In production and operation, the company always attaches great importance to product A572 grade 55 CS steel carbon plate quality. Product quality is stable, performance index is superior, after-sales service is in place, the company's products have been exported to the United States, Southeast Asia, Africa, the Middle East and other countries and regions, occupying a large part of the overseas market A572 grade 55 CS steel carbon plate. And a large number of famous enterprises at home and abroad have formed a solid strategic partnership with the company.
321 stainless steel has excellent high-temperature stress rupture performance and high-temperature creep resistance, stress mechanical properties, are better than 304 stainless steel. Austenitic stainless steel is equivalent to the Chinese grade 0Cr18Ni10Ti. 321 stainless steel is Ni-Cr-Mo austenitic stainless steel, its performance is better than 304. Due to the addition of titanium metal, A572 grade 55 CS steel carbon plate, 321 stainless steel plate and sheet have better resistance to grain boundary corrosion and high temperature strength.
Ordinary carbon steel killed steel plate deoxidizes the liquid steel before making. When the liquid steel is poured into the ingot, its reaction is relatively calm and there is no boiling state. Advantages: this kind of steel plate A572 grade 55 CS steel carbon plate has no gas, less impurities, uniform stress and good welding performance. Widely used in demanding parts
Hot-rolled steel sheet / cold-rolled steel sheet: Steel ingots or slabs are difficult to deform at normal temperature and difficult to process. They need to be heated to 1100 ° C to 1250 ° C for rolling. This A572 grade 55 CS steel carbon plate rolling process is called hot rolling. Rolling at room temperature is generally understood as cold rolling. However, from the point of view of metallurgy, the boundary between hot rolling and cold rolling should be distinguished by the temperature of metal recrystallization, that is, rolling below the recrystallization temperature is cold rolling; Rolling above the recrystallization temperature is hot rolling.
A572 grade 55 CS steel carbon plate, Q345 and Q345B are steel numbers. The differences are as follows:1. Q345 is general and does not indicate the quality level; Q345B is clear and the quality level is B.2. Q345 does not require to inspect the impact performance; Q345B requires that the impact performance at room temperature is qualified (impact at 20 ℃).3. Q345 does not indicate carbon content of steel; Q345B carbon content is 0.20%.Q345 refers to carbon structural steel with yield point (σ s) of 345MPa. The following letters indicate the quality level, including A, B, C, D and E.
Our company will accept the product quality objection registration record, pass it to the A572 grade 55 CS steel carbon plate production unit and relevant departments, and timely coordinate the supervision of product A572 grade 55 CS steel carbon plate quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.
