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        0Cr15Ni6MoCuNb不銹鋼管機(jī)械性能

        作者:不銹鋼管 來(lái)源:www.s32205bxgg.com 點(diǎn)擊數(shù): 更新時(shí)間:2018年01月11 【字體:

        0Cr15Ni6MoCuNb不銹鋼管機(jī)械性能(Custom 450)耐蝕性0Cr15Ni6MoCuNb鋼在鹽霧大氣條件下,具有良好的耐蝕性,在35℃的5%和20%鹽水噴霧試驗(yàn)中呈現(xiàn)出優(yōu)良的耐銹性和耐點(diǎn)蝕性能。在酸性介質(zhì)中的耐蝕性優(yōu)于Cr13型馬氏體不銹鋼,與0Cr19Ni鋼相當(dāng)(見(jiàn)下表)。表 0Cr15Ni6MoCuNb的耐蝕性                                    鋼號(hào)                                    48h的腐蝕速率,mm∕a                                                    硬度            HRC                                    20% HNO3            93℃                                    5% H2SO4            24℃                                    50% CH3COOH            沸騰                                                    1Cr13                                    45                                    0.20                                    43.99①                                    6.76①                                                    ﹙AISI 410﹚                                    28                                    1.50②                                    30.93                                    41.33                                                    0Cr15Ni6MoCuNb                                    30                                    0.05                                    0.025                                    0.025                                                    ﹙Custom 450﹚                                    41                                    0.05                                    0.025                                    0.025                                                    0Cr19Ni9            ﹙AISI 304﹚                                    ﹙HRB﹚            80                                                0.025                                                0.025                                                0.025                        注:①第1個(gè)48h試驗(yàn)周期,幾個(gè)或全部試驗(yàn)周期的腐蝕速率。 ②第3個(gè)48h試驗(yàn)周期,腐蝕速率增加到5.08mm/a。

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