Material Type
Selecting the appropriate material for application requiresRaleighWe have a good understanding of the common materials used in flat wire 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 temperature range for operation.
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 strengths of the material.
SAE1060-107
SAE1060-1075High carbon hard-drawn spring steel is the standard material for buckle retainer rings. The hard-drawn carbon steel has no grade as 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 retainers and springs are typically supplied with an oil immersion surface treatment to provide protection during transportation and shelf storage.
•Carbon steel is highly magnetic and can exhibit a variety of colors, including blue, black, and gray.
Stainless steel
302Stainless Steel
302Stainless steel is the standard material used for spiral retainers. This material is widely utilized due to its combination of corrosion resistance and excellent 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 has a slight magnetic property. It cannot be hardened by heat treatment.
•302Silver gray.
316Stainless Steel
316Stainless steel and302Stainless steel has similar physical properties and heat resistance. Due to the presence of molybdenum, it exhibits higher corrosion resistance, particularly against pitting corrosion.316Stainless steel is commonly used in food, chemical, and seawater applications.
316Magnetic properties of stainless steel are less than302Stainless steel. But with302Stainless steel is similar; 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-like, but with higher tensile and yield strengths, it is suitable for special retaining ring applications. Resists fatigue and high stress conditions.17-7Its performance is superior to that of high-performance carbon steel.
Its elasticity is achieved throughCState precipitation hardening toCH900To achieve the status. Therefore, this material can withstand.343℃Retains elasticity at high temperatures without loss.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 presents as blue, brown, or silver, whereas the 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. Under normal circumstances,InconelX-750Through precipitation heat treatment to achieve spring condition. The alloy treated in this manner can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted to be in compliance with standardsMR-01-75（RC50Products processed with this hard tempering technique (high value) are used for spiral retaining rings and wave-shaped components./Compressed Springs1Hardening number requires a longer heat treatment than spring hardening, with lower tensile strength, but provides 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.
•Captive washers and springs made of this grade of chromium-nickel-iron alloy are blue./Silver gray, non-magnetic.
Copper
25Beryllium copper alloy
Typically used in its hardening state, this alloy, with its combination of low modulus of elasticity and high ultimate tensile strength, exhibits excellent spring properties. The alloy's physical properties are achieved through precipitation hardening. Compared to other copper alloys, beryllium copper alloys offer high strength and show minimal change in physical properties with temperature increase.
•Beryllium copper alloys are non-magnetic. Their conductivity is approximately that of phosphor 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. This material also does not have magnetic properties.
Surface Material Treatment
Turn black
This surface treatment provides a matte black finish. Black oxide is more commonly used for aesthetic purposes rather than for enhancing corrosion resistance.
Galvanized
Zinc is commonly applied to carbon steel to enhance product corrosion resistance. Compared to cadmium plating, zinc plating is often used as a more cost-effective and environmentally friendly alternative. Our standard zinc plating solution is:TypeVAndTypeVIAll meet the standards.RoHSThe coating thickness is determined by the service condition number (SC(No.) decision, the customer can opt for this. Galvanizing does not necessarily cover the parts between each turn of the multi-coil spring. 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 with carbon steel feature standard surface treatment. Oil provides corrosion resistance during transportation and daily storage. Oil immersion surface treatment should not be considered a permanent surface treatment.
Passivation
Passivation is an optional cleaning operation 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 these foreign particles are not dissolved, they can lead to rust, discoloration, and even electrochemical corrosion.
In theory, stainless steel's corrosion resistance is provided by a thin, invisible oxide layer that completely covers the retaining ring surface, which also prevents further oxidation. Removing contaminants can prevent damage to the oxide layer, thereby achieving good corrosion resistance.
Phosphatized
The appearance is gray-black. Phosphate's corrosion resistance is better than that of black oxides, but not as good as cadmium plating or stainless steel. Phosphate cannot be applied to stainless steel.
Steam De-greasing/Ultrasonic Cleaning
This is a standard cleaning and surface treatment for all stainless steel. The process utilizes chloride-based solvents to remove oil and other organic substances from the material's surface. This solvent effectively removes grease from the exposed surfaces of retainers or springs.
Flow solvent between each ring of the retainer using ultrasonic waves.
Vibration Deburring/Manual burr removal
AlthoughRaleighAll circumferential surfaces and edges of the retaining ring are smooth, but due to shearing operations, sharp corners are always present at the gap end. To remove the sharp corners and achieve coordination/Smooth surface finish; can be deburred by vibration or manual deburring on the retainer to meet your requirements.
