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<P style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: 宋体; MARGIN: 5px 0px ><SPAN style= FONT-SIZE: 18px; FONT-FAMILY: 'sans serif', tahoma, verdana, helvetica; COLOR: rgb(229,51,51); LINE-HEIGHT: 27px >8710防腐螺旋钢管质保厂家，5037标准螺旋钢管厂家8710防腐螺旋钢管质保厂家，5037标准螺旋钢管厂家Q235大口径5037标准螺旋钢管价格，5037标准螺旋钢管厂家大口径螺旋钢管用途及价格，江苏5037标准打桩用螺旋钢管厂家广告牌立柱用螺旋钢管价格，厂家生产价格**。<IMG style= BORDER-TOP: 0px; BORDER-RIGHT: 0px; BORDER-BOTTOM: 0px; BORDER-LEFT: 0px alt= src= http://img05.jdzj.com/oledit/UploadFile/news2015a/image/20160326/20160326092279757975814573.jpg data-ke-src= http://img05.jdzj.com/oledit/UploadFile/news2015a/image/20160326/20160326092279757975814573.jpg ></SPAN><SPAN style= FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); LINE-HEIGHT: 24px; BACKGROUND-COLOR: rgb(255,255,255) >螺旋钢管是以</SPAN>带钢<SPAN style= FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); LINE-HEIGHT: 24px; BACKGROUND-COLOR: rgb(255,255,255) >卷板为原材料，经常温挤压成型，以自动双丝双面埋弧焊工艺焊接而成的螺旋缝钢管。</SPAN><SPAN style= FONT-SIZE: 18px; FONT-FAMILY: 'sans serif', tahoma, verdana, helvetica; COLOR: rgb(229,51,51); LINE-HEIGHT: 27px ></SPAN><SPAN style= FONT-SIZE: 12px; FONT-FAMILY: 'sans serif', tahoma, verdana, helvetica; LINE-HEIGHT: 18px ></SPAN></P>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >承压流体输送，用螺旋缝埋弧焊钢管SY5036-2000，主要用于输送石油、天然气的管线；</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >承压流体输送用螺旋缝高频焊钢管SY5038-2000，用高频搭接焊法焊接的，用于承压流体输送的螺旋缝高频焊钢管。钢管承压能力强，塑性好，便于焊接和加工成型；</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >一般低压流体输送，用螺旋缝埋弧焊钢管SY5037-2000，采用双面自动埋弧焊或单面焊法制成的用于水、煤气、空气和蒸汽等一般低压流体输送用埋弧焊钢管。</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >螺旋钢管的常用标准一般分为:SY/T5037-2008（部标、也叫 普通流体输送管道用螺旋缝埋弧焊钢管）、GB/T9711.1-2008（国标、也叫石油天然气工业输送钢管交货技术条件**部分：A级钢管(要求严格的有GB/T9711.2 B级钢管)）、API-5L（美国石油协会、也叫管线钢管；其中分为PSL1和PSL2两个级别）、SY/T5040-2008（桩用螺旋焊缝钢管）。</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >SY/T5037-2008是石油部设标准一般都称做部标</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >GB/T9711.1-2008国家螺旋管，石油天然气工业输送钢管，A级</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) >一般低压流体输送用螺旋缝高频焊钢管（SY5039-2000）是以热轧钢带卷作管坯，经常温螺旋成型，采用高频搭接焊法焊接用于一般低压流体输送用螺旋缝高频焊钢管。</DIV>
<DIV class=para style= WORD-WRAP: break-word; FONT-SIZE: 14px; FONT-FAMILY: arial, 宋体, sans-serif; COLOR: rgb(51,51,51); BACKGROUND-COLOR: rgb(255,255,255) ><SPAN style= WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FLOAT: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; DISPLAY: inline !important; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >桩用螺旋焊缝钢管（SY5040-2000）是以热轧钢带卷作管坯，经常温螺旋成型，采用双面埋弧焊接或高频焊接制成的，用于土木建筑结构、码头、桥梁等基础桩用钢管。</SPAN>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >5037标准螺旋钢管也叫部标螺旋钢管。该种标准的钢管出厂前要对管体进行水压试验，以防止管体在应用的过程中漏水。只要测试合格才可以出厂。主要应用于市政工程的供排水工程及建筑钢结构用管。</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >下面对5037螺旋钢管的屈服强度进行说明</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >屈服强度对某些屈服现象不明显的金属材料，测定屈服点比较困难，常把产生0.2%**变形的应力定为屈服点，称为屈服强度或条件屈服极限<SPAN class=Apple-converted-space> </SPAN><BR>P0.2<BR>σ0.2=——<SPAN class=Apple-converted-space> </SPAN><BR>Fo<BR>式中P0.2——试样产生**变形为0.2%时的载荷（N）<BR>Fo——试样原横截面积（mm2）</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >9711标准螺旋钢管也称之为国标螺旋钢管。经常使用的材质有q195L,q195硅，10%23，20%23，L245，Q345B(16Mn),Q345c,S290(X42),S360(X52),L290,L360,X60等。</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >持久强度</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >9711标准螺旋钢管持久强度主要是看在高温条件下，经过规定时间发生断裂时的应力称为持久强度。通常所指的持久强度，是在一定的温度条件下，试样经5到10小时后的裂纹程度。</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >存货情况</DIV>
<DIV class=para style= WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(51,51,51); FONT: 14px/21px arial, 宋体, sans-serif; LETTER-SPACING: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px >9711标准螺旋钢管一般需要进行定做加工，钢管厂不存现货，现货一般为5037标准的螺旋钢管。<SPAN style= LINE-HEIGHT: 24px >防腐</SPAN>钢管<SPAN style= LINE-HEIGHT: 24px >是指经过防腐工艺加工处理，可**防止或减缓在运输与使用过程中发生化学或电化学反应发生腐蚀现象的钢制管道。根据我国统计数据，每年国内的钢管腐蚀直接经济损失2800多亿，当前全球每年因钢管腐蚀损失高达5000亿美元。防腐钢管可**地防止或减缓腐蚀延长钢管的使用寿命，降低钢管运行成本。</SPAN></DIV><BR class=Apple-interchange-newline></DIV> |
