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鑄鐵井蓋

鑄鐵井蓋.jpg

鑄鐵井蓋具有的產品特點:

1、鑄鐵井蓋韌性好。沖擊值與中碳鋼材詳盡,是灰鐵材料的10倍以上。

2、抗腐蝕性強。噴水腐蝕試驗,九十天的腐蝕量僅為鋼管的1/40,是灰鐵管的1/10。使用壽命是灰鐵管的2倍,是普通鋼管的5倍。

3、塑性好。延伸率≥7%,與高碳鋼材相近,而灰鐵材料延伸率為零。

4、強度高??估瓘姸权産≥420MPa,屈服強度ós≥300MPa,與低碳鋼材相同,是灰鐵材料的三倍。


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