Material Type
Selecting the appropriate materials for application requiresRaleighWe have a good understanding of the common materials used in扁线 products. The correct material can prevent additional costs and malfunctions during operation. Carbon steel is a commonly used material. While stainless steel is more expensive than carbon steel, it offers better corrosion resistance and a wider range of working temperatures.
Carbon Spring Steel
65Mn
SWRH 72A/72B
SAE1070-1090
SAE1070-1090High-carbon tempered spring steel is the standard material for spiral retainers and wave springs. The martensitic structure produced by the oil tempering process significantly enhances the tensile and yield strength of the material.
SAE1060-107
SAE1060-1075High-carbon hard-drawn spring steel is the standard material for snap ring retainers. Hard-drawn carbon steel does not have a grade because its strength is determined by the drawing process.
These carbon steels produced by these tempering processes are suitable for environments with existing protective measures, as they can corrode without lubrication or sealing. Additional corrosion protection can be achieved through special surface treatments. The retaining rings and springs are typically oil-immersed for surface treatment upon delivery to provide protection during transportation and storage on shelves.
•Carbon steel has high magnetic properties and can come in various colors, including blue, black, and gray.
Stainless Steel
302Stainless Steel
302Stainless steel is the standard material used for spiral retainers. This material is widely used due to its combination of corrosion resistance and good physical properties.302The elasticity of stainless steel stems from the cold working process. Although it is non-magnetic stainless steel, it becomes so after cold working.302It will have a slight magnetic property. It cannot be hardened by heat treatment.
•302Silver gray.
316Stainless Steel
316Stainless steel and302The physical properties and heat resistance of stainless steel are almost identical. Due to the presence of molybdenum, it boasts higher corrosion resistance, especially against pitting corrosion.316Stainless steel is commonly used in food, chemical, and seawater applications.
316Magnetic property of stainless steel is less than302Stainless steel. But with302Stainless steel, like the same, its magnetism increases with the cold rolling of the wire.316Stainless steel cannot be hardened through heat treatment.
•316Silver gray.
17-7PHPrecipitation Hardening Stainless Steel
The corrosion resistance of this alloy is302Stainless steel equivalent, but with higher tensile and yield strengths, suitable for special snap ring applications. Resistant to fatigue and under high stress conditions,17-7Its performance is superior to that of high-performance carbon steel.
Its elasticity is achieved by the use ofCCondition settled and hardened toCH900Achieved through status. Therefore, the material can withstand.343℃High temperature resistance without loss of elasticity.17-7PHPrecipitation HardeningCH900The magnetic properties of the stainless steel are similar to those of high-carbon steel.
•After precipitation hardening,17-7Due to the open-air heat treatment, the color appears blue, brown, or silver, while controlled air heat treatment offers bright colors.
Super alloy
InconelX-750
This nickel-chromium alloy is commonly used in high-temperature and corrosive environments. Two commonly used chromium-nickel iron alloys are described as follows. Generally speaking,InconelX-750Through heat treatment, the alloy is processed to achieve spring conditions. Such treated alloys can withstand high371˚CTemperature; Association of Corrosion Engineers(NACE)Permitted to be in compliance with standardsMR-01-75（RC50Products processed through this hard tempering technique (high value) are used for spiral retainers and wave springs./Coiled Springs1Numbered tempering requires a longer heat treatment period than spring tempering, with lower tensile strength, but offers high538˚CTemperature protection.
Spring tempering and1The tempering process can be conducted in an open-air or controlled atmosphere furnace. Open-air heat treatment may result in oxidation, often leading to slight black residue. A controlled atmosphere environment eliminates oxidation issues, ensuring no residue is left on the finished products.
•Retainer washers and springs made of this grade of chromium-nickel iron alloy are blue in color./Silver gray, non-magnetic.
Copper
25Beryllium Copper Alloy
Commonly used in its hardening state, this alloy produces excellent spring characteristics due to the combination of low modulus of elasticity and high ultimate tensile strength. Its physical properties are obtained through precipitation hardening. Compared to other copper alloys, beryllium copper alloys offer high strength and exhibit minimal changes in physical properties with increasing temperature.
•Beryllium copper alloys are non-magnetic. Their conductivity is approximately that of beryllium bronze.2-4Multiple
AGrade Phosphor Bronze
Phosphor bronze offers excellent spring properties and conductivity, slightly inferior in performance to beryllium copper alloys. It is sold in spring temper to maximize spring characteristics.
•Phosphor bronze can only be hardened through cold working. The material also does not possess magnetic properties.
Material Surface Treatment
Turn black
This surface treatment offers a matte black finish. Black oxide is primarily used for aesthetic purposes rather than enhancing corrosion resistance.
Galvanized
Zinc is galvanized over carbon steel to enhance the product's corrosion resistance. Compared to cadmium plating, zinc galvanizing is often used as a more cost-effective and environmentally friendly alternative. Our standard zinc galvanizing solution is:TypeVAndTypeVIAll comply withRoHSCoating thickness is determined by the service condition number (SC(No.) decision, the customer can proceed with this. Galvanizing does not necessarily cover the parts between each spring coil. This process can cause the retaining ring to undergo hydrogen embrittlement.RaleighOffer stainless steel as an alternative choice for cadmium and zinc plating.
Oiled
This isRaleighAll products produced from carbon steel feature standard surface treatment. Oil imparts corrosion resistance during transportation and daily storage. Oil immersion surface treatment should not be considered as a permanent surface treatment.
Passivation
Passivation is an optional cleaning process for stainless steel. It provides a bright surface and enhances corrosion resistance. Passivation can dissolve iron particles and other substances embedded in the surface of stainless steel during the production process. If not dissolved, these foreign particles can cause rusting, discoloration, or even electrochemical corrosion.
In theory, stainless steel's corrosion resistance is provided by a thin, invisible oxide layer completely covering the retaining ring surface, which also prevents further oxidation. Removing contaminants can prevent the destruction of the oxide layer, thereby achieving good corrosion resistance.
Phosphatized
The appearance is gray-black. Phosphate's corrosion resistance is better than black oxide, but not as good as cadmium plating or stainless steel. Phosphate cannot be applied to stainless steel.
Steam Degreasing/Ultrasonic Cleaning
This is the standard cleaning and surface treatment for all stainless steel. The process utilizes chloride solvents to remove oil and other organic substances from the material's surface. This solvent effectively removes grease from exposed surfaces of retainers or springs.
Flow solvent between each ring of the barrier ring via ultrasonic waves.
Deburring by Vibration/Manual burr removal
AlthoughRaleighAll circumferential surfaces and edges of the retaining ring are smooth, but due to the shearing operation, sharp corners are always present at the gap end. To remove the sharp corners and achieve coordination/The smooth surface finish allows for deburring via vibration of the retainer or manual deburring to meet your requirements.
