Q355NHB steel is quality grade B of Q355NH weather-resistant steel sheet What is the difference between the element composition and tensile requirement of weather-resistant steel plate Q355NHB compared to A588 steel plate?
Q355NH weathering steel features
Q355NHB weathering steel plate characteristics: It has the characteristics of high-quality steel such as toughness, plastic extension, forming, welding and cutting, abrasion, high temperature and fatigue. Q355NHB steel plate is atmospheric corrosion-resistant steel plate, also known as weather-resistant steel plate. It is a low alloy steel series between general steel and stainless steel. Weather-resistant steel is made of ordinary carbon steel with a few corrosion-resistant elements such as copper and nickel. Toughness, plastic extension, forming, welding and cutting, abrasion, high temperature, fatigue resistance, etc.
Delivery status: controlled rolling, hot rolling, normalizing rolling, normalizing, etc. (skill conditions can be added according to the working environment of the steel plate during the production of fixed rolling)
Q355NH various grade steel levels of impact temperature
Q355NHA does not do impact
Q355NHB Impact temperature 20 ° C
Q355NHC Impact temperature 0 ° C
Q355NHD Shock temperature -20 ° C
Q355NHE Shock temperature -40 ° C
Q355NHB steel chemical composition
C: 0.16; Si: 0.50; Mn: 0.50-1.00; P0.030; S0.030; Cu: 0.25-0.55; Cr: 040-0.80; Ni0.65
Q355NHB mechanical properties
Yield strength: 325; tensile strength: 490-630; elongation: 21
For the application of Q355HNB sheet: Q355HNB steel sheet and coils are mainly used for steel structures such as railways, vehicles, bridges and towers that are exposed to the atmosphere for a long time. Weathering steel is mainly used in the production of structural parts such as containers, railway vehicles, oil derricks, seaport construction, oil production channels and containers containing hydrogen sulfide corrosion media in chemical petroleum equipment.
Tags: Q355GNH, Q310GNH
