ISO 6363-6:2022 标准是针对冷拔铝及铝合金圆管的尺寸公差和形状公差进行规定的。本标准适用于直径为 3 mm 到 350 mm 的圆管。

本标准规定了圆管的直径、壁厚、圆度、直线度、长度、表面质量等方面的公差要求。其中，直径公差分为 H11、H12、H13 三个等级，壁厚公差分为 H14、H15 两个等级，圆度公差分为 H9、H10、H11 三个等级，直线度公差分为 H9、H10、H11 三个等级，长度公差分为 L、S 两个等级，表面质量公差分为 Rz 5、Rz 10、Rz 20 三个等级。

本标准的实施可以保证冷拔铝及铝合金圆管的尺寸和形状的精度，提高产品的质量和使用效果。

相关标准
- ISO 6363-1:2012 Wrought aluminium and aluminium alloys - Cold-drawn rods/bars, tubes and wires - Part 1: Technical conditions for inspection and delivery
- ISO 6363-2:2012 Wrought aluminium and aluminium alloys - Cold-drawn rods/bars, tubes and wires - Part 2: Mechanical properties
- ISO 6363-3:2012 Wrought aluminium and aluminium alloys - Cold-drawn rods/bars, tubes and wires - Part 3: Round bars, tolerances on dimensions and form
- ISO 6363-4:2012 Wrought aluminium and aluminium alloys - Cold-drawn rods/bars, tubes and wires - Part 4: Square bars, tolerances on dimensions and form
- ISO 6363-5:2012 Wrought aluminium and aluminium alloys - Cold-drawn rods/bars, tubes and wires - Part 5: Hexagonal bars, tolerances on dimensions and form