西安鐵素體不銹鋼的五大分類

摘要：<p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">西安</span></span><span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">鐵素體不銹鋼的五大</span></span><span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">分</span></span><span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">類</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">西安</span></span><span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">鐵素體不銹鋼分為五大類，其中三類未標準牌號，兩類為特殊牌號。迄今為止，用量*大和應用范圍*廣的主要集中于標準牌號。</span> &nbsp;&nbsp;</span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">第</span> 1 <span style="font-family:宋體;">類 </span><span style="font-family:Calibri;">-- Cr </span><span style="font-family:宋體;">含量：</span><span style="font-family:Calibri;">10%-14%</span><span style="font-family:宋體;">；典型牌號</span><span style="font-family:Calibri;">409</span><span style="font-family:宋體;">，</span><span style="font-family:Calibri;"><a href="http://www.chaoxu.cc" target="_blank">410L</a></span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">這類鋼在所有不銹鋼中鉻含量*低，因而*便宜，*適合在沒有腐蝕或輕微腐蝕及允許有局部輕微生銹的環境下使用。</span>409 <span style="font-family:宋體;">型不銹鋼起初專門為汽車排氣系統消音器（腐蝕不嚴重的外部）所設計。</span><span style="font-family:Calibri;">410L </span><span style="font-family:宋體;">型不銹鋼常用于容器、公共汽車和長途大轎車，*近用作液晶顯示器的外框。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">第</span> 2 <span style="font-family:宋體;">類 </span><span style="font-family:Calibri;">-- &nbsp;Cr </span><span style="font-family:宋體;">含量：</span><span style="font-family:Calibri;">14%-18%</span><span style="font-family:宋體;">；典型牌號<a href="http://www.chaoxu.cc" target="_blank"> </a></span><span style="font-family:Calibri;"><a href="http://www.chaoxu.cc" target="_blank">430</a></span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">它是一類使用*廣的鐵素體不銹鋼，含有較高的鉻，具有較好的耐蝕性，其多數性能與</span> 304 <span style="font-family:宋體;">類似。在某些應用領域，可替代 </span><span style="font-family:Calibri;">304 </span><span style="font-family:宋體;">型不銹鋼，一般在室內使用具有足夠的耐蝕性。典型的用途包括洗衣機滾筒、室內面板等。典型的 </span><span style="font-family:Calibri;">430 </span><span style="font-family:宋體;">經常作為 </span><span style="font-family:Calibri;">304 </span><span style="font-family:宋體;">替代材料，用于廚房設施、洗碗機、壺和鍋等。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">第</span> 3 <span style="font-family:宋體;">類 </span><span style="font-family:Calibri;">-- &nbsp;Cr </span><span style="font-family:宋體;">含量：</span><span style="font-family:Calibri;">14%-18%</span><span style="font-family:宋體;">，包含穩定化元素 </span><span style="font-family:Calibri;">Ti</span><span style="font-family:宋體;">、</span><span style="font-family:Calibri;">Nb </span><span style="font-family:宋體;">等；典型牌號 </span><span style="font-family:Calibri;">430Ti</span><span style="font-family:宋體;">、</span><span style="font-family:Calibri;">439</span><span style="font-family:宋體;">、</span><span style="font-family:Calibri;">441 </span><span style="font-family:宋體;">等</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">與第</span> 2<span style="font-family:宋體;">類相比，這類型牌號具有良好的焊接性和成形性。在多數情況下，其性能甚至優于 </span><span style="font-family:Calibri;">304</span><span style="font-family:宋體;">。典型用途包括水槽、熱交換管（制糖業、能源等）、汽車排氣系統（比 </span><span style="font-family:Calibri;">409</span><span style="font-family:宋體;">壽命長）和洗衣機的焊接部位。第 </span><span style="font-family:Calibri;">3</span><span style="font-family:宋體;">類牌號甚至可替代 </span><span style="font-family:Calibri;">304</span><span style="font-family:宋體;">用于性能要求更高的場合。</span><span style="font-family:Calibri;">&nbsp;</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">第</span> 4 <span style="font-family:宋體;">類 –</span><span style="font-family:Calibri;">- &nbsp;Mo </span><span style="font-family:宋體;">含量在 </span><span style="font-family:Calibri;">0.5% </span><span style="font-family:宋體;">以上</span><span style="font-family:Calibri;">; </span><span style="font-family:宋體;">典型牌號包括 </span><span style="font-family:Calibri;">434</span><span style="font-family:宋體;">、</span><span style="font-family:Calibri;">436</span><span style="font-family:宋體;">、</span><span style="font-family:Calibri;">444 </span><span style="font-family:宋體;">等</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">這類牌號通過添加鉬增加耐蝕性，其典型的應用領域是熱水箱、太陽能熱水器、汽車排氣系統、電加熱壺和微波爐部件、汽車裝飾條和戶外面板等。</span><a href="http://www.chaoxu.cc" target="_blank">444 </a><span style="font-family:宋體;">不銹鋼的耐蝕性能與 </span><span style="font-family:Calibri;">316</span><span style="font-family:宋體;">不銹鋼相當。</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">第</span> 5 <span style="font-family:宋體;">類 </span><span style="font-family:Calibri;">-- Cr </span><span style="font-family:宋體;">含量：</span><span style="font-family:Calibri;">18%-30%</span><span style="font-family:宋體;">；典型牌號包括 </span><span style="font-family:Calibri;">446</span><span style="font-family:宋體;">、</span><span style="font-family:Calibri;">445/447 </span><span style="font-family:宋體;">等</span></span> </p> <p style="margin:0pt;"> <span style="font-family:宋體;font-size:10.5pt;mso-spacerun:&quot;yes&quot;;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:1.0000pt;"><span style="font-family:宋體;">這類牌號通過添加更多的鉻和含有鉬來提高耐蝕性和抗氧化性。這類牌號的耐蝕性和抗氧化性優于</span>316<span style="font-family:宋體;">。典型用途沿海和其它高耐蝕環境。</span><span style="font-family:Calibri;">JIS 447 </span><span style="font-family:宋體;">的耐蝕性與金屬鈦相當。</span></span> </p>