S420NL carbon steel material strength parameters
We are a professional steel raw material supplier with a history of 17 years. After years of development, the company's steel plates and coils are widely used in construction, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and other fields around the world. With good product quality, we have solid project cooperation with foreign governments or leading enterprises such as Egypt, Bangladesh, Myanmar, Thailand, Philippines, Vietnam, Venezuela, Peru, Mexico, the United States, Portugal, Russia, Iran, Iraq, Pakistan, etc.
The weathering steel plates are our main products, which are also called weather resistant steel plates, corten steel plates, atmosphere corrosion resistant steel plate, anti-corrosion plates, etc. The main recognized standards for weathering steel plates are ASTM CORTEN, ASTM A588/A588M, ASME SA588/SA588M, EN 10025-5, EN 10155, TBT 1979, GBT 4171, JIS G 3114, JIS G3125, ASTM A242/A242M, etc. Our typical weathering steel grades are Corten A, A588 grade B, S355J2WP, S355J0WP, 09CuPCrNi-A, 05CuPCrNi, Q355NH, SPA-H, A242 type 1, etc.
The company's headquarters has a well-established logistics distribution system, which can quickly transport the steel materials to the port through the contracted logistics companies. Professional contracted logistics companies can significantly reduce costs and various commodity-related expenses. Meanwhile, the flexible transfer ensures that the steel materials can be shipped immediately after passing the quality inspection.
S420NL carbon steel material,S355J2 steel plate rolling process is controlled rolling process. In the rolling process, the ingot rolling temperature is 1000-1050℃; in the first stage, the low-speed and large reduction rolling process is adopted, the high-temperature stage is 950-1000℃, the rolling speed is 1.6-2.0m/s, the single reduction rate is 15-20%, and the cumulative reduction rate is 40-45%, so as to ensure sufficient deformation of ingot. In the first stage, the start rolling temperature is 910-930℃, and the finish rolling temperature is ≤ 870℃.S420NL carbon steel material
"The production method of seamless steel pipe can be roughly divided into cross rolling method (menesmann method) and extrusion method. The cross rolling method (menesmann method) is to pierce the tube blank with the cross roll first, and then extend it with the rolling mill. This method is fast in production, but requires high machinability of tube blank. It is mainly suitable for producing carbon steel and low alloy steel tube.The extrusion method is to pierce the billet or ingot with a piercer, and then extrude it into a steel tube with an extruder. This method is less efficient than the cross rolling method and is suitable for the production of high-strength alloy steel tubes."
S420NL carbon steel material,Over the years, the company has strived for perfection, being well-received. By virtue of stable product performance, high-quality engineering effects and perfect service system, we have won the trust of many customers, and our engineering cases and after-sales service systems are spread all over the world. We regularly conduct quality tracking and return visits by phone and email, listen to customers' opinions, and continuously improve service quality.
Lopes, President of the Brazilian Iron and Steel Association, pointed out that at present, increasing steel exports would be the best choice for Brazilian steel producers. The Association has made a series of proposals to the Brazilian government to support the economic recovery. Lopes revealed that the Association is seeking to increase the export tax rebate proportion of the steel industry from the current 0.1% to 5%, which will give related products a price advantage of 7% when exporting, and the export volume is expected to increase by 20%.
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