304 Etching Stainless Steel sheet

Product Information

Product information

Stats	Detailed information
Product name	Etching stainless steel plate
material	304, 316, 430 stainless steel
thickness	0.1mm-5.0mm (customizable)
breadth	100mm-2000mm (customizable)
Length	500mm-6000mm (customizable)
Surface treatment	Etching pattern, mirror, drawing, sandblasting, etc
Etched pattern	Geometric patterns, flowers, text, logo, etc. (support customization)
colour	Natural, black, gold, rose gold, etc. (can be electroplated or PVD coloring on demand)
Application field	Building decoration, elevator decoration, home appliance panel, crafts, signage, etc
Corrosion resistance	High (suitable for indoor and outdoor environments)
Heat resistance	Excellent (can withstand high temperature environment)
processability	Cutting, bending, welding, stamping, etc
Packing method	Packed in wooden cases or wooden frames, moisture-proof and shock-proof
Delivery time	7-15 days (depending on order quantity and custom requirements)
Minimum order quantity	1 ton (support small batch sample order)
Certification standard	ISO 9001, SGS, RoHS, etc
Export market	Europe, North America, Southeast Asia, the Middle East and other global markets
Price clause	FOB, CIF, EXW, etc
Payment method	T/T, L/C, Alipay, etc
After-sales service	Provide technical support and quality assurance, support return and exchange

Production process of etched stainless steel plate
1. Material preparation
Before etching, the appropriate stainless steel sheet needs to be selected. Commonly used stainless steel materials are 304, 316, etc., according to the actual use to choose different materials and thickness of stainless steel plate. The surface of the material should be smooth, without obvious scratches or stains, to ensure uniform etching effect.
2. Clean the surface
Before etching, the surface of the stainless steel plate must be thoroughly cleaned. The purpose of cleaning is to remove oil, dust or other impurities to ensure that the subsequent coating of corrosion resistance can be firmly adhered to. The surface is usually treated with a chemical cleaning agent or alcohol, rinsed with deionized water and left to dry.
3. Apply corrosion resistance
Corrosion resistant layer is the key material to protect the surface of stainless steel from corrosion. Commonly used corrosion resistant materials include photosensitive coatings or special corrosion resistant films. According to the design requirements, the corrosion resistance layer is evenly coated on the surface of the stainless steel plate, and ensure that it is completely covered. After coating, it is necessary to undergo curing treatment so that the corrosion resistance layer is firmly attached to the stainless steel plate.
4. Pattern exposure and development
The designed pattern is transferred to the resist layer by exposure technology. The specific method is to print the design pattern on a transparent film, and then through ultraviolet exposure to cure the corrosion resistance layer according to the shape of the pattern. After the exposure is complete, the developer removes the uncured resist layer, leaving areas that need to be etched.
5. Chemical etching
The treated stainless steel plate is put into the etching solution for corrosion. Commonly used etching fluids are chemical solutions containing acidic or alkaline components, such as ferric chloride solution or nitric acid solution. During etching, the solution gradually corrodes the exposed stainless steel surface, forming a dented pattern or texture. Etching depth can be adjusted according to time and solution concentration.
6. Clean and remove the resist layer
After the etching is complete, the stainless steel plate needs to be removed from the etching solution and thoroughly cleaned with water or neutralizing solution to remove the remaining chemicals. The resist layer is then removed by solvent or heating to reveal the final patterned effect.
7. Surface treatment
According to customer requirements, the etched stainless steel plate is further processed, such as polishing, drawing, sandblasting or electroplating. These treatments can enhance the aesthetic and corrosion resistance of the product.
8. Inspection and packaging
Finally, the quality of the finished product is inspected to ensure that the pattern is clear, the depth is uniform, and the surface is free of defects. Qualified products are packaged and delivered to customers.

Main chemical composition
1. Iron (Fe)
Iron is the matrix element of stainless steel, usually accounting for more than 50% of the total mass of stainless steel. Iron provides the basic strength and toughness of stainless steel.
2. Chromium (Cr)
Chromium is the key element that determines the corrosion resistance of stainless steel, and its content is usually between 10.5% and 30%. Chromium can form a dense chromium oxide protective film on the surface of stainless steel, thereby preventing further oxidation and corrosion.
3. Nickel (Ni)
Nickel is an element that enhances the corrosion resistance and toughness of stainless steel and is usually contained in between 8% and 20%. Nickel can also improve the stability of stainless steel at high temperatures, making it suitable for a wider range of environments.
4. Carbon (C)
Carbon is an important element that affects the hardness of stainless steel, but its content is usually low, generally between 0.03% and 0.1%. Excessive carbon content may lead to intergranular corrosion, so in some high-demand stainless steels, the carbon content is strictly controlled.
5. Molybdenum (Mo)
Molybdenum is an element that further enhances the resistance of stainless steel to pitting and crevices corrosion, and its content is usually between 0.2% and 3%. Molybdenum is particularly important in the Marine environment or in the chemical industry.
6. Manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), etc
The content of these elements in stainless steel is low, but it also has a certain impact on its performance. For example, manganese and silicon can improve the strength of stainless steel, while phosphorus and sulfur need to be strictly controlled to avoid reducing the toughness of the material.
Effect of chemical composition on etching process
In the etching process, the chemical composition of stainless steel directly affects the reaction speed and effect of the etching liquid on the surface of the material. For example:
1. Chromium content
The higher the chromium content, the more stable the oxide film on the surface of the stainless steel, which will make the etching fluid more difficult to penetrate, thus slowing the etching speed. Therefore, when selecting the etching fluid, it is necessary to adjust the formula for stainless steel with high chromium content to improve the etching efficiency.
2. Nickel content
Stainless steel with a higher nickel content has greater corrosion resistance, but may also cause an uneven reaction during etching. Therefore, when processing high-nickel stainless steel, it is necessary to control the etching time and concentration more precisely.
3. Carbon content
Stainless steel with a lower carbon content is more suitable for etching fine patterns, because the low carbon content reduces the risk of intergranular corrosion, thus ensuring the clarity of the pattern edges.

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