硝(xiao)酸(suan)(suan)有(you)強(qiang)酸(suan)(suan)的腐蝕(shi)性(xing),又(you)具(ju)有(you)強(qiang)氧化(hua)性(xing)。對于(yu)濃(nong)(nong)(nong)(nong)度在(zai)(zai)(zai)70%以(yi)下(xia)的稀硝(xiao)酸(suan)(suan),鉻(ge)(ge)和(he)(he)鉻(ge)(ge)鎳不(bu)銹(xiu)鋼都(dou)有(you)優良(liang)的耐(nai)蝕(shi)性(xing),適用(yong)溫(wen)度可(ke)到沸(fei)點。對于(yu)濃(nong)(nong)(nong)(nong)度更高的硝(xiao)酸(suan)(suan),常溫(wen)下(xia)可(ke)適用(yong),但(dan)是超(chao)過65℃將加(jia)快腐蝕(shi),對于(yu)高溫(wen)高濃(nong)(nong)(nong)(nong)度的濃(nong)(nong)(nong)(nong)硝(xiao)酸(suan)(suan),可(ke)以(yi)選用(yong)高鉻(ge)(ge)、鎳成分(fen)的不(bu)銹(xiu)鋼。硝(xiao)酸(suan)(suan)濃(nong)(nong)(nong)(nong)度在(zai)(zai)(zai)80%以(yi)下(xia)時(shi),鋁(lv)和(he)(he)鋁(lv)合金迅速腐蝕(shi),在(zai)(zai)(zai)常溫(wen)下(xia),80%濃(nong)(nong)(nong)(nong)度以(yi)下(xia)的硝(xiao)酸(suan)(suan)和(he)(he)硝(xiao)酸(suan)(suan)蒸氣中,鋁(lv)和(he)(he)鋁(lv)合金有(you)良(liang)好(hao)的耐(nai)蝕(shi)性(xing)。高硅鑄鐵能耐(nai)各種濃(nong)(nong)(nong)(nong)度和(he)(he)溫(wen)度(沸(fei)點)的硝(xiao)酸(suan)(suan),價格適中,應用(yong)廣泛。
高硅鑄(zhu)鐵(STSi15R):濃度93%以下的一切(qie)溫度:
高鉻(ge)鑄鐵(Cr28):濃(nong)度80%以下的一切溫(wen)度;
不銹鋼(SUS304、SUS316、SUS316L):濃度80%以下的(de)一切溫度;
S-05鋼(0Cr13Ni7Si4):濃(nong)度98%以下(xia)的一切溫度;
工(gong)業純(chun)鈦(TA1、TA2):沸點以下的一(yi)切濃度(除發煙外(wai));
工業純鋁(Al):室溫的一切濃(nong)度(僅用(yong)于(yu)容器)。