En Iso 13920-bf [extra Quality] -

EN ISO 13920-BF specifies general tolerances for welded constructions and position tolerances for plates. The standard applies to welded constructions made from steel, aluminum, and other metals. The tolerances specified in EN ISO 13920-BF are essential for ensuring that welded products meet the required quality and accuracy standards.

Understanding these codes ensures that fabricators aren't over-engineering parts and that clients receive products that fit their structural requirements without unnecessary expense. en iso 13920-bf

(For the sake of this post, we will assume the user implies a requirement, which is standard Class BD , or is asking about the specifics of Class B ). EN ISO 13920-BF specifies general tolerances for welded

Specifying on a contract or purchase order is not just a suggestion—it is a contractual obligation. Choosing "BF" instead of a tighter class (like

Choosing "BF" instead of a tighter class (like "A") can save thousands in labor. It acknowledges that heat from welding naturally distorts metal, so "perfect" isn't always practical or necessary.