随着含硫天然气田的开发,压力容器逐渐向厚壁、高强度方向发展.在我国目前生产厚板钢材较为困难的条件下,为降低设备壁厚,便于加工,节省材料,对材料强度提出了更高的要求.而在提高材料强度的同时,又必须防止含硫介质造成的硫化物应力腐蚀破裂,因此要求研制强度较高的抗硫新钢种. With the development of sulfur-containing natural gas field, the pressure vessel gradually develops into thick-walled and high-strength direction.Under the difficult conditions of the current production of thick-plate steel in our country, in order to reduce the wall thickness of the equipment, facilitate the processing and save the material, A higher requirement.While improving the strength of the material at the same time, we must also prevent sulfide stress corrosion cracking caused by sulfur-containing media, and therefore require the development of higher intensity of the new anti-sulfur steel.