Stainless Steel Washer

The Xiaoguo® Stainless Steel Washer in the inventory will protect the surface of the workpiece during use, preventing the coating from being damaged due to rotation and friction during the operation, thus ensuring the finished appearance quality of industrial equipment.

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Product Description

The structural characteristics of the Stainless Steel Washer are reflected in every aspect, from the material grade to the manufacturing process, and even to the surface treatment.

（1）Basic form

The structure is simple. The Stainless Steel Washer is a flat circular ring with a central hole. The inner diameter, outer diameter and thickness are all manufactured strictly in accordance with international standards. It is used to provide a smooth and flat contact surface between the fastened component and the connected part.

（2）The properties of stainless steel

The main materials used are SUS 304 (A2) and the more corrosion-resistant SUS 316 (A4) stainless steel. The core standard for the mechanical performance grade is the Vickers hardness (HV).

（3）Manufacturing process and surface treatment

The core process is cold rolling; the next step is stamping, which is carried out using high-speed stamping dies for mass production; after stamping, the edges will be ground, polished or chemically deburred; some high-strength ones will undergo heat treatment (quenching + tempering), or electroplating (zinc/nickel) to prevent rust. Stainless Steel Washer are usually passivated before leaving the factory to enhance their corrosion resistance.

Mon	φ 16	φ 18	φ20	φ22	φ24	φ27	φ30	φ33	φ36	φ39	φ42
d max	17.27	19.33	21.33	23.33	25.33	28.33	31.39	34.62	37.62	42.62	45.62
d min	17	19	21	23	25	28	31	34	37	42	45
dc max	30	34	37	39	44	50	56	60	66	72	78
dec min	29.48	33.38	36.38	38.38	43.38	49.38	55.26	58.8	64.8	70.8	76.8
h max	3.3	3.3	3.3	3.3	4.3	4.3	4.3	5.6	5.6	6.6	9
h min	2.7	2.7	2.7	2.7	3.7	3.7	3.7	4.4	4.4	5.4	7

Usage scenario

Stainless Steel Washer have an extremely wide range of applications. Their core advantages lie in their excellent corrosion resistance, high strength and high temperature resistance.

（1）Architecture and Engineering

In outdoor or humid environments such as exterior walls, steel structures, and curtain walls, ensure the stability and durability of metal and wooden structures. Also used for fixing insulation boards.

（2）Automobiles and Transportation

Key components widely used in systems such as engines and chassis are assembled to withstand high pressure and intense vibrations, ensuring safety.

（3）Industrial and General Machinery

Used for connection and load distribution of various industrial machinery, automation equipment, hydraulic systems, heavy equipment, etc.

（4）Energy and Power

Applied to wind and solar power plants as well as oil drilling sites in harsh environments.

（5）Marine Engineering and Shipbuilding

Used for manufacturing ships, yachts, and coastal equipment, etc., to resist seawater corrosion and meet the anti-corrosion requirements.

（6）Food and Medicine

Used in key parts of equipment for food processing, dairy products, beverages, pharmaceuticals, etc., to ensure hygiene and safety during the production process.

（7）Chemical Engineering and Petroleum

Stainless Steel Washer are used in critical parts of oil refining and chemical equipment to resist corrosion from various chemicals and ensure production safety.