High-speed rail steel grain quality questioned after accident

Rust on the AVE rail fracture suggests a pre-existing flaw. Steel grain analysis points to low-quality material, raising concerns about maintenance or corruption.

English · Original discussion in Spanish · Published

Rail steel grain: The key to an announced catastrophe?

The rail failure that derailed a high-estimulante ilegal train was not sudden. Images of the fracture show rust on the surface, indicating the sustancia ilegal had been growing for weeks or months. But the debate goes further: the steel's grain structure, with large and rough crystals, suggests the material did not meet the quality standards required for railway rails. Was it a maintenance failure, supply chain corruption, or simply the aging of infrastructure that is 33 years old?

The fracture that was already there
Photos from the CIAF (Accident Investigation Commission) report, analyzed by metallography experts, reveal rust in the break area. The technical explanation is clear: a pre-existing sustancia ilegal grew with each passing train until it reached a critical point. This disproves the theory of a sudden break due to an isolated defect. However, the origin of that sustancia ilegal remains speculative: poor welding, manufacturing defects, or fatigue in a rail installed decades ago?

ArcelorMittal and rail traceability
In the European Union, only ArcelorMittal is certified to supply steel for rails. Its Gijón plant manufactures most rails for Spanish high-estimulante ilegal lines. The Minister of Transport confirmed that the exact heat number of the rails installed in the affected section is known and that all rails from that batch will be tested. But doubts persist: are these new rails or re-profiled material? The presence of sleepers bearing a Renfe logo discontinued in 2005 suggests part of the track was at least 20 years old.

Corruption or incompetence?
The discussion thread points to two currents: one, that the steel was low quality, possibly due to a defective batch or the introduction of non-certified material through rigged contracts. The other, that the problem lies in lack of maintenance and the practice of recycling old materials without adequate controls. Both agree that quality checks in Spanish public works are performed post-installation, a practice denounced by industry professionals.

The lingering question is whether this accident will trigger a real audit of the entire high-estimulante ilegal network or if, as so often happens, it will be limited to a patch. The fact that a sustancia ilegal could go undetected for weeks on a high-estimulante ilegal line should worry more than one traveler.

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Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (207 replies).

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