1. Explanation of the brand name of Q235NHA
"Q" refers to the first letter of the Chinese Pinyin of the word "Qu" which refers to the yield strength
"235" refers to the yield strength value of 235MPa
"N" is the first letter of the Chinese Pinyin of the word "Nai"
"H" is the first letter of the Chinese Pinyin of the word "Hou"
"A" Refers to the quality level
2. Q235NHA is read as: Q235 Weathering A. Also known as: Atmospheric corrosion-resistant hot continuous rolled steel, also known as Corten steel and corrosion-resistant steel, is between ordinary steel and stainless steel. low alloy steel. It is one of the cutting-edge steel types in the world’s super steel technology.
Mainly used in containers, power plant chimneys, etc. It is a common weather-resistant board that can be used in harsh environments and has a long service life.
It has a protective rust layer and is resistant to atmospheric corrosion. It can be used to manufacture low-alloy structural steel for vehicles, bridges, towers, containers and other steel structures. Compared with ordinary carbon steel, weathering steel has better corrosion resistance in the atmosphere.
Compared with stainless steel, weathering steel only contains trace amounts of alloying elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium, etc. The total amount of alloying elements only accounts for a few percent, not Like stainless steel, it reaches more than ten percent, so the price is lower.
3. Characteristics of Q235NHA:
It is rust-resistant, making components resistant to corrosion, prolonging their life, thinning and reducing consumption, and saving labor and energy. Used in harsh environments, long service life. It has a protective rust layer and is resistant to atmospheric corrosion. It can be used to manufacture low-alloy structural steel for vehicles, bridges, towers, containers and other steel structures. Compared with ordinary carbon steel, weathering steel has better corrosion resistance in the atmosphere. Compared with stainless steel, weathering steel only contains trace amounts of alloying elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium, etc. The total amount of alloying elements only accounts for a few percent, unlike stainless steel, which reaches 100%. More than a dozen, so the price is lower.
4. Weather-resistant steel plates are used in:
3.1. High-performance weather-resistant steel and refractory steel can reduce the maintenance costs of steel structures and solve the fire and anti-corrosion problems of exposed unprotected steel structures. Provides new solutions, such as high-voltage electricity towers
3.2. The production and installation process of fire-resistant and weather-resistant steel is basically the same as that of conventional steel, and the design method is also the same as that of ordinary steel structures, but more tests are needed to verify< /p>
3.3. High-strength weather-resistant steel has been widely used in bridge engineering, and design theories and methods need to be studied. 4. Fire-resistant weather-resistant steel can also be used in floor decking
5. Weather-resistant steel plates Production process:
Weather-resistant steel generally adopts processes such as feeding fine materials into the furnace, smelting (converter, electric furnace, micro-alloying, argon blowing, LF low superheat continuous casting (feeding rare earth wire), controlled rolling and controlled cooling, etc. Route. During smelting, scrap steel is added into the furnace along with the charge, and is smelted according to conventional processes. After tapping, deoxidizer and alloy are added. After the molten steel is treated with argon blowing, it is cast immediately. The molten steel after being tempered by argon blowing is continuously cast. Machine-cast into slabs. Due to the addition of rare earth elements to the steel, the weathering steel is purified and the inclusion content is greatly reduced.
6. Widely used in: containers, power plant chimneys, railway engineering and other outdoor steel, such as Steel for large outdoor sculptures, weathering steel (i.e., atmospheric corrosion-resistant steel) is a low-alloy steel series that is cheap and high-quality between ordinary steel and stainless steel. It can be sustainable after incorporating new mechanisms, new technologies and new processes in modern metallurgy. Development and innovation, it is one of the series of steel types at the forefront of the world's super steel technology.
We also provide forging blanks and CNC precision machining services for our clients, covering industries such as energy, petrochemicals, steel, engineering machinery, plastics, prevention and control, hydraulics, healthcare, and food. Please feel free to send us drawings for inquiries.
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