一般用途热轧扁钢筋尺寸及形状和尺寸公差 EN 10058 - 2018

    This document specifies the nominal dimensions and the tolerances on  dimensions and shape of hot-rolled steel flat bars and steel wide flats for general purposes. 
    This document is not applicable to spring leaves, see EN 10092-1.

1. Scope
2. Normative references
3. Terms and definitions
4. Designation
5. Dimensions
6. Tolerances on dimensions and shape
    6.1 Thickness (t)
    6.2 Width (b)
    6.3 Length (L)
    6.4 Straightness (q)
    6.5 Out-of-squareness (u)
    6.6 Maximum permissible variation in thickness across the width for wide flats
7. Measurement
    7.1 Thickness and width
    7.2 Length
    7.3 Straightness
    7.4 Out-of-sauareness
    7.5 Maximum permissible variation in thickness across the width for wide flats
Bibliography.