镀锌管国标最新报价 掌握首条价格信息

作者: 镀锌管国标 来源: www.niutoug.com 日期: 2019-08-21 17:25:24 人气: - 评论: 14

镀锌管国标最新报价 掌握首条价格信息,关注13820022223微信号每天更新最新价格。掌握一手镀锌管报价信息。我公司还提供以下商品:




镀锌管国标最新报价 掌握首条价格信息

一、热镀锌钢管的重量系数:


公称壁厚mm 2.0 2.5 2.8 3.2 3.5 3.8 4.0 4.5


系数c 1.064 1.051 1.045 1.040 1.036 1.034 1.032 1.028


钢的牌号:Q215A;Q215B;Q235A;Q235B


试验压力值/Mpa:D10.2-168.3mm为3Mpa;D177.8-323.9mm为5Mpa。



镀锌管国标最新报价 掌握首条价格信息

    镀锌管执行标准;GB/T2518-2008,材质为Q235B/Q345B,表面光滑无斑点,各项指标都符合国际标准

鼎泰钢管公司,专业从事钢铁批发。公司常年代理马钢,南钢,沙钢,日照钢铁,津西钢铁等钢厂的产品,公司主要销售各大钢厂天津H型钢销售,天津镀锌钢管销售,天津焊管销售,天津螺旋焊管销售,天津方管销售,天津矩形管销售,天津热镀锌方管销售,天津热镀锌角钢销售,天津热镀锌槽钢销售,天津开平板销售,天津圆钢销售,天津碳圆销售,天津扁钢销售,天津中厚钢板销售、天津H型钢销售、天津工字钢销售、天津角钢销售、天津槽钢销售和天津无缝管销售等

镀锌管国标最新报价 掌握首条价格信息

二、热镀锌钢管理论重量表及公式


热镀锌钢管理论重量公式:(直径-壁厚)x壁厚x0.02466*1.0599=每米重量(公斤/米)

镀锌管的用途:

三、常说的镀锌管现在主要用于输送煤气、暖气。镀锌管作为水管,使用几年后,管内产生大量锈垢,流出的黄水不仅污染洁具,而且夹杂着不光滑内壁滋生的细菌;锈蚀造成水中重金属含量过高,严重危害人体的健康。六、七十年代,国际上发达国家开始开发新型管材,并陆续禁用镀锌管。中国建设部等四部委也发文明确从二〇〇〇年起禁用镀锌管。

四、镀锌管的生产工艺

黑件检查→挂料→脱脂→漂洗→酸洗→清洗→浸渍助镀剂→热空气烘干→热浸镀锌→内外吹→冷却→钝化和漂洗→卸料→检验、修整→打字标识→包装入库、运输。


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