标准摘要
[中文适用范围]： 本文件规定了 ISO 13623 中定义的用于石油和天然气行业管道运输系统的非合金钢或低合金钢无缝和焊接管道配件的技术交货条件。 本文件适用于弯头等焊接端配件由非合金钢或低合金钢的无缝管和焊管制成的管帽、三通、单个或多个挤压集管、异径管和过渡段。 本文件规定了两类管件，一类与非酸性环境中使用的材料有关，一类与酸性环境中使用的材料有关，如表 1 所示。 表 1 — 管件类别和服务 管件类别 服务类别 B 非酸性服务SISOUR SERVICE 等级 本文件不适用于配件等级的选择。 本文件不适用于工厂焊接加长件的材料或附件。 [外文原描述]： This document specifies the technical delivery conditions for unalloyed or low-alloy steel seamless and welded pipeline fittings for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623. This document is applicable to welding-end fittings such as elbows, caps, tees, single or multiple extruded headers, reducers, and transition sections made from seamless and welded pipe of unalloyed or low-alloy steels. This document specifies two classes of fitting one related to material used in non-sour service and one for material to be use in sour service environment as shown in Table 1. This document is not applicable to the selection of the fitting class. This document is not applicable to the materials for, or the attachment of, factory-welded extensions.
英文名称Petroleum and natural gas industries — Factory bends, fittings and flanges for pipeline transportation systems — Part 2: Fittings