Q415NH atmospheric corrosion resistant steel what is the mild steel?

As a leading steel supplier of raw material, BBN steel company is committed to serving the majority of manufacturing, ships building, construction, power plant, oil storage, and mining companies. With a good reputation, perfect sales network and thoughtful after-sales service, customers have spread to more than 70 parts of the world.

Steel is the main raw material for shipbuilding and marine engineering structure construction, accounting for 20% ~ 30% of the construction cost of hull and marine engineering. The steel Q415NH atmospheric corrosion resistant steel products involved mainly include steel plates and section steel (marine bulb flat steel, H-beam, angle steel, etc.), casting and forging steel and supporting welding materials, etc. Among them, the amount of steel consumed for hull construction accounts for about 60% of the total ship mass, and sheet metal accounts for about 88%.

The difference between cold rolled steel sheet and hot rolled steel plate. The carbon content of Q415NH atmospheric corrosion resistant steel, hot rolled steel plate is slightly higher than that of cold rolled steel sheet. In the case of little difference in composition, the density of cold rolled steel sheet and hot rolled steel plate is the same. Hot rolled steel plate has characteristics of low hardness, easy processing and good ductility. Cold rolled steel sheet has high hardness, and it is relatively difficult for processing. But it is not easy to deform and has high strength. Hot rolled steel plate can be made into alloy steel plate by adding other elements, and its properties are also excellent compared with other high-quality steel plates.

Stainless steel plate and other plates are like smelting, refining, casting, rolling, hot rolling and cold rolling is the final process steps in the manufacture of stainless steel. At present most of the world's Q415NH atmospheric corrosion resistant steel stainless steel factory use the AOD furnace furnace ldpe-g-nvp stainless steel production, its production accounted for about 70% of the world's stainless steel output, a VOD furnace a converter three-step method is used to produce stainless steel, its production accounted for about 20% of the world's Q415NH atmospheric corrosion resistant steel stainless steel production, production of stainless steel with other methods, its production accounted for about 10% of the world's production of stainless steel.

"A204 Grade C steel chemical composition(%)Carbon max.: 0.28 Manganese max.: 0.90Phosphorus Max.: 0.025Sulfur Max.: 0.025Silicon: 0.15-0.40Molybdenum: 0.45–0.60Q415NH atmospheric corrosion resistant steel, A204 Grade C steel mechanical propertiesFor boiler steel plate A204 Grade C, the yield strength shall be above 295 Mpa, tensile strength from 515 Mpa to 655 Mpa."

We are known as Q415NH atmospheric corrosion resistant steel leading manufacturers, suppliers and exporters in the market all over the world. We engage in providing a wide range of plates which are accurately mass produced by using the best quality of parts which gives maximum durability and dependability. The most important thing to know as a potential customer of IRON&STEEL is that we Q415NH atmospheric corrosion resistant steel stock, processing service, and distribute all of the popular grades of carbon steel plate, alloy steel, shipbuilding steel and boiler steel. Welcome to come China and visit our factory.

We have a professional after-sales service team, the company has developed a clear service process and service standards, after-sales service team members strictly perform after-sales procedures, comply with service standards. The most important thing is that we have set up the correct concept of after-sales service, "customer first, sincere service for users".