Which steel grade is equivalent to 09cuptire-a grade tbt

The steel plate used for containers and pressure vessel has to bear different pressures and strengths due to the manufactured containers. The normal pressure is generally 31.4MPa or higher; the working temperature is usually between -20 ℃ -450 ℃, and sometimes lower than -20 ℃. According to the working conditions and processing technology of the container, the 09CUPTIRE-A grade tbt, steel plate used for the container must have good cold bending and welding performance. Besides, it should have good plasticity and toughness, high temperature short-term strength or long-term strength performance.

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Rolling of steel plates is the core of the entire steel rolling production process. The billet is deformed by rolling. The rolling process plays a decisive role in product quality. The quality requirements of rolled 09CUPTIRE-A grade tbt products include the three aspects of product geometry and dimensional accuracy, internal organization and performance, and product finish. Finishing: It is the last process in the 09CUPTIRE-A grade tbt rolling process, and it is also a more complicated process. It plays a final role in guaranteeing the quality of the product.

Phosphorus is a very harmful element in 09CUPTIRE-A grade tbt steel. With the increase of phosphorus content, the strength, flexion ratio and hardness of 09CUPTIRE-A grade tbt steel increased, but the plasticity and toughness decreased significantly. In particular, the lower the temperature, the greater the impact on plasticity and toughness, increase the cold brittleness of steel.

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