Standard: GB/T 4171-2008
Material:
Q355NHCategory: weldable atmospheric corrosion-resistant steel, weldable weather-resistant steel
Q355NHC steel is weldable atmospheric corrosion-resistant steel(weather-resistant) sheet. It is a low alloy steel series between ordinary steel and stainless steel. Weather-resistant steel sheet is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. Toughness, ductility, forming, welding, abrasion, high temperature, fatigue resistance and other characteristics; weather resistance is 2 to 8 times that of ordinary carbon steel, and paintability is 1.5 to 10 times that of ordinary carbon steel. At the same time, it has the characteristics of rust resistance, corrosion resistance and life extension, thinning and consumption reduction, labor saving and energy saving.
Mechanical properties of Q355NHC steel sheet
Yield strength(MPa): ≥325; Tensile strength (MPa): between 490-630; Elongation %: ≥21
Q355NHC steel impact test
Impact temperature: 0 ° C
Shock absorption energy: ≥ 34KV₂/J
Delivery status of Q355NHC steel plate
Delivery status: hot rolling, controlled rolling, normalizing. The delivery status can be selected according to different needs, and can also be attached to the requirements of flaw detection standards, flaw detection level requirements, Z-direction performance requirements, classification society certification requirements, and the addition of special alloy elements. However, it needs to be communicated by both the supplier and the buyer, and be noted in the contract.
Q355NHC weldable steel sheets are mainly used for steel structures such as railways, vehicles, bridges and towers that are exposed to the atmosphere for a long time. It is used to manufacture containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, and containers containing hydrogen sulfide corrosive media in chemical oil equipment.
