
The company adheres to the "variety, quality and efficiency" road. We have established a technology center, a brand cultivation management system and a quality control system. Now the company has formed an independent innovation system integrating A387 grade 11 class 2 pressure vessel steel sheet production, learning, research and marketing. Our company has passed ISO9001 quality management system certification and ISO10012 measurement management system certification.
Generally, in the process of selecting A387 grade 11 class 2 pressure vessel steel sheet, automobile steel plate manufacturers, the most important thing is to look at the appearance and thickness of automobile steel plates produced by manufacturers. Generally, the appearance of good A387 grade 11 class 2 pressure vessel steel sheet, automobile steel products is relatively fine, there are no obvious defects on the surface of automobile steel plate, and the thickness of automobile steel plate is within the specified range value. These are very important factors to measure the production capacity of the manufacturer and the quality of automobile steel plate products.
The mechanical properties of 20MnV steel are as follows: tensile strength 785 MPa, yield strength 590 MPa, elongation after fracture 10%, reduction of area 40%, impact absorption energy 55 J. A387 grade 11 class 2 pressure vessel steel sheet, 20MnV steel has good properties, good strength, toughness and plasticity, good hardenability and machinability. After carburizing, 20MnV steel can be directly quenched without secondary quenching to improve the core structure. The weldability of 20MnV steel is good, but there is temper brittleness at 300-360 ℃ during heat treatment.
Quenching Improve the hardness of A387 grade 11 class 2 pressure vessel steel sheet steel, Annealing is refine the grain size, homogenization, reduce hardness, improve the plasticity and eliminate interna stress. Normalizing refine grain , improve the impact toughness of A387 grade 11 class 2 pressure vessel steel sheet steel and comprehensive mechanical properties.
ASTM A537 class 1 boiler plate is pressure vessel steel. A387 grade 11 class 2 pressure vessel steel sheet, A537 class 1 boiler plate chemical elements include C, Si, Mn, P, S, Mo, Ni, etc. Among them, the carbon content is 0.24 max., Si content is 0.13-0.55%, Mn content is 0.92-1.72%, the max. contents for both P and S are 0.035%, the Mo content is 0.09% max, and the Ni content is 0.38% max. A537 class 1 boiler plate properties: A537 class 1 boiler plate tensile strength is 450-585 MPa, min. yield strength is 310 MPa, and min. elongation in 2 in.(50mm) is 18%.
First of all, we should establish a correct concept of after-sales service. Service concept is an important part of corporate culture and a long-term enterprise value concept. Our company's after-sales service embodies the concept of "customer first, sincere service for customers". As long as we are in the "sincere service for users" under the guidance of the idea, I believe we will get rich returns.
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