Welcome to Henan BBN Steel

  • zhengzhou
    henan ,China
  • Opening Time
    Mon - Sat: 08.00 to 18.00
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The company adheres to the service concept of "you give the order to me and I leave the satisfaction to you". Over the years, our S420ML material specification steel products are supplied in time, with reliable quality and perfect and thoughtful after-sales service. Meanwhile, we have huge S420ML material specification steel stocks all the year round. The company long-term pursues the principle of quality first, customer first, quality for survival, reputation for development, and perfect service to win the users.

30CrNi3MoV (675) high-strength steel is a new type of high-strength steel newly developed and put into use in China. It is a steel plate for armored vehicles. 30CrNi3MoV steel is developed by V microalloying on the basis of the original Cr-Ni-Mo series low-alloy ultra-high-strength steel, and appropriately adjusting the content of other alloying elements. The milling performance of 30CrNi3MoV steel is poor.

Bridge steel plates are thick steel plates made of carbon steel and low-alloy steel for bridge construction. The main applications of bridge steel plates are to build railway bridges, highway bridges, and sea-crossing bridges. The bridge steel plates are required to have high strength, durability and bear the load and impact of rolling stock. Bridge steel plates have good water resistance, low thermal conductivity, flat and lubricated surface. The main grades of bridge steel plates are A709 grade 50, A588 grade B, S420ML material specification and so on.

After adding a small amount of niobium, vanadium and titanium to S420ML material specification etc. steel, it is combined with the controlled rolling process to control the precipitation behavior of microalloying elements to achieve the purpose of improving the comprehensive properties of the steel, whether it is strength, toughness, ductile-brittle transition temperature, or Steel's process formability, welding performance, corrosion resistance and crack resistance have been significantly improved, while reducing production costs. Such steel products are widely used in oil and gas pipelines, vehicles, building structures, oil production platforms, pressure vessels, ship shells and many other fields.

"A573 Grade 70 steel chemical composition(%)Carbon max. 0.28: Manganese: 0.85-1.20Phosphorus Max.: 0.03Sulfur Max.: 0.03Silicon: 0.15-0.40S420ML material specification, A573 Grade 70 steel mechanical propertiesTensile strength min. MPa: 290Yield strength min. MPa: 485Elongation % min. in 200mm : 18Elongation % min. in 50mm : 21"

We are committed to providing customers with high-quality services, high-precision products and efficient solutions. If you have any demand for S420ML material specification steel plate, steel pipe and other products, please contact us directly. We are willing to provide you with relevant product knowledge and specific specifications for free. Welcome to purchase.

It is very important for a company to have a sound after-sales service system, which better guarantees the interests of customers and increases the reliability of the company's products in the hearts of customers. Our company has a dedicated after-sales service team and good after-sales service reputation, and has been recognized by customers over the past decades. Whenever there is problem about our S420ML material specification steel materials during application on the user site, our after-sales service persons will assist to find solutions at the first time.

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