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无锡迪发钢管有限公司定制说明
Q345A:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035 ;
Q345B:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035;
Q345C:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.030,Al ≥0.015;
Q345D:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.025,Al ≥0.015;
Q345E:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.025,S≤0.020,Al ≥0.015;
Q345A、B、C、D、E均含Nb≤0.07,V≤0.15,Ti≤0.20,Cr≤0.30, N≤0.012,Mo≤0.10。
20#、Q235B
方管重量计算公式:4*壁厚*(边长-壁厚)*0.00785
矩形管重量计算公式:(周长/3.14-壁厚)*壁厚*0.02466

![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252347430.jpg)
![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252300026.jpg)
![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252250174.jpg)
![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252197958.jpg)
![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252186837.jpg)
十多年来,苏钜钢铁集团有限公司凭借雄厚的技术力量,丰富的施工经验,严密科学的管理体系,承建了众多标志性 方矩管、工程,赢得了新老客户的赞扬和肯定,在同行业中享有很高和良好的信誉。
![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252127162.jpg)
![阜阳[本地]矩形管无缝方管买的放心安兴用的舒心](http://2024aiimg.059t.com//ypm_soft/1119/846/202402021252097807.jpg)
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