压力用途的焊接钢管 交货技术条件 第4部分:规定高温性能的埋弧焊接非合金钢管和合金钢管

[中文适用范围]： ISO 9330 的本部分规定了由具有指定高温性能的非合金钢或合金钢制成的圆形横截面埋弧焊管的技术交货条件。 这些管用于在材料还承受高温的情况下用于压力目的，例如用于蒸汽发生设备的构造和互连管道系统。 用户应考虑适当的国际应用标准和相关国家法律法规的要求。 对于锅炉和压力容器，可采用国际标准 ISO 831、ISO 2604 和 ISO 5730。 一般交货技术要求参见 ISO 404。 注：英语单词“tube”和“pipe”是同义词。 [外文原描述]： This part of ISO 9330 specifies the technical delivery conditions for submerged arc-welded tubes of circular crosssection, made of unalloyed or alloyed steel with specified elevated temperature properties. These tubes are intended for pressure purposes in cases when the material is also subjected to elevated temperatures, e.g. for the construction of steam generating equipment and for interconnecting pipework. The requirements of appropriate international application standards and relevant national legal regulations shall be taken into account by the user. For boilers and pressure vessels International Standards ISO 831, ISO 2604 and ISO 5730 are available. For the general technical delivery requirements, see ISO 404. NOTE The English words "tube" and "pipe" are synonymous.