抗(kang)蝕(shi)性(xing)(xing)(xing)又(you)叫(jiao)耐蝕(shi)性(xing)(xing)(xing)，是指金(jin)屬(shu)材料抵抗(kang)周圍介質(zhi)腐(fu)蝕(shi)作用(yong)的(de)(de)能力。金(jin)屬(shu)的(de)(de)抗(kang)蝕(shi)性(xing)(xing)(xing)好(hao)，就不易(yi)受到周圍介質(zhi)的(de)(de)作用(yong)而發生質(zhi)量上的(de)(de)變化(hua)(hua)，表(biao)現出穩(wen)定的(de)(de)化(hua)(hua)學(xue)(xue)性(xing)(xing)(xing)能，因(yin)此又(you)叫(jiao)作化(hua)(hua)學(xue)(xue)穩(wen)定性(xing)(xing)(xing)。根據腐(fu)蝕(shi)的(de)(de)種類不同，抗(kang)蝕(shi)性(xing)(xing)(xing)可分為(wei)抗(kang)氧化(hua)(hua)性(xing)(xing)(xing)，耐酸性(xing)(xing)(xing)等。

 一般來(lai)說，鋼鐵的抗(kang)蝕性(xing)不(bu)如有(you)色金屬(shu)(shu)。但是(shi)，不(bu)同(tong)(tong)(tong)有(you)色金屬(shu)(shu)的抗(kang)蝕性(xing)不(bu)同(tong)(tong)(tong)，同(tong)(tong)(tong)一種有(you)色金屬(shu)(shu)的抗(kang)蝕性(xing)的好壞，也(ye)因(yin)周圍腐蝕介質的種類不(bu)同(tong)(tong)(tong)而異。

 抗蝕性，是在不(bu)同介(jie)質作用(yong)下的零件(jian)和(he)構件(jian)選用(yong)金屬材料的重要依(yi)據。