钒改性铬钼钢厚壁压力容器制造考虑因素

[中文适用范围]： 该最佳实践报告补充了 API 934-A，并指定了在使用用于高温高压氢气服务的钒改性 Cr-Mo 材料建造新的厚壁压力容器时应遵守的额外制造注意事项。它适用于根据 ASME 规范第 VIII 节@第 2 部分@设计@制造@认证和记录的船舶，包括 ASME 规范@铬钼钢补充要求和 ASME 规范案例 2151@（如适用）的第 3.4 段（或同等标准）国际代码）。本报告涵盖的标称材料化学成分是钒改性钢，包括 2Cr-1Mo-V@、3Cr-1Mo-V-Ti-B@ 和 3Cr-1Mo-V-Cb-Ca 钢。这些容器的内表面可能具有奥氏体不锈钢包层或堆焊层，以提供额外的耐腐蚀性。 [外文原描述]： This document is a best practice guideline to be used by fabricators, in conjunction with API RP 934-A, when constructing new heavy wall pressure vessels with vanadium-modified Cr-Mo steels intended for service in petroleum refining, petrochemical or chemical facilities. These materials are primarily used in high temperature, high pressure services which contain hydrogen. The document provides typical practices to be followed during fabrication, based upon experience and the knowledge gained from actual problems that have occurred during the fabrication of vanadium-modified Cr-Mo steels.