Open AccessStudy on Mechanical Behavior of High Pressure Heater Tubesheet 20MnMoNb
Author(s) -
Yong Du,
Bin Ren,
Liu Longxian,
Xiaoying Tang,
Xue Xiaolong,
Wancheng Zhu,
Ouyang Weiping
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/330/4/042045
Subject(s) - materials science , ultimate tensile strength , forging , yield (engineering) , alloy , composite material , tube (container) , high pressure , metallurgy , engineering , engineering physics
20MnMoNb alloy steel is a structural steel for forgings with good mechanical properties, which is typically used in the manufacture of pressure vessel tube sheets. The mechanical properties of 20MnMoNb at different temperatures were systematically studied. It is shown that the 20MnMoNb material has the good high temperature resistance. With the increase of temperature, the yield strength and tensile strength of the material have little difference. The tensile strength is nearly 800MPa at high temperature, and the yield strength is about 643MPa, which could meet the complex working environment of the high pressure heaters. It is helpful to improve the accuracy of analytical design results and provide a data base for the revision of subsequent material standards.