16Mn Seamless Steel Tube and Q345 Seamless Steel Tube A simple introduction to 16Mn seamless steel tube: Q345 steel is an alternative to the old steel 12MnV, 14MnNb, 18Nb, 16MnRE, 16Mn and many other steels, instead of just replacing the 16Mn steel. A material. In terms of chemical composition, 16Mn and Q345 are also different. What's more important is that there is a large difference in the thickness groupings of the two steels based on the yield strength, and this will inevitably cause changes in the allowable stress of materials of certain thicknesses. Therefore, it is not appropriate to simply apply the allowable stress of 16Mn steel to Q345 steel, but the allowable stress should be re-determined according to the new steel thickness grouping size. EN1092-1 Flange is an European standard for flanges, including Type o1 plate flange, Type 02 lap joint flange, Type 04 flange, Type 05 blind flange, Type 12 Hubbed Slio-on, and Type 13 Threaded Flanges. EN Flange,EN1092 Flanges,EN1092-1 Welding Neck Flange,EN1092-1 Blind Flanges Shandong Zhongnuo Heavy Industry Co.,Ltd. , https://www.znforged.com
The main composition of Q345 steel is basically the same as that of 16Mn steel, with the difference being the addition of V, Ti, and Nb trace alloy elements. A small amount of V, Ti, and Nb alloying elements can refine grains, improve the toughness of the steel, and greatly improve the comprehensive mechanical properties of the steel. Because of this, the thickness of the steel plate can be made larger. Therefore, the comprehensive mechanical properties of Q345 steel should be better than 16Mn steel, especially its low temperature performance is more than 16Mn steel does not have. The allowable stress of Q345 steel is slightly higher than that of 16Mn steel.
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16Mn Seamless Steel Tube and Q345 Seamless Steel Tube