Imagine a steel wire, light as a feather, as fine as silk - diameter of only 0.01 mm (equivalent to 1/10 of the thickness of A4 paper), almost invisible to the naked eye, but can withstand a high temperature of 1000 ℃ of the baking without losing toughness.This is not a science fiction setting, but the Shougang Jitai'an company developed the "silk steel" - a high-performance ferrochrome-aluminum electric heating alloy fiber materials.It is not only the "industrial blade" for China to break the international technology blockade, but also the "flexible carrier" for cross-border art creation, and it has become the key driver of green technology in the era of "double carbon".

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Ⅰ.Technological breakthroughs: from a "stuck in the neck" to a global leader

1.The ultimate challenge of ultra-fine craftsmanship

The birth of silk steel is considered the pinnacle of metallurgical craftsmanship:

Alloy design: Iron, chromium, aluminum as the core elements, precise control of the composition ratio, to ensure that the high temperature generates dense aluminum oxide protective layer, antioxidant capacity of 3 times higher than ordinary materials.

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Extreme Manufacturing: The 15cm diameter ingot is melted at 1600℃, and then through the patented drawing technology of Gitane, after dozens of processes, the material diameter is finally compressed to 0.01mm, and the surface roughness is controlled to ≤0.2μm.

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Performance index: resistivity 1.45 Ω-mm²/m, tensile strength 750 N/mm², maximum working temperature up to 1400 ℃ (oxidizing atmosphere), to fill the domestic high-end metal fiber field blank.

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2.The "Chinese Solution" to Break International Monopolies

Swedish enterprises had a long-term monopoly on the global electric heating alloy market, similar imported materials priced at up to 560,000 yuan / ton.The industrialization of silk steel not only compresses the cost to 150,000 yuan/ton, but also forces the price of imported products to be "cut down".810 Nowadays, Gitane has occupied more than 80% of the domestic high-end market share, and jumped to the second place in the field of global electric heating alloys, and has become the "China's Smart Manufacturing".The benchmark of "China's smart manufacturing".

Ⅱ.the application scene: from industrial hardcore to life aesthetics

1.The "invisible champions" of green energy

Clean Heating: Provided 200 tons of silk steel for the Zhangjiakou Competition Area of the Beijing Winter Olympics, and built the world's largest electric heat storage system, realizing zero-carbon heating for 1.5 million square meters of buildings, with a thermal efficiency of 98%.

New energy manufacturing: applied to heat treatment furnace for photovoltaic wafers and hydrogen energy storage tank heating system, helping to increase solar cell efficiency by 15%.

Environmental technology: as the core material of carbon particle trap filter for diesel vehicles, reducing NOx emissions by 40%.

2.Cross-border symbiosis of art and technology

Shougang's cultural and creative team created a new category of "steel embroidery" using silk steel as a medium:

Craft revolution: blending silk steel with traditional embroidery threads to develop "steel embroidery cloth" that can be embroidered, creating works such as "Shougang Ski Jump" and "Dunhuang Flying Sky".

Cultural Symbol: In the WTT and WTT International Tournament, the silk steel cultural and creative products made a stunning appearance with the "contrast between rigidity and flexibility", which was praised as a "work of art that can't be burned".

Ⅲ.The rise of the brand: from "small giants" to world-class enterprises

1.A Century of Innovative Genes

The predecessor of Gitane is Beijing Steel Wire Factory, which was established in 1956 to break through the Soviet Union's technological blockade.From the development of ferrochromium-aluminum alloy from scratch to the mass production of 1400℃ material in 2020, its development history is the epitome of China's industrial self-reliance.810 The spirit of "Enhancement of the country" originated from "Enhancement of the country's light" named by Chairman Zhu De, which has inspired several generations.It has inspired several generations of engineers to overcome more than 200 technical difficulties.

2.The way forward ——listing and globalization

Capital planning: plan to be listed by the end of 2025, the target market value exceeds 10 billion, to create a "national team" in the field of electric heating alloy.

Technology foresight: R&D of new products such as "super electric heating alloy", exploration of the application of silk steel in radiation protection clothing, precision sensors and other fields.

The Poetry of Steel and the Future

The story of silk steel is a symphony of hardcore technology and flexible aesthetics, and epitomizes China's manufacturing from "follow" to "lead".It lets us see:

"True innovation lies not only in the breakthrough of material performance, but also in the redefinition of the boundaries of 'steel' - not only to support the industrial spine, but also to weave the soul of art."

When this wire, as thin as a hair, connects the zero-carbon heating of the Winter Olympics, the cultural symbols of international events, and even the green future of thousands of households, we may better understand: the temperature of science and technology has never been more than laboratory figures, but how to make the world become softer and more sustainable.