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Stainless steel history


Stainless steel history


The Chinese ethnic group is the first country in the world to iron and steelmaking. Our ancestors mastered some techniques of ironmaking, steelmaking, casting and forging, and heat treatment as far back as 3000 years ago, 1,700 years earlier than in other European countries, Human progress has made an important contribution. Steel has become the most basic and important material for modern industrial and agricultural production, transportation, national defense and even people's livelihood. At present, although a great deal of new types of inorganic materials and organic synthetic materials have been developed. But in terms of production costs, a wide range of performance and other aspects, they are far from replacing steel. Therefore, the production capacity of steel is still one of the important indicators for measuring the national strength of a country. The reason why steel has been so widely used because of iron ore deposits, large reserves, mining, smelting more economical, semi-finished steel products cold and heat deformation ability. Finished products have excellent mechanical properties (strength, plasticity and impact resistance) and processability (cutting, welding, cold deformation, etc.). However, compared with silicic acid, macromolecule synthetic materials and some non-ferrous metals, its biggest drawback is that: in the atmosphere or acid, alkali, salt and other media conditions, easy to lose weight loss due to corrosion, or even completely destroyed .

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