00CR20NI25MO4.5CU超級奧氏體不銹鋼

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00Cr20Ni25Mo4.5Cu是低碳高鎳鉻奧氏體不銹鋼，是法國H.S公司專用材料，耐腐蝕性能極好，在非氧化性酸中（如：硫酸、磷酸、醋酸中有很好的耐腐蝕性，在中性含氯離子介質中具有很好的抗點蝕性。

物理性能

同時具有良好的抗應力腐蝕及抗縫隙腐蝕。適用于70度以下各種濃度的硫酸。

00Cr20Ni25Mo4.5Cu物理性能：

1.密度：8000 Kg/m3

2.線膨脹系數：(20--100攝氏度)0.000015/K;(20--200攝氏度)0.0000156/K;(20--300攝氏度)0.0000161/K;

3.彈性模量：(室溫)188000MPa;(100攝氏度)182000MPa;(200攝氏度)175000MPa;(300攝氏度)167000MPa

4.熱導率：(20攝氏度)12.9W/(m*K);(100攝氏度)13.7W/(m*K);(200攝氏度)14.5W/(m*K);300攝氏度)18.0W/(m*K)

00Cr20Ni25Mo4.5Cu工藝性能:

與其他常用的Cr-Ni奧氏體鋼一樣，具有良好的冷，熱加工性能;

熱鍛時高加熱溫度可達1180攝氏度，低停鍛溫度不小于900攝氏度;

此鋼熱成型可在1000--1150攝氏度進行;

該鋼的熱處理工藝為1100--1150攝氏度，加熱后快冷;

此鋼雖可采用通用的焊接工藝進行焊接，但是恰當的焊接方法是手工電弧焊和鎢極氬弧焊;

當采用手工電弧焊焊接不大于6毫米板材時焊條直徑不大于2.5毫米；當板厚大于6毫米時焊條直徑小于3.2毫米。當焊后需熱處理時，可以在1075--1125攝氏度加熱后快冷進行處理;

用鎢極氬弧焊焊接時的填充金屬可用同材焊條，焊后焊縫須經酸洗，鈍化處理;性能特點

00Cr20Ni25Mo4.5Cu耐腐蝕性能：

00Cr20Ni25Mo4.5Cu鋼主要系為解決硫酸的腐蝕而發展的;同時也耐常壓下濃度，溫度醋酸的腐蝕。它在甲酸，磷酸中，在甲酸與醋酸的混合酸中的耐蝕性能也很好。

采用GB1223-75中T法檢驗OOCr20Ni25Mo4.5Cu鋼的晶間腐蝕傾向的結果顯示,當鋼中含C0.038%時，此鋼出現晶間腐蝕需經敏化1小時以上，因此，即使焊接厚度不大于30mm部件時，只要焊接工藝適當，便沒有晶間腐蝕的危險。通過孔蝕電位測定和孔蝕試驗結果顯示，00Cr20Ni25Mo4.5Cu優于00Cr18Ni10和00Cr18Ni14Mo2等低牌號Cr-Ni奧氏體鋼。

由于00Cr20Ni25Mo4.5Cu鋼中Ni量達25%,故耐應力腐蝕性能亦較一般Cr-Ni奧氏體鋼為佳。

00CR20NI25MO4.5CU不銹鋼規格：圓棒規格直徑6mm-350mm，板材規格厚0.1mm-300mm均有現貨
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