<p>力学性能<br /> 　　黄铜中由于含锌量不同，机械性能也不一样，图7是黄铜的机械性能随含锌量不同而变化的曲线。对于α黄铜，随着含锌量的增多，σb和δ均不断增高。对于（α+β）黄铜，当含锌量增加到约为45%之前，室温强度不断提高。若再进一步增加含锌量，则由于合金组织中出现了脆性更大的r相（以Cu5Zn8化合物为基的固溶&nbsp; 黄铜<br /> 体），强度急剧降低。（α+β）黄铜的室温塑性则始终随含锌量的增加而降低。所以含锌量超过45%的铜锌合金无实用价值。 　　普通黄铜的用途极为广泛如水箱带、供排水管、奖章、波纹管、蛇形管、冷凝管、弹壳及各种形状复杂的冲制品、小五金件等。随着锌含量的增加从H63到H59，它们均能很好地承受热态加工，多用于机械及电器的各种零件、冲压件及乐器等处。</p> <p>单品&nbsp;品名&nbsp;规格&nbsp;材质&nbsp;产地/厂家&nbsp;地域&nbsp;价格 (元/吨)&nbsp;涨跌&nbsp;报价日期<br /> 镀锌管&nbsp;镀锌管&nbsp;8寸*5&nbsp;Q235&nbsp;利达&nbsp;天津&nbsp;5070&nbsp;0 &nbsp;12-06-06<br /> 镀锌管&nbsp;镀锌管&nbsp;6寸*4&nbsp;Q235&nbsp;利达&nbsp;天津&nbsp;4940&nbsp;0 &nbsp;12-06-06<br /> 镀锌管&nbsp;镀锌管&nbsp;5寸*4&nbsp;Q235&nbsp;利达&nbsp;天津&nbsp;4950&nbsp;0 &nbsp;12-06-06<br /> 镀锌管&nbsp;镀锌管&nbsp;4寸*3.75&nbsp;Q235&nbsp;利达&nbsp;天津&nbsp;4730&nbsp;0 &nbsp;12-06-06<br /> 镀锌管&nbsp;镀锌管&nbsp;3寸*3.75&nbsp;Q215&nbsp;利达&nbsp;天津&nbsp;4950&nbsp;0 &nbsp;12-06-06<br /> 镀锌管&nbsp;镀锌管&nbsp;2.5寸*3.75&nbsp;Q215&nbsp;利达&nbsp;天津&nbsp;4950&nbsp;0 &nbsp;12-06-06<br /> 镀锌管&nbsp;镀锌管&nbsp;2寸*3.25&nbsp;Q215&nbsp;利达&nbsp;天津&nbsp;4950&nbsp;0 &nbsp;12-06-06</p> <p>本公司主要生产不锈钢管，<a style="word-spacing:0px;font:medium Simsun;text-transform:none;text-indent:0px;white-space:normal;letter-spacing:normal;background-color:#ffffff;orphans:2;widows:2;webkit-text-size-adjust:auto;webkit-text-stroke-width:0px;" href="http://www.q345bw.com/">Q345B角钢</a><span style="display:inline! 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