A EN13674-4 é uma norma europeia que especifica os requisitos para trilhos de aço usados em sistemas de vias férreas. Esta norma abrange as especificações técnicas para trilhos de aço de fundo plano com um peso nominal que varia de 27 kg/m até 46 kg/m, e aplica-se a trilhos feitos de aço laminado.
A norma EN13674-4 inclui vários parâmetros, como dimensões do trilho, propriedades mecânicas, composição química, e outras características de qualidade. It also specifies the testing procedures that need to be followed to ensure the rails meet the required standards.
EN13674-4 helps ensure that steel rails used in railway track systems are manufactured to a consistent standard, which helps improve safety, fiabilidade, and performance of railway operations.
The EN13674-4 standard covers the technical requirements for flat-bottomed steel rails. These rails have a symmetrical cross-section with a flat base and two sloping sides.
Além disso, the standard defines the rail profile dimensions, which include the head width, altura, e espessura, as well as the foot width and depth. It also specifies the tolerances for these dimensions and other quality characteristics such as straightness, acabamento superficial, and internal soundness.
EN13674-4 standard specifies the technical requirements for flat-bottomed steel rails used in railway track systems. Here are some of the key specifications covered by this standard:
- Rail dimensions: The standard defines the nominal weights of the rails, which range from 27 kg/m até 46 kg/m. It also specifies the rail profile dimensions, including the head width, altura, e espessura, as well as the foot width and depth.
- Propriedades mecânicas: The standard sets out the minimum values for various mechanical properties of the rails, como a resistência ao escoamento, Resistência à tração, elongação, e dureza. These properties help ensure that the rails can withstand the loads and stresses imposed by train traffic.
- Composição química: The standard specifies the maximum limits for various chemical elements in the steel used to manufacture the rails, como o carbono, silício, manganésio, enxofre, e fósforo. These limits help ensure that the steel has the desired properties for rail applications.
- Quality characteristics: The standard includes requirements for various quality characteristics of the rails, such as straightness, acabamento superficial, and internal soundness. These characteristics help ensure that the rails meet the necessary standards for safety, fiabilidade, e desempenho.
- Testing procedures: The standard specifies the testing procedures that need to be followed to evaluate the rails’ compliance with the required specifications. These tests include visual inspection, dimensional measurements, mechanical testing, and non-destructive testing.
EN13674-4 standard for flat-bottomed steel rails is primarily used in European countries for railway track systems. The rails manufactured in accordance with this standard are commonly used in various applications.
In addition to Europe, some other countries around the world also use the EN13674-4 standard for their rail systems.
EN13674-4 standard is an important reference for the design, fabricar, and maintenance of steel rails used in railway track systems, and it helps ensure that these systems operate safely and efficiently.
Bem-vindo a perguntar-nos o padrão internacional de trilhos de fundo plano como abaixo:
