Serve Huayue Nickel-Cobalt Wet process Project Castle Peak medium and heavy Plate to successfully complete the delivery of the largest single Duplex stainless Steel S22053 in China

SMM News: Huayue Nickel-Cobalt Project, as a leader in the hydrometallurgical industry of laterite nickel ore in the world, introduces the world's advanced (HPAL) process and auxiliary technology for high-pressure acid leaching of laterite nickel ore, which has the advantages of short process and low energy consumption. In response to the national initiative, Huayue Nickel and Cobalt Co., Ltd. has actively opened up overseas markets and laid out several large-scale nickel smelting projects in Indonesia, with a single investment of nearly 10 billion yuan. Among them, the Morowali wet process project, currently under construction, is located in the Castle Peak Industrial Park in central Sulawesi, Indonesia, which will be launched in the second half of 2018 and is expected to be put into production in 2021. After the project is put into production, it has the ability to produce 60,000 tons of nickel metal per year, and the product will be mainly used in the cathode material of new energy automobile battery, and the market application prospect is broad.

Jiangsu Qingruida stainless Steel Co., Ltd. as a Qingshan stainless steel medium and thick plate franchise platform company, under the guidance of Qingshan Industrial "dare to be the first" corporate culture, innovate the production control mode of the medium and heavy plate industry, overcome the influence of the domestic epidemic situation, and steadily enter the market in 2020, filling the gap of Qingshan stainless steel plate. The company's operation philosophy is customer-centered and adheres to "first-class quality and satisfactory price". Recently, Qingtuo brand stainless steel plate successfully completed the delivery of the largest dual-phase stainless steel S22053 plate in China, totaling more than 2000 tons. The specification thickness is from 10mm to 30mm, and the average width is more than 2000mm.

Duplex stainless steel was born in the United States in the 1940s, which means that ferrite and austenite account for about 50% each, and stainless steel with at least 30% content of less phase is generally required. In the case of low C content, the Cr content is 18%, 28%, and the Ni content is 3%, 10%. This kind of steel has the characteristics of both austenitic and Ferritic stainless steel. compared with ferrite, this kind of steel has higher plasticity, toughness, no room temperature brittleness, intergranular corrosion resistance and weldability compared with austenitic stainless steel. the strength is high and the resistance to intergranular corrosion and chloride stress corrosion is obviously improved. Because its main feature is that the yield strength can reach 400-550MPa, which is twice as high as that of ordinary stainless steel, it can save materials and reduce the cost of equipment manufacturing. In terms of corrosion resistance, especially under the condition of relatively bad medium environment (such as seawater, high content of chloride ion), duplex stainless steel has better resistance to pitting, crevice corrosion, stress corrosion and corrosion fatigue than ordinary austenitic stainless steel. it can be comparable with high alloy austenitic stainless steel. The production of stainless steel dual-phase steel plate is difficult, the surface defect rate is high, and the grinding proportion is high, which mainly depends on manual grinding.

Since taking on the Huayue project, the company has made it the top priority of the current work and went all out to promote it. The close coordination of steelmaking, rolling and logistics departments has been obtained. During this period, it overcame the influence of many unfavorable factors, such as tight construction period, heavy task, great pressure, severe epidemic prevention and control situation, gathered all the staff, strictly controlled the product quality and construction period, and went through strict production control. Finally, a satisfactory answer paper was handed in for the users. Customers spoke highly of the company's all-round service and 24-hour response.

"build ten thousand green hills and refine stainless steel for a hundred years", we sincerely welcome stainless steel plate customers and friends in the upstream and downstream of the industry to order and cooperate to create a green future.