Roman">1000P/[</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">σ</span><span lang="EN-US"><font face="Times New Roman">]</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;">&nbsp; </span></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝管内介质压力（</span><span lang="EN-US"><font face="Times New Roman">kg/cm2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">）</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;">&nbsp; </span>[</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">σ</span><span lang="EN-US"><font face="Times New Roman">]</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝管材再操作温度下的许用应力（</span><span lang="EN-US"><font face="Times New Roman">kg/cm2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">）</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">由于壁厚正比与</span><span lang="EN-US"><font face="Times New Roman">P/[</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">σ</span><span lang="EN-US"><font face="Times New Roman">]</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">，因此，管表号是以</span><span lang="EN-US"><font face="Times New Roman">P/[</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">σ</span><span lang="EN-US"><font face="Times New Roman">]</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">的比值来规定壁厚系列，可以不受材质、操作条件（如温度、压力）、安装方式、流体特性等因素的影响。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman">&nbsp;&nbsp; </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">管表号在规定的工况中大致反映其承载能力，例如：</span><span lang="EN-US"><font face="Times New Roman">sch80</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">的管道，许用应力</span><span lang="EN-US"><font face="Times New Roman">[</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">σ</span><span lang="EN-US"><font face="Times New Roman">]</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">为</span><font face="Times New Roman"><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="True" sourcevalue="1280" unitname="kg"><span lang="EN-US">1280 kg</span></chmetcnv><span lang="EN-US">/cm2</span></font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">，则可计算出承载能力</span><span lang="EN-US"><font face="Times New Roman">P</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝管表号×</span><span lang="EN-US"><font face="Times New Roman">S/1000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝</span><span lang="EN-US"><font face="Times New Roman">80</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">×</span><span lang="EN-US"><font face="Times New Roman">1280/1000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝</span><font face="Times New Roman"><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="True" sourcevalue="102.4" unitname="kg"><span lang="EN-US">102.4 kg</span></chmetcnv><span lang="EN-US">/cm2</span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman">&nbsp;&nbsp; </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">管表号来计算壁厚只是一个理论公式，不能直接用于设计计算，仅仅用来确立合理的壁厚系列</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman">&nbsp;&nbsp; </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">公式如下：</span><span lang="EN-US"><font face="Times New Roman">t</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝管表号×</span><span lang="EN-US"><font face="Times New Roman">D/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">（</span><span lang="EN-US"><font face="Times New Roman">1.75</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">×</span><span lang="EN-US"><font face="Times New Roman">1000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">）＋</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="True" sourcevalue="2.5" unitname="mm"><span lang="EN-US"><font face="Times New Roman">2.5 mm</font></span></chmetcnv></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">如：公称直径</span><span lang="EN-US"><font face="Times New Roman">200</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，</span><font face="Times New Roman">
                </font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">管表号</span><span lang="EN-US"><font face="Times New Roman">40</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，外径</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="219" unitname="mm"><span lang="EN-US"><font face="Times New Roman">219mm</font></span></chmetcnv></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">则</span><span lang="EN-US"><font face="Times New Roman">t</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝</span><span lang="EN-US"><font face="Times New Roman">40</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">×</span><span lang="EN-US"><font face="Times New Roman">219/</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">（</span><span lang="EN-US"><font face="Times New Roman">1000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">×</span><span lang="EN-US"><font face="Times New Roman">1.75</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">）＋</span><span lang="EN-US"><font face="Times New Roman">2.5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">＝</span><span lang="EN-US"><font face="Times New Roman">7.5mm</font></span></p>

SCH5S 10S 40S 是不是针对不锈钢而言,而其他不带S 的是针对碳钢的?这个规范我没有,但这个表见过,没有深研究,没有细想

sch40是壁厚系列符号，不是具体的壁厚，需查表知道具体值

<p>是中石化的管道壁厚标准，有相应的表格可以查询</p><p></p>

楼上正确！带S 的是针对不锈钢钢的！

那只是一个代号，要查标准才能知道

楼主，你问这问题一点也不认真负责，简直是问到大家，你好好查看书，这sh**是怎么个表示意思？
你得把管径也给出来才能给你对应的壁厚。或者你查SH3405-96，里面很清楚！

谢谢4楼分享的“压力管道选用表”。