Effect of grain size on yield strength ratio of JIS SM520B plates

The company has five major departments: steel plate production department (including quality inspection team), sales department, market development department, after-sales and logistics department, and finance department. The backbone of steel business from all over the country, with the chairman as the core, integrates self-confidence, independence, passion and responsibility, and strives for excellence! All people share the same belief: "Being a refined steel product line rewards customers, strengthen the steel industry, and realize the corporate dream!

For the selection of JIS SM520B plates, automobile steel plate products and manufacturers, we should not only check the material processing quality, but also check how the actual installation and use effect are. The comfort, bearing capacity and other indicators of the auto made of the automobile steel plates should also be considered. In addition, in choosing JIS SM520B plates, automobile steel plate manufacturers and products, it is better to find a few more companies to compare, and conclude to choose a more suitable automobile steel plate manufacturer.

Forging method is to use forging hammer, precision forging machine, fast forging machine or hydraulic press to forge ingot into steel, billet or forging blank. Forging is the earliest JIS SM520B plates processing method. Forging is divided into free forging and model forging. Forging method can obtain the finished steel with better mechanical properties and shapes that are not easy or impossible to obtain JIS SM520B plates by rolling method.

"A573 Grade 70 steel chemical composition(%)Carbon max. 0.28: Manganese: 0.85-1.20Phosphorus Max.: 0.03Sulfur Max.: 0.03Silicon: 0.15-0.40JIS SM520B plates, A573 Grade 70 steel mechanical propertiesTensile strength min. MPa: 290Yield strength min. MPa: 485Elongation % min. in 200mm : 18Elongation % min. in 50mm : 21"

BBN Steel Company adheres to the marketing concept of "first-class technology, first-class steel quality, and first-class logistics services". It is our goal to build high-quality carbon steel JIS SM520B plates, alloy steel plates and high-strength structural steel plate international-class boutique bases. Our logistic team will make customs clearance documents, track products production process, and update shipping information for customers. Creating value for customers is our pursuit.

There is a silo technology R&D center in our company with many experts. Our technical backbones go abroad to study advanced technologies regularly to make our technology and products leading in the world. We provide our customers with JIS SM520B plates high-quality steel plates, the excellent quality from specialty. With good reputation, high-quality products, strong strength, and low prices, we welcome the clients from the world to come to visit our factory.