What is Weathering Resistant Steel For Outdoor Screen Design?
Weather-resistant steel curtain wall is a new type of high weather-resistant composite plate, widely used in power plants, mines and other enterprises. At present, this kind of steel plate sold in the market adopts the new process of automatic metal arc surfacing, forming a hypereutectic high chromium alloy weather-resistant layer on the entire Q235 (St.37.2) steel plate, thus making the weather-resistant red steel curtain wall we see now.
Features of weathering steel curtain wall:
1. Excellent weather resistance
The chemical composition of the alloy weathering layer contains 4~5% carbon and 25~35% chromium. The volume fraction of Cr7C3 carbide in its metallographic structure reaches more than 50%, the macro hardness is HRC56~62, and the hardness of chromium carbide is HV1400~1800. Because the carbides are distributed vertically in the wear direction, even compared with the cast alloys with the same composition and hardness, the weatherability is more than doubled.
2. Good impact resistance:
The base plate of weathering steel curtain wall is low carbon steel or low alloy. Tough materials such as stainless steel reflect the advantages of bimetallic materials. The weathering layer resists the wear of wear media, and the substrate bears the load of the media, so it has good impact resistance. It can withstand the impact and wear of high drop hopper in the material conveying system.
3. Good heat resistance:
The alloy weathering layer is recommended to be used under the working condition of ≤ 600 ℃. If vanadium, molybdenum and other alloys are added into the alloy weathering layer, it can withstand the high temperature wear of ≤ 950 ℃.
The recommended operating temperature is as follows:
The weather resistant steel curtain wall is recommended to be used at a temperature not higher than 530 ℃;
The base plate of low-alloy weathering steel curtain wall (15CrMo, 12Cr1MOV, etc.) is recommended not to be used at 580 ℃;
The heat-resistant stainless steel substrate is recommended to be used under the working condition not higher than 800 ℃.
4. Good corrosion resistance
The alloy layer of the weathering steel curtain wall contains a high percentage of metal chromium, so it has certain rust and corrosion resistance. It can prevent coal sticking when used in coal chute and funnel.
Weathering steel plate landscape production line
KUAIMA steel company has more than ten years of experience in diversified operations and multi-product transactions, involving round bar, ship plate, seamless pipe,weathering steel plate landscape,plate, coil, wire, bright bar, pipe fittings and a wide range of carbon steel, alloy steel And more product sizes of stainless steel materials, these products we produce meet national and international quality standards, such as ASTM, ASME, DIN, JIS, ISO, etc. The company has 25 production lines for various products, with an annual output of 500,000 tons, and is committed to Provide high-quality steel products and provide supporting services and solutions for global customers. Welcome to KUAIMA steel company.
Use of weathering steel
Due to its excellent corrosion resistance, weathering steel has been widely used in steel structures such as buildings, vehicles, bridges, towers, etc. There are three main ways to use weathering steel: bare use, coating use and rust layer stabilization.
1. Exposed use:
The most common use of weathering steel is exposed. Generally, after 3 to 10 years, the rust layer on the surface of weathering steel gradually stabilizes, the corrosion development slows down, and the appearance is beautiful chocolate color.
Because the stabilization process of the rust layer of the weathering steel is affected by the chemical composition of the steel, the use environment, the stagnant water and dust in the structural details, and the mechanical wear and other conditions, if improperly used, the formation conditions of the stable rust layer will be damaged, and the weathering steel will also produce serious corrosion.
2. Application of coating:
In many departments such as buildings, bridges, vehicles, etc., weathering steel, like ordinary steel, is mostly used for coating. Compared with ordinary steel, the coated weathering steel shows excellent corrosion resistance. However, due to the increased use cost and operation process, it is difficult to apply coating to large components generally.
3. Use after stabilization:
At the beginning, a treatment is carried out on the surface of the components to shorten the formation process of the stable rust layer of the weathering steel, which can not only avoid the phenomenon of yellow rust liquid sagging in the initial use of the weathering steel, prevent pollution, but also form a stable rust layer. Although the exposed use is an economic and unique use method of the weathering steel, it takes a long time to complete the stabilization process of the rust layer in the natural environment, Before the formation of stable rust layer, the early rust liquid sagging and scattering often pollute the surrounding environment.
Weathering Steel Application industry
Weathering Steel are mainly used in chemical, petrochemical, marine engineering, seawater pipelines, seawater desalination and other industries, nuclear engineering, paper and pulp industry
oil and gas
Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.
energy
Kuaima Steel serves the entire service cycle of power generation and synchronous activities in design, construction, repair and maintenance.
construction
Kuaima Steel provides comprehensive products and services for infrastructure, bridges, pipelines, etc.
marine
Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.
Weathering steel plate landscape application industry
Weathering steel plates are mainly used in chemical, petrochemical, marine engineering, seawater pipelines, seawater desalination and other industries, nuclear engineering, paper and pulp industry
oil and gas
Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.
energy
Kuaima Steel serves the entire service cycle of power generation and synchronous activities in design, construction, repair and maintenance.
construction
Kuaima Steel provides comprehensive products and services for infrastructure, bridges, pipelines, etc.
marine
Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.
We supply and export weathering steel plate landscape in following countries
Malaysia, United Arab Emirates, Indonesia, Saudi Arabia, Iran, Qatar, India, China, United Kingdom, Singapore, Canada, Thailand, Korea, Turkey, Philippines, Egypt, Germany, Italy, Japan, Russia, Vietnam, Australia, South Africa , Portugal, Morocco, Costa Rica, Kazakhstan, Netherlands, Mexico, Brazil, France, Spain, Nigeria, Bangladesh, Kuwait, Iraq, Ukraine, Poland, Jordan, Romania, Oman, Hong Kong, Venezuela, Colombia, Norway, Chile, Te Trinidad and Tobago, Greece, Czech Republic, Belgium, Sri Lanka, Cyprus, Angola, Myanmar (Burma), United Kingdom, Canada, Korea, Thailand, Netherlands, Spain, Turkey, Australia, Mexico, Pakistan, Vietnam, Brazil, Philippines, France, Taiwan, Poland, South Africa, Russia, Nigeria, Kuwait, Czech Republic, Norway, Romania, Egypt, Oman, Sweden, Belgium, Hong Kong, Israel, Colombia, Switzerland, Denmark, Finland, Argentina, Venezuela, Peru, Ukraine , Chile, Bangladesh, Portugal, Ireland, Austria, Algeria, Greece, Iraq, New Zealand, Slovakia, Hungary, Kazakhstan, Slovenia, Lithuania, Serbia, Sri Lanka, Bahrain, Bulgaria, Morocco, Tunisia, Croatia, Jordan, Ecuador, Te Trinidad and Tobago, Estonia, Azerbaijan, Ghana, Lebanon, Cyprus, Dominican Republic, Latvia, Libya, Costa Rica, Cambodia, Macedonia (FYROM), Belarus, Jamaica, Palestine, Turkmenistan Belarus, Jamaica, Palestine, Turkmenistan Belarus, Jamaica, Palestine, Turkmenistan and other countries
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