The iron oxide defects on the surface of Q235NH weathering steel

For Q235NH weathering steel, stainless steel buyers, the most troublesome issue is the fluctuating stainless steel price trend. For manufacturers who purchase in large quantities, even if the price of stainless steel fluctuates in a little, the price cost incurred after the batch is very large. So, what factors affect the trend of stainless steel prices? By analyzing these price trends, it is obvious that we can grasp the market price of stainless steel.

The company adheres to the people-oriented concept and takes "learning, sharing, gratitude, integrity, respect and responsibility" as the enterprise values. Advanced equipment, scientific standardized management, strict quality assurance system and high-quality team are the core competitiveness of the company. The company will continue to provide customers with Q235NH weathering steel high-quality, timely and perfect steel products and services under the guidance of the mission of "striving for perfection to meet customer needs".

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the Q235NH weathering steel quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After Q235NH weathering steel quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

The effect of nitrogen on steel performance is similar to that of carbon and phosphorus. With the increase of Q235NH weathering steel nitrogen content, the strength of steel can be improved, plasticity especially toughness can be significantly reduced, weldability becomes worse, and cold brittleness is intensified. Nitrogen with aluminum, niobium, vanadium and other elements can reduce its adverse effects, improve the performance of Q235NH weathering steel steel, can be used as an alloying element of low alloy steel.

The after-sales service department will pay return visit to each customer by call or email, report problems found during the return visit in time, and discuss with the production and quality inspection center to propose effective solutions and follow up in a timely manner, so as to ensure the benefits each customer are fully guaranteed, and to provide customers with more value-added services.