09CuPCrNi-B chemical composition reliable supplier

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the 09CUPCRNI-B chemical composition 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 09CUPCRNI-B chemical composition quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

Phosphorus is a very harmful element in 09CUPCRNI-B chemical composition steel. With the increase of phosphorus content, the strength, flexion ratio and hardness of 09CUPCRNI-B chemical composition steel increased, but the plasticity and toughness decreased significantly. In particular, the lower the temperature, the greater the impact on plasticity and toughness, increase the cold brittleness of steel.

According to the latest statistics of alacero, the consumption of finished steel 09CUPCRNI-B chemical composition products in Latin America in 2019 was 64.2 million tons, down 5% from 67.6 million tons in 2018. The decline in steel consumption in the region reflects the economic contraction of Latin American countries, especially the three major economies: Mexico, Argentina and Brazil.

After adding trace elements such as phosphorus, copper, chromium, and nickel to Q355NH steel, a dense and highly adherent protective film is formed on the surface of the weathering steel, which prevents rust from spreading and developing, and protects the substrate under the rust layer to slow its corrosion . An amorphous spinel oxide layer of about 50 μm to 100 μm thick formed between the rust layer and the substrate is dense and has good adhesion to the base metal, which greatly improves the atmospheric corrosion resistance of the steel material, 09CUPCRNI-B chemical composition.