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General technical requirements for pipeline steel plate

General technical requirements for pipeline steel plate

Pipeline steel plate is a low-carbon or ultra-low-carbon microalloyed steel, which is a product with high technical content and high added value. The current development trend of pipeline engineering is large pipe diameter, high pressure rich gas transportation, high cold and corrosive service environment,and thicker submarine pipelines.Therefore,the current performance requirements for pipeline steel plate mainly include the following aspects:

1. High strength: the strength indicators of pipeline steel plate mainly include tensile strength and yield strength.

2. High impact toughness: pipeline steel plate requires materials with sufficiently high impact toughness. For the base material, when the toughness value of the material meets the requirements of crack arrest, its toughness can generally meet the requirements of preventing cracking.

3. Low ductile brittle transition temperature: severe geographical and climatic conditions require pipeline steel plate to have a sufficiently low ductile brittle transition temperature.

4. Good welding performance: the good weldability of pipeline steel plate is essential to ensure the integrity of the pipeline and the quality of field welding.

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