The marking method of using stainless steel washers usually follows certain specifications and standards to ensure the accuracy of their selection and use. The following are specific marking methods:

1. Basic marking elements

1）Material：

The material of stainless steel washers is usually represented by a combination of numbers and letters, such as 304, 316, etc. These numbers and letters represent the composition and performance characteristics of stainless steel. When marking, the material grade should be clearly indicated, such as "304 stainless steel" or "SUS304".
2) Specifications：
The specifications include dimensional parameters such as outer diameter, inner diameter, and thickness. These parameters are typically expressed in millimeters (mm) or inches (in), depending on industry standards or customer requirements. When marking, these dimensional parameters should be listed in the order of "outer diameter/inner diameter/thickness" and separated by "/", for example "Φ 60/Φ 40/2mm".
3) Shape：
The shape of stainless steel washers may vary depending on the application, but it is usually not particularly emphasized in the labeling as its main function is to provide elasticity and sealing. However, if it is necessary to distinguish between different types of washers (such as flat washers, corrugated washers, and spring washers), a specific suffix can be added after the model to indicate it, such as "- S" for spring washers.
4) Surface treatment：

Surface treatment has a significant impact on the corrosion resistance and appearance of stainless steel spring washers. Common surface treatment methods include polishing, sandblasting, galvanizing, etc. When marking, if specific surface treatment is carried out, corresponding letters or symbols should be added after the model to indicate, such as "- P" for polishing, "- S" for sandblasting, etc.

• 
  

2. Comprehensive Marking Example

An example of a complete stainless steel washer marking may be as follows:

Mark: "304 stainless steel Φ60/Φ40/2mm－P"

Explanation: This mark represents a washer made of 304 stainless steel, with an outer diameter of 60mm, an inner diameter of 40mm, a thickness of 2mm, and a polished surface.

3. Precautions

1) Adhere to standards: When marking stainless steel washers, relevant industry standards and specifications should be followed as much as possible to ensure the accuracy and consistency of the marking.

2) Clear and concise: The markings should be clear and concise for easy identification and reference. Avoid using vague or ambiguous marking methods.
3) Meet requirements: The marked content should meet actual usage needs, including requirements for material, specifications, shape, and surface treatment.

All in all, the marking method using stainless steel washers is a process involving multiple elements, which requires comprehensive consideration of factors such as material, specifications, shape, and surface treatment. By following relevant standards and specifications, the accuracy and consistency of markings can be ensured, thereby meeting practical usage needs.