Welcome to BBN High Strength Steels Factory
Over the years, the company has trained a number of professional sales talents, enriched the concept of various marketing and customer service, and strengthened the business strength of the company. Now the company's business S690QL1 material equivalent department, marketing department and information department constitute the market development network; the finance department, personnel department, logistics department, shipping department, document department and S690QL1 material equivalent after-sales service department constitute the service customer network.
BBN STEEL is an agreement direct selling agent of Wuyang Iron and Steel Company, which mainly deals in medium and extra wide and extra thick steel plates. There are more than 8,000 tons of steel S690QL1 material equivalent plates of various specifications for customers to choose. The company's steel plate processing plant can cut semi-finished products and special-shaped parts according to user requirements, and can also transport on behalf of office roads, railways and shipping.
Q215 steel has good plasticity and weldability. Q235 steel has certain strength, plasticity, toughness and weldability. Q235 steel is easy to punch and can meet the use of steel structure. Q255 steel has high strength, good plasticity and weldability, and its application is not as extensive as Q235 steel. Q275 steel has high strength, poor plasticity and weldability. Q275 steel is used for shafts, connecting rods, gears, keys and metal components with high strength requirements.
Quenching is a heat treatment process in which steel parts are heated to above the critical temperature, and after proper heat preservation, the parts are quickly cooled to room temperature in water or oil, so that martensite transformation occurs. The hardness of the quenched S690QL1 material equivalent increases sharply. Quenching is to prepare the organization for adjusting and improving the performance of S690QL1 material equivalent during tempering, while tempering determines the performance and life of the workpiece.
Chemical composition differences between the S690QL1 material equivalent, Q345 steel grades (Q345A / Q345B / Q345C / Q345D / Q345E):Q345A steel:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035; Q345B steel:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035; Q345C steel:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.030,Al≥0.015; Q345D steel:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.025,Al≥0.015; Q345E steel:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.025,S≤0.020,Al≥0.015; All the Q345 steel grades contain Nb≤0.07,V≤0.15,Ti≤0.20,Cr≤0.30,Ni≤0.012,Mo≤0.10。
From the order to the delivery, there are three quality inspections to ensure that the qualified rate of finished products is more than 100%. We promise that every order will be tracked in a timely manner to ensure that customers can receive goods safely and constantly listen to their opinions and suggestions, reflect on our own problems, and let customers feel at ease. We have a large warehouse in Shanghai and Tianjin, which can provide customers with sufficient sources of supply.
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