1、鈦(tai)在空氣(qi)和(he)氧(yang)化(hua)(hua)性(xing)，中(zhong)性(xing)水(shui)溶液介質(zhi)中(zhong)，其(qi)表(biao)面(mian)很易產(chan)生致密的氧(yang)化(hua)(hua)鈦(tai)鈍化(hua)(hua)膜(mo)，使鈦(tai)的電(dian)(dian)極(ji)電(dian)(dian)位(wei)顯著正移，大大提高(gao)了熱(re)力(li)學穩(wen)定性(xing)。以鈍性(xing)系數來表(biao)示金屬鈍化(hua)(hua)后化(hua)(hua)學穩(wen)定性(xing)提高(gao)的程(cheng)度，鐵為(wei)0.18，鎳為(wei)0.37，鉬為(wei)0.49，鉻為(wei)0.74，鋁為(wei)0.82，而(er)鈦(tai)則為(wei)2.44。芒(mang)鈦(tai)網了解到(dao)鈦(tai)在許多介質(zhi)中(zhong)具有比(bi)(bi)不銹鋼(gang)、鋁等好得多的耐(nai)蝕性(xing)。(移動(dong)式容器還(huan)利用了鈦(tai)比(bi)(bi)重輕、比(bi)(bi)強度高(gao)的特性(xing))

2、鈦(tai)(tai)(tai)不存(cun)在像鐵素體鋼那樣的(de)低(di)溫(wen)(wen)脆(cui)性問題，鈦(tai)(tai)(tai)可(ke)(ke)以用(yong)做(zuo)溫(wen)(wen)度(du)低(di)至-269度(du)的(de)低(di)溫(wen)(wen)容(rong)(rong)器,但由(you)于奧氏體不銹鋼,鋁,銅,等也可(ke)(ke)以用(yong)做(zuo)低(di)溫(wen)(wen)容(rong)(rong)器,且比鈦(tai)(tai)(tai)便宜(yi),因此鈦(tai)(tai)(tai)實際上(shang)很少用(yong)于低(di)溫(wen)(wen)固定式(shi)容(rong)(rong)器,在航空、航天中鈦(tai)(tai)(tai)用(yong)做(zuo)移動式(shi)低(di)溫(wen)(wen)容(rong)(rong)器，重要是利用(yong)了鈦(tai)(tai)(tai)的(de)高(gao)比強度(du)、重輕(qing)量的(de)特點(dian)。

3、在海(hai)水(shui)、鹽(yan)水(shui)等含氯介(jie)質中，碳素鋼(gang)，低合金(jin)鋼(gang)，一般不(bu)銹鋼(gang)，鋁耐(nai)蝕(shi)性均不(bu)好，而(er)鈦具(ju)有(you)獨(du)特(te)優異的耐(nai)蝕(shi)性，約有(you)50%的鈦容器用于(yu)抗含氯介(jie)質的腐蝕(shi)。

4、由于(yu)鈦的耐蝕(shi)性是(shi)由于(yu)表(biao)面氧化膜所致，因此(ci)一(yi)般的工業純鈦和鈦合金在高溫鹽酸(suan)等強(qiang)還原性介質(zhi)中不耐蝕(shi)。Ti-32Mo可(ke)耐鹽酸(suan)腐蝕(shi)，但其塑性和工藝(yi)性能(neng)差，尚未列(lie)入壓力加工鈦材標準，也未列(lie)入本(ben)標準中作為(wei)容器用鈦。

5、鈦(tai)在(zai)一定條件(jian)下的發煙硝酸、干氯氣、甲醇、三氯乙(yi)烯(xi)、液態(tai)四氧(yang)化(hua)二氮，熔融金屬(shu)鹽，四氯化(hua)碳等介質可(ke)能產(chan)生燃燒、爆炸或應(ying)力腐(fu)蝕，使鈦(tai)容器產(chan)生惡性事故，鈦(tai)容器對這些介質應(ying)回避或慎(shen)用。

6、在溫度超過500度的純氧或溫度超過1200度的空(kong)氣中，鈦會燃燒(shao)，因此(ci)鈦容(rong)器(qi)不(bu)得在接觸(chu)(chu)空(kong)氣和氧的情況下接觸(chu)(chu)明火，以避免鈦容(rong)器(qi)燃燒(shao)。

7、鈦材和(he)鈦容器一般不(bu)要(yao)求考核沖擊韌性。

8、鈦的(de)用(yong)(yong)(yong)(yong)(yong)(yong)途主(zhu)要有(you)兩類。一為(wei)(wei)航空中用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)超音速飛機(ji)等(deng)。主(zhu)要用(yong)(yong)(yong)(yong)(yong)(yong)其(qi)高的(de)比(bi)強度(du)。主(zhu)要牌號(hao)為(wei)(wei)Ti-6Al-4V，另一為(wei)(wei)用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)民(min)用(yong)(yong)(yong)(yong)(yong)(yong)工(gong)(gong)業，主(zhu)要用(yong)(yong)(yong)(yong)(yong)(yong)其(qi)優異的(de)耐蝕性，主(zhu)要牌號(hao)為(wei)(wei)工(gong)(gong)業純鈦。芒鈦網(wang)了解到我國90%以(yi)上的(de)鈦用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)民(min)用(yong)(yong)(yong)(yong)(yong)(yong)工(gong)(gong)業，民(min)用(yong)(yong)(yong)(yong)(yong)(yong)工(gong)(gong)業用(yong)(yong)(yong)(yong)(yong)(yong)鈦中約有(you)3/4用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)容器(包(bao)括換熱器)因(yin)此(ci)我國容器用(yong)(yong)(yong)(yong)(yong)(yong)鈦在鈦工(gong)(gong)業中占舉足輕重的(de)位置。