304 stainless steel foil

Today, industrial production demands increasingly stringent material performance requirements, and 304 stainless steel foil, a high-quality austenitic stainless steel sheet, has long been a necessity in high-end fields such as electronics, medical, and new energy thanks to its superior properties. Its excellent corrosion resistance, ease of processing, and stable physical properties have won widespread favor across various industries—one of the core reasons why Ningbo Qihong is deeply committed to this type of material.

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Product Description

Our 304 stainless steel foil is made from high-quality 304 stainless steel (commonly known as 18/8 stainless steel) using advanced production equipment, and is manufactured through multiple cold rolling, bright annealing, and precision slitting processes.

Its key information and outstanding features can be clearly summarized in a table

Core Parameters	Detailed Description	Advantages and Highlights
Material Composition	Austenitic stainless steel containing 18% chromium and 8% nickel	Ensuring excellent corrosion resistance from the source
Thickness Range	As thin as 0.01mm, flexible specifications	Suitable for various precision structural machining needs
Temperature Range	Stable operation from -196℃ to 800℃, with even higher short-term temperature resistance	Can withstand high and low temperature environments, wide range of applications
Surface Condition	No oxide scale, no burrs, low roughness	Meets high cleanliness and high-precision bonding requirements
Special Properties	Non-magnetic/weakly magnetic in the annealed state, with good electrical and thermal conductivity	Suitable for magnetically sensitive devices, meeting electrical conductivity and heat dissipation requirements

Product Applications

Simply describing its performance isn't enough to give you a clear picture. Leveraging our expertise in stainless steel materials, this 304 stainless steel foil plays a crucial role in numerous high-tech fields. Let's discuss some specifics:

In the new energy sector, it's an excellent material for lithium-ion battery tabs and fuel cell bipolar plates. Using it as a connector in energy storage devices improves both conductivity and safety. In the electronics and semiconductor industries, it's indispensable for critical components like the shielding layer of flexible circuit boards and sensor substrates, significantly enhancing the equipment's anti-interference capabilities.

In the medical field, it offers even greater peace of mind. It's the perfect choice for minimally invasive surgical instruments and implantable device packaging, fully meeting biocompatibility standards. In the aerospace and automotive industries, where reliability requirements are extremely high, it's used in high-temperature seals and sensor diaphragms, ensuring stable operation even in extreme environments. Furthermore, it's essential for high-precision control and long-term stable operation in the bellows of precision instruments and the filters of environmental protection equipment.

Let's also discuss its practical benefits. In lithium batteries, it effectively reduces internal resistance, extending battery cycle life; in medical equipment, it's non-toxic and corrosion-resistant, ensuring exceptional safety for long-term use; in electronic devices, it significantly improves electromagnetic shielding and signal stability. Furthermore, its high dimensional accuracy and consistency result in low scrap rates during automated production, naturally increasing efficiency.

304 stainless steel foil is inherently high-performance and highly reliable, making it an ideal choice for upgrading high-end manufacturing. Ningbo Qihong, as a professional supplier specializing in precision stainless steel strip and sheet, adheres to the principle of "survival through quality, development through reputation." Our 304 stainless steel foil is not only highly precise and clean, but its thickness, width, and surface treatment can also be fully customized to meet specific needs.