SAE标准涵盖了标准化电阻焊接、冷拔、单壁、SAE 1021碳钢压力管，用于压力管道和其他要求管道质量适合弯曲、扩口、成型和钎焊的应用。根据本规范生产的材料等级的碳含量和锰含量高于SAE J525中规定的材料等级，且用于比SAE J525同等尺寸更高的压力应用。由于碳和锰含量较高，与SAE J525产品相比，成品管的成形特性降低。 在指定按照本规范生产的材料时，应特别注意成品组件的整体成型要求。为了在全球市场内实现标准化，并确保公司在国际市场上保持竞争力，我们打算将其转换为公制管尺寸，这将:导致一个全球系统引导用户选择首选系统降低复杂性消除库存重复

The SAE Standard covers normalized electric resistance welded, cold-drawn, single-wall, SAE 1021 carbon steel pressure tubing intended for use as pressure lines and in other applications requiring tubing of a quality suitable for bending, flaring, forming, and brazing.The grade of material produced to this specification is higher in carbon content and manganese content than the grade of material specified in SAE J525 and is intended to service higher pressure applications than equivalent sizes of SAE J525. Due to the higher carbon and manganese content the forming characteristics of the finished tube are diminished versus the SAE J525 product. Special attention to the overall forming requirements of the finished assembly shall be taken into consideration when specifying material produced to this specification.In an effort to standardize within a global marketplace and ensuring that companies can remain competitive in an international market it is the intent to convert to metric tube sizes which will:Lead to one global systemGuide users to preferred systemReduce complexityEliminate inventory duplications