What is Q355GNH weathering and corrosion resistant steel plate?

Q355GNH weather-resistant and corrosion-resistant steel plate is a steel grade between ordinary steel and stainless steel, and belongs to the low-alloy steel series. A small amount of corrosion-resistant elements such as copper and nickel are added to ordinary carbon steel to form weather-resistant steel, which has the characteristics of corrosion resistance, toughness, plastic extension, forming, welding and cutting, high temperature resistance, and fatigue resistance; weather resistance is the second advantage of ordinary carbon steel. to 8 times, and the paintability is 1.5 to 10 times that of ordinary carbon steel. Weathering steel can make the components anti-corrosion, prolong the service life, reduce consumption, save labor and energy, etc.

Q355GNH high weathering steel plate is commonly used to produce parts such as railway vehicles, port engineering construction, marine containers, service platforms of oil production plants, petroleum equipment of chemical plants and vessels containing hydrogen chloride corrosion substances in the original throttle crane. It can also be used to produce steel frame structures that are exposed to the air for a long time, such as towers, railways, highway bridges, cars, etc.


Weathering steel plate 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, 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.

Chemical composition of Q355NH Weathering steel plate

GBt 4171 Steel Plates Chemical Composition
Grade C Si Mn P S Cu Cr Ni
Q265GNH 0.12 0.10-0.40 0.2-0.5 0.07-0.12 0.02 0.20-0.45 0.3-0.65 0.25-0.50
Q295GNH 0.12 0.10-0.40 0.2-0.5 0.07-0.12 0.02 0.25-0.45 0.3-0.65 0.25-0.50
Q310GNH 0.12 0.25-0.75 0.2-0.5 0.07-0.12 0.02 0.20-0.50 0.3-1.25 0.65
Q355GNH 0.12 0.20-0.75 1 0.07-0.15 0.02 0.25-0.55 0.3-1.25 0.65
Q235NH 0.13 0.10-0.40 0.2-0.6 0.03 0.03 0.25-0.55 0.4-0.80 0.65
Q295NH 0.15 0.10-0.50 0.3-1.0 0.03 0.03 0.25-0.55 0.4-0.80 0.65
Q355NH 0.16 0.5 0.5-1.5 0.03 0.03 0.25-0.55 0.4-0.80 0.65
Q415NH 0.12 0.65 1.1 0.025 0.03 0.20-0.55 0.3-1.25 0.12-0.65
Q460NH 0.12 0.65 1.5 0.025 0.03 0.20-0.55 0.3-1.25 0.12-0.65
Q500NH 0.12 0.65 2 0.025 0.03 0.20-0.55 0.3-1.25 0.12-0.65
Q550NH 0.16 0.65 2 0.025 0.03 0.20-0.55 0.3-1.25 0.12-0.65

Mechanical properties of Q355NH Weathering steel plate

GBT4171 Steel Plates Yield Strength (Mpa) Tensile Elongation
Grade Thickness ≤16mm 16-40 40-60 >60mm Strength (Mpa) %
Q235NH ≤100mm 235 225 215 215 360-510 23
Q295NH ≤100mm 295 285 275 255 430-560 22
Q295GNH ≤20mm 295 285 430-560 24
Q355NH ≤100mm 355 345 335 325 490-630 20
Q355GNH ≤20mm 355 345 490-630 22
Q415NH ≤60mm 415 405 395 520-680 20
Q460NH ≤60mm 460 450 440 570-730 19
Q500NH ≤60mm 500 490 480 600-760 15
Q550NH ≤60mm 550 540 530 620-780 15
Q265GNH ≤3.5mm 265 410 27
Q310GNH ≤3.5mm 310 450 26

Product specifications of Q355NH Weathering steel plate

Product NameCorten Sheet plate
Place of OriginChina
Applicationconstruction railway vehicle bridge tower
Alloy Or NotNon-Alloy
Thickness1-200mm or as required
StandardASTM,EN,DIN,ANSI,BS
Length3000-12000mm as required
Techniquehot rolled cold rolled (as custom's request)
Surface TreatmentClean, finishing,blasting cording to customer requirement
Tolerance±1%
Processing ServicesWelding, Punching, Cutting,Decoiling
Invoicingby theoretical weight
Delivery TimeWithin 7-14 days
PackingStandard Packing

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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

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Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.

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Kuaima Steel serves the entire service cycle of power generation and synchronous activities in design, construction, repair and maintenance.

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Kuaima Steel provides comprehensive products and services for infrastructure, bridges, pipelines, etc.

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Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.

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Weathering steel plate 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

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oil and gas

Kuaima Steel provides a complete set of equipment and installations for drilling, transportation and storage in the oil and gas industry.

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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.

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marine

Kuaima Steel is a trusted supplier for subsea to surface operations and shipbuilding operations.

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We supply and export Weathering steel plate 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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