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Stainless steel disc springs

Stainless steel disc springsare tapered elastic elements made from high-performance stainless steels such as 301, 304, 316, and 17-7PH. They perfectly combine the geometric advantages of disc springs, such as high space utilization and strong load-bearing capacity, with the excellent properties of stainless steel, such as corrosion resistance, non-magnetic/weakly magnetic properties, resistance to high and low temperatures, and hygiene and safety.

We specialize in providing stainless steel disc spring solutions that balance performance, corrosion resistance, and cost. Whether you need to withstand humid atmospheres and chemical media, or meet the requirements of cleanrooms, food contact environments, or low electromagnetic environments, we can provide you with reliable products ranging from standard series to highly customized solutions through scientific material selection and precision manufacturing.

Product Parameters

project	Core parameters
Outer diameter range	3mm – 500mm(Non-standard customization is supported).
Core materials	Austenitic stainless steel series: •304 stainless steel: General purpose, with good corrosion resistance, formability and overall performance, suitable for most environments. •316/L stainless steel: Due to its molybdenum content,it has significantly better resistance to acid, alkali and chloride pitting corrosion than 304, making it suitable for harsher environments such as chemical and marine applications. •301 stainless steel : Higher strength and elasticitycan be obtained through work hardening , making it suitable for high stress and high fatigue scenarios.
Key features	Excellent corrosion resistance: Resistant to moisture, various chemicals and atmospheric corrosion, with a long service life. Stable mechanical properties: Stable performance over a wide temperature range of -200°C to +300°C (depending on the material), with good resistance to relaxation. Non-magnetic/weakly magnetic: meets the application requirements of medical devices, precision instruments and other applications that are sensitive to magnetic field interference. Hygiene and Safety: The surface is smooth, non-toxic and pollution-free, and can meet food or medical grade cleanliness requirements through electrolytic polishing and other treatments.
Surfacetreatment	Passivation(standard),electropolishing(enhancing cleanliness and corrosion resistance),vibratory grinding(finishing), etc.

Product Advantages

1. Scientific selection of corrosion-resistant materials in a gradient

We offer a clear selection logic: for general rust prevention and decorative applications, 304 is the economical choice; for environments with acids, alkalis, or salt spray, 316 is a more reliable option; for higher strength, 301 or 17-7PH can be selected. We help you find the optimal balance between cost and protection level, avoiding over- or under-performance.

2. Manufacturing processes designed for cleanliness and safety

We understand the specific requirements of the food and pharmaceutical industries. Through precision stamping, deburring, and electropolishing, we can provide disc springs with a bright surface, easy cleaning, and resistance to bacterial adhesion. A rigorous cleaning and packaging process ensures that products meet cleanroom standards upon delivery.

3. Reliable, long-life, and stable design

Stainless steel itself has excellent corrosion and fatigue resistance. Through precise force verification and heat treatment control, we optimize the stress distribution of disc springs, enabling them to maintain stable elasticity under long-term alternating loads, avoiding premature failure due to localized corrosion or fatigue, and ensuring long-term maintenance-free operation of the equipment.

Typical Application Scenarios

Stainless steel disc springs, with their unique combination of properties, are ideal for the following applications:

Application areas	Typical equipment and its functions	Core requirements	Recommended materials
Food, pharmaceutical and packaging machinery	Filling valves, food pump seals, and pharmaceutical equipment clamping mechanisms	Corrosion resistant, easy to clean, hygienic and safe, and pollution-free.	316 (electropolished)
Medical devices and analytical instruments	Precision adjustment and buffering of medical imaging equipment, surgical instruments, and analytical instruments	Non-magnetic, resistant to disinfectant corrosion, and highly reliable.	304 / 316
Marine engineering and ship equipment	Marine valves, seawater pumps, and offshore platform measuring instruments	Salt spray resistant and marine atmospheric corrosion resistant	316
Chemical and General Industries	Compensation and buffering for chemical pipeline valves, metering pumps, and textile machinery.	Resistance to mild and chemical corrosion	304 / 316
Electronics and Semiconductors	Precision fixtures, semiconductor manufacturing equipment components	Non-magnetic, clean, rust-proof	304 (High-purity treatment)

Design Support and Selection Recommendations

Stainless steel disc springs are generally a better choice than ordinary spring steel when your application faces any of the following requirements:

•The working environment is humid, contains moisture, or contains mild chemical substances.

The equipment needs to be cleaned, disinfected, or kept in a clean environment regularly.

•The application scenarios have strict limitations on magnetism and require the use of non-magnetic or weakly magnetic components.

•The product has requirements for appearance or durability against discoloration.

We are not only a product supplier, but also your material application consultant. If you have any questions about material selection, surface treatment, or the usage environment, please provide specific operating conditions, and our technical team will provide you with professional selection advice.

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