Stainless Steel Expansion Spring Tension Extension Expanding Springs 0.4mm Wire
Description:
 
Extension Springs（Tension Spring）
 
Material： A2 304 Stainless Steel
 
Wire Diameter：0.4mm
 
Outer Diameter：3mm,4mm
 
Inner Diameter：2.2mm,3.2mm
 
Inner Diameter=Outer Diameter- （2 x Wire Diameter）
 
The Length includes the Loop
 
Notice：
 
1. Due to manual measurement, The range of positive and negative tolerance error is 0.05 mm.
 
2. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image.
 
One expansion spring in various sizes for different applications. Please select size and quantity you need. 
 
Spring's diameter is an outside measurement (OD) unless stated otherwise. Length is measured from one end of the spring to the another in its natural state (not being compressed or expanded) including hooks for expansion spring. Material is Stainless Steel unless stated otherwise.
 
Application scope:
Daily necessities, various lighting fixtures, electrical switches, electric vehicles, fitness equipment, office equipment, various toys, etc...
 
A2 stainless is commonly referred to as 304 or 18/8 because it contains 18% chromium and 8% nickel. A2 is an austenitic stainless steel and is almost non magnetic but will still stick lightly to a magnet due to the cold working process. A2-70 is the most commonly used grade, the 70 represents a tensile strength of 700N/mm2.
 
A2 is suitable for a wide range of applications in alot of different industries such as the automotive industry in applications such as body panelling and bumpers etc, the food industry and catering due to its ease of cleaning and corrosion resistance, also commonly used in the engineering industry and architecture, A2 is also favoured by the remote control and model making enthusiasts. Also a favourite for many different DIY jobs in and around the home and garage for those jobs where a standard BZP fastener will not do.
 
In general A2-70 is ideal for a whole range of uses where a good finish is needed on an interior or exterior applications.
 
Characteristics of stainless steel springs:
The material of stainless steel springs gives them excellent corrosion resistance and can maintain good performance in chemically aggressive media.
 
Corrosion resistance: Stainless steel springs have excellent corrosion resistance due to their material characteristics, and can resist the erosion of most corrosive media, including acid, alkali, salt, etc. This allows stainless steel springs to maintain stable performance in humid and corrosive environments, extending their service life.
 
Application environment: Due to the corrosion resistance of stainless steel springs, they are particularly suitable for environments that require corrosion resistance, such as marine environments, chemical industries, etc. In contrast, ordinary springs may rapidly corrode in these harsh environments, leading to performance degradation or even failure.
     
   
 
Package include: 
 
 
According to your choice.
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●About the product colour:Because of the different light and environment when the product is photographed, In a few instances the colour of the product may have a little colour difference with the actual colour of the product, I hope you can understand.
 

On 13/11/2024 at 21:33:56 AEDT, seller added the following information:

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