What is the difference between alloy steel and 05CuPCrNi steel density

On November 9, 2020, the World Trade Organization (WTO) Safeguards Committee issued the Safeguards Investigation Circular submitted to it by the South African delegation on November 6, 2020. South Africa’s International Trade Management Committee makes decisions on the import of steel structure products including U, I, H, L and T Sections of Iron or Non-alloy Steel (U, I, H, L and T Sections of Iron or Non-alloy Steel). The safeguard measure is a negative preliminary ruling, and it is recommended to terminate the safeguard measure investigation in this case and not implement the safeguard measure.Weathering steel plate refers to the low alloy structural steel with protective rust layer and atmospheric corrosion resistance, which can be used to manufacture steel structures such as vehicles, bridges, towers, containers, etc. Compared with 05CUPCRNI steel density, ordinary carbon steel, weathering steel has better corrosion resistance in the atmosphere Compared with stainless steel, weathering steel has only a small amount of alloy elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium and so on The total amount of alloy elements only accounts for a few percent, instead of more than 10 percent as stainless steel, so the weathering steel price is relatively low,05CUPCRNI steel density., SS400 steel is one of the most commonly used hot rolled general structural steel. SS400 steel’s mechanical properties is yield strength more than 225-235MPa, tensile strength 360-510Mpa and 340-470Mpa. For SS400 steel, the C element content is 0.2% max, the Mn element content is 1.40% max, the P element content is 0.045% max, the S element content is 0.045% max.The company attaches great importance to the cultivation of team spirit. Personal strength is weak. After sales service departments, leaders and subordinates often communicate with each other. Everyone often holds meetings to discuss their problems in after-sales service, discuss technical difficulties, discuss how to improve work efficiency, how to better deal with user complaints, etc.