This standard is critical for structural engineers, welding coordinators, and site supervisors because a failure in a load-bearing rebar weld can lead to catastrophic structural collapse.
sets forth technical requirements for materials, design, production, and testing for load-bearing welded joints between reinforcing steel bars (and other steel components) in both shop and site applications.
Only qualified welders and operators who hold certification for the specific processes used (e.g., MMA, MAG, Gas) are permitted to weld load-bearing joints. 4. Types of Welded Joints Covered
If you are welding rebar for a bridge, a high-rise building, or a foundation that must bear significant weight, this standard dictates how that weld must be performed, tested, and inspected. en iso 176601 pdf
Unlike non-load-bearing joints (such as tack welds used purely for assembly holding), load-bearing joints are designed to transmit significant structural forces between bars or between bars and other steel components. The Two-Part Structure of ISO 17660
: Permitted welding processes include manual metal arc (111), MAG welding (135), and resistance spot welding (21). The standard provides detailed geometry and preparation requirements for several joint types: Butt joints : Designed for full load-bearing capacity. Lap and Strap joints : Used for overlapping bars. Cross joints : Evaluated based on a "shear factor" ( Sfcap S sub f ) specified in design drawings.
: Overlapping parallel bars joined by longitudinal welds. This standard is critical for structural engineers, welding
For project managers and quality inspectors, verifying compliance with EN ISO 17660-1 involves checking the following items: Requirement under EN ISO 17660-1
In practice, EN ISO 17660 is often cited alongside other standards. For instance, in the European Union, it complements , the standard for steel and aluminum structures, ensuring that welding activities on reinforcing steel meet the required quality levels.
Non-load-bearing joints (covered by ISO 17660-2 ) and mass factory production of mesh/lattice girders. The Two-Part Structure of ISO 17660 : Permitted
welding and flux-cored arc welding (FCAW). Flash welding and resistance butt welding. Friction welding and pressure gas welding. ISO 17660-1:2006 - Welding of reinforcing steel
A: No. The "EN" prefix means the European version. Most countries require the "EN ISO" version, which includes the foreword and national annexes for EU regulations. The technical content is identical to ISO 17660-1.