Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for SA573 Grade 65 structural steel specification various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several SA573 Grade 65 structural steel specification after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.
Compared with SA573 Grade 65 structural steel specification, pressure vessel and boiler steel plates have such advantages: The pressure vessel and boiler steel should be pure, and the fracture structure of the boiler steel plate should be uniform without cracks and inclusions. Besides, the strain aging sensitivity is small, and the strain aging impact value of the pressure vessel and boiler steel plate is required to be no less than 50% of the non-aging impact value. That is why pressure vessel and boiler steel plate is first choice for fabricating pressure vessels and boilers, while SA573 Grade 65 structural steel specification is not.
Hardness comparison between Q345B steel and NM450 steel: wear resistant steel for construction machinery requires high wear resistance, high toughness, impact resistance, easy welding, easy forming and other high-performance characteristics. The main index of wear resistance is the surface hardness. The higher the hardness, the better the wear resistance. Compared with SA573 Grade 65 structural steel specification, Q345B steel, the hardness of NM450 steel is only increased 3 times, but the average service life is increased 6-8 times under the same working conditions.
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