江都Q345B圆钢—扬州高邮宝应—16Mn资源系列

规格齐全的高邮Q345B圆钢扬州/宝应/江都16Mn资源系列，常备规格齐全，长期经销淮钢/南钢/中天/包钢/湘钢等钢厂的Q345低合金圆钢，Q345B类属：中国标准低合金结构钢号，Q345B与Q235B的区别：不同：Q235的屈服强度下限为235mpa,Q345的屈服强度下限为345mpa（Q的意义为汉字的"屈"字，后面的数值代表屈服强度下限）；二者合金含量不同：Q235为普通碳钢，Q345为低合金钢。（与旧标准牌号对照12mnv、16mn、16mnre、18nb、14mnnb）；Q345B与Q235B性能和应用对比：Q235-金属结构件，心部强度要求不高的渗碳或氰化零件，拉杆、连杆、吊钩、车钩、螺栓螺母、套筒、轴及焊接件。Q345综合力学性能良好，低温性能亦可，塑性和焊接性良好，用做中低压容器、油罐、车辆、起重机、矿山机械、电站、桥梁等承受动荷的结构、机械零件、建筑结构、一般金属结构件，热轧或正火状态使用，可用于-40℃以下寒冷地区的各种结构。如结构是强度控制，可考虑采用Q345，如结构是刚度控制，可考虑采用Q235。价格Q345稍贵点，但因其高强度，可节省材料。Q345B series of complete specifications, standing complete specifications, long-term distribution / Nanjing / transit / Baotou Huaigang / Xiangtan Steel and other steel low alloy steel, which belongs to the category of Chinese: standard low alloy structural steel, the difference between different: the yield strength is 235mpa, the yield strength of Q345 345mpa Q (limit of significance for the Chinese characters "Qu", behind the numerical representation of yield strength); two different alloy content; properties and application of contrast: Q235- pieces of metal, or parts of cyanide carburizing high strength is not necessary, rod, connecting rod, hook, hook, bolt and nut, shaft sleeve, and welding parts. The comprehensive mechanical properties of Q345 low temperature performance is good, also, ductility and good weldability, used in pressure vessels, tanks, vehicles, cranes, mining machinery, power plants, bridges under dynamic load of the structure, machinery parts, building structure, general metal structure, hot rolling or normalizing state, can be used for a variety of structures -40 the cold area. Such as the strength of the structure is controlled, can be considered using Q345, such as the structure is the stiffness control, can be considered using Q235. Price Q345 a little expensive, but because of its high strength, can save material.

揃っている南通Q345B丸鋼江阴16Mn資源シリーズ、常備が揃っている、長期的な販売淮钢/南钢/中天/包钢/湘钢など低合金鋼溧阳Q345丸鋼、丹阳Q345B類所属：中国標準低合金構造钢号、无锡Q345Bと違い：違う：下限を235mpa降伏強度、太仓Q345降伏強度下限を345mpa（Ｑ意味は漢字曲げる字、後ろ数値代表降伏強度下限）；二者異なる：合金含有量は普通炭素、宜兴Q345を低合金鋼。（と旧標準マーク対照；张家港Q345BとQ235B性能と応用対比：金属構造件、心部強度要求は高くない浸炭や靑化部品、レバー、コンロッド、フック、連結器、ボルトナット、ソケット、軸及び溶接件。常熟Q345総合力学性能が良好で、低温性能も、塑性と溶接性が良好で、使用中低圧容器、タンク、車両、クレーン、鉱山機械、発電所、橋を受け動蓮構造、機械部品、建築構造、一般金属構造件、熱延や焼き均し状態を使用し、使える-よんじゅう℃以下寒い地方で様々な構造。例えば構造は強さ制御考えを採用Q345、例えば構造剛性コントロールを採用し、考え。値段がちょっと高いQ345点だが、そ高強度、材料節約。