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西安鐵素體不銹鋼的五大分類

日期:2024-11-23 08:34
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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(biāo)準(zhǔn)牌號,兩類為特殊牌號。迄今為止,用量*大和應(yīng)用范圍*廣的主要集中于標(biāo)準(zhǔn)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.yeyeyule.cn" 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(huán)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(tǒng)消音器(腐蝕不嚴(yán)重的外部)所設(shè)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.yeyeyule.cn" target="_blank"> </a></span><span style="font-family:Calibri;"><a href="http://www.yeyeyule.cn" 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(shù)性能與</span> 304 <span style="font-family:宋體;">類似。在某些應(yīng)用領(lǐng)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(nèi)使用具有足夠的耐蝕性。典型的用途包括洗衣機(jī)滾筒、室內(nèi)面板等。典型的 </span><span style="font-family:Calibri;">430 </span><span style="font-family:宋體;">經(jīng)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(shè)施、洗碗機(jī)、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(wěn)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(shù)情況下,其性能甚至優(yōu)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(yè)、能源等)、汽車排氣系統(tǒng)(比 </span><span style="font-family:Calibri;">409</span><span style="font-family:宋體;">壽命長)和洗衣機(jī)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(yīng)用領(lǐng)域是熱水箱、太陽能熱水器、汽車排氣系統(tǒng)、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.yeyeyule.cn" 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(dāng)。</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(yōu)于</span>316<span style="font-family:宋體;">。典型用途沿海和其它高耐蝕環(huán)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(dāng)。</span></span> </p>

西安鐵素體不銹鋼的五大

西安鐵素體不銹鋼分為五大類,其中三類未標(biāo)準(zhǔn)牌號,兩類為特殊牌號。迄今為止,用量*大和應(yīng)用范圍*廣的主要集中于標(biāo)準(zhǔn)牌號。   

1 -- Cr 含量:10%-14%;典型牌號409,410L

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(huán)境下使用。409 型不銹鋼起初專門為汽車排氣系統(tǒng)消音器(腐蝕不嚴(yán)重的外部)所設(shè)計。410L 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。

2 --  Cr 含量:14%-18%;典型牌號 430

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(shù)性能與 304 類似。在某些應(yīng)用領(lǐng)域,可替代 304 型不銹鋼,一般在室內(nèi)使用具有足夠的耐蝕性。典型的用途包括洗衣機(jī)滾筒、室內(nèi)面板等。典型的 430 經(jīng)常作為 304 替代材料,用于廚房設(shè)施、洗碗機(jī)、壺和鍋等。

3 --  Cr 含量:14%-18%,包含穩(wěn)定化元素 Ti、Nb 等;典型牌號 430Ti、439441

與第 2類相比,這類型牌號具有良好的焊接性和成形性。在多數(shù)情況下,其性能甚至優(yōu)于 304。典型用途包括水槽、熱交換管(制糖業(yè)、能源等)、汽車排氣系統(tǒng)(比 409壽命長)和洗衣機(jī)的焊接部位。第 3類牌號甚至可替代 304用于性能要求更高的場合。 

4 類 –-  Mo 含量在 0.5% 以上; 典型牌號包括 434、436444

這類牌號通過添加鉬增加耐蝕性,其典型的應(yīng)用領(lǐng)域是熱水箱、太陽能熱水器、汽車排氣系統(tǒng)、電加熱壺和微波爐部件、汽車裝飾條和戶外面板等。444 不銹鋼的耐蝕性能與 316不銹鋼相當(dāng)。

5 -- Cr 含量:18%-30%;典型牌號包括 446、445/447

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(yōu)于316。典型用途沿海和其它高耐蝕環(huán)境。JIS 447 的耐蝕性與金屬鈦相當(dāng)。

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