316L Stainless Steel: The Secret of the Corrosion Terminator

In the precise world of chemical pipelines and surgical instruments, 316L stainless steel has become a legend in the materials field with its "indestructible body". Compared with ordinary 304 stainless steel, its core advantage lies in the addition of 2-3% molybdenum, which forms a dense oxide film to resist chloride ion corrosion. In salt spray tests, its service life is increased by more than five times.
The three major battlefields demonstrate their extraordinary might
Maritime Hegemony: The bolt flanges of the Qingdao Cross-Sea Bridge are made of 316L material, which remains rust-free for 10 years in salty and humid air, with a pitting corrosion equivalent PREN value as high as 26.3 (only 19 for 304).
Medical no-go zone: The orthopedic implants at Peking Union Medical College Hospital are made of 316L, and after electrolytic polishing, the surface roughness is less than 0.1μm, eliminating the risk of bacterial growth
Food safety: The steam valves of coffee machines in Starbucks stores worldwide have all been upgraded to 316L and remain as clean and shiny as new after 30 acetic acid immersion tests per day
The support of technology is even more extreme
The latest laser nanosizing technology developed by Shanghai Zhenhua Heavy Industries has enabled the grain size of 316L to reach ASTM grade 12, and its corrosion rate in the extreme environment of the South China Sea oil platform is only 0.002mm per year. The kitchen knife brand "Tuopai" has further enhanced the acid and alkali resistance of its 316L kitchen knife by 40% through deep cryogenic treatment at -196℃.
Choosing 316L means choosing the ultimate solution to fight against time.

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