HSn70-1錫黃銅

產(chǎn)品形式：棒、板、管、法蘭、帶材、絲、鍛件等

產(chǎn)品規(guī)格范圍:直徑6-500mm,長(zhǎng)度0.5-30m;

產(chǎn)品規(guī)格范圍:厚度0.5-80mm,長(zhǎng)1-6米,寬0.5-3m

產(chǎn)品規(guī)格范圍:外徑6-530mm，壁厚0.5-50mm，長(zhǎng)度1-12m

可根據(jù)客戶要求試制或生產(chǎn)

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HSn70-1錫黃銅是含有微量砷的銅鋅錫三元系的a單相黃銅，中國(guó)國(guó)家標(biāo)準(zhǔn) (GB5232—85)分類中列為加砷黃銅。

特性及適用范圍

微量砷能抑制脫鋅腐蝕，進(jìn)一步提高合金的耐蝕性能。HSn70-1具有良好的力學(xué)性能，用于制作換熱器和接觸腐蝕性液體的導(dǎo)管，特別廣泛應(yīng)用于內(nèi)陸熱電廠制作高強(qiáng)耐蝕的熱交換器冷凝管。近年來(lái)研究證明，向HSn70-1中添加微量硼、鎳等元素，能更好地提高合金的耐蝕性能。HSn70-1有應(yīng)力腐蝕破裂傾向，對(duì)冷加工管材必須進(jìn)行消除應(yīng)力低溫退火。HSn70-1熱壓加工時(shí)易裂，要嚴(yán)格控制雜質(zhì)的含量。

HSn70-1化學(xué)成分

鋅(Zn)余量,

鉛(Pb)≤0.05,

鐵(Fe)≤0.10,

銻(Sb)≤0.005,

磷(P)≤0.01,

鉍(Bi)≤0.002,

錫(Sn)0.8～1.3,

砷(As)0.03～0.06,

銅(Cu)69.0～71.0,

雜質(zhì)總和%≤0.3

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