En Iso - 13920-bf

This article explores what EN ISO 13920-BF entails, its classifications, and why it is critical for quality control in manufacturing. What is EN ISO 13920-BF?

This post breaks down the EN ISO 13920 standard, specifically focusing on the tolerance class, to help you understand when to use it and how to apply it. en iso 13920-bf

| Parameter | Requirement | |-----------|--------------| | Weld type | Butt weld, single V, or U with backing | | Backing location | Root side | | Backing material | Steel, ceramic, or permanent (specified separately) | | Dimensional tolerance | Class C (medium) or Class D (coarse) per EN ISO 13920 | | Inspection | Visual after backing, then after final weld | This article explores what EN ISO 13920-BF entails,

is the European adoption of the international standard ISO 13920:1996 – Welding – General tolerances for welded constructions . It specifies general tolerances for linear and angular dimensions, flatness, straightness, and parallelism for welded structures, where no individual tolerances are indicated on the drawing . and Parallelism Tolerances

±15 minutes (approx. ±4.5 mm per meter) Over 1000 mm: ±10 minutes (approx. ±3 mm per meter) Class F: Straightness, Flatness, and Parallelism Tolerances