Material Type

Selecting the appropriate material for the 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 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 clip retaining rings. 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 retainers and springs are typically supplied with an oil immersion surface treatment to provide protection during transportation and storage on shelves.

•Carbon steel is highly magnetic and can exhibit various colors, including blue, black, and gray.

Stainless Steel

302Stainless Steel

302Stainless steel is the standard grade 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 has a slight magnetic property. It cannot be hardened by heat treatment.

•302Silver gray.

316Stainless Steel

316Stainless steel and302Stainless steel exhibits similar physical properties and heat resistance. Due to the presence of molybdenum, it boasts enhanced 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, like its counterparts, its magnetism increases as the wire is cold rolled.316Stainless steel cannot be hardened through heat treatment.

•316Silver gray.

17-7PHMartensitic Stainless Steel with Precipitation Hardening

The corrosion resistance of this alloy is302Stainless steel similar, but due to higher tensile and yield strength, it is suitable for special snap ring applications. Resists fatigue and high stress conditions.17-7Higher performance than high-performance carbon steel.

Its elasticity is achieved byCState sedimentation hardened toCH900To achieve the status. Therefore, this material can withstand.343℃High temperature 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, whereas controlled air heat treatment offers bright hues.

Super Alloy

InconelX-750

This nickel-chromium alloy is commonly used in high-temperature and corrosive environments. Two types of commonly used chromium-nickel iron alloys are described as follows. Generally speaking,InconelX-750Achieved spring condition through heat treatment precipitation. Alloys treated this way can withstand high371˚CTemperature. Corrosion Engineers Association(NACE)Permitted to comply with specificationsMR-01-75（RC50Products of this hard tempering process (high value) are used for spiral retaining rings and wave springs./Coiled Springs.1Hardening No. requires a longer heat treatment than spring hardening, with lower tensile strength but offers high538˚CTemperature protection.

Spring tempering and1The tempering process can be conducted in either open-air or controlled atmosphere tempering furnaces. Open-air heat treatment may result in oxidation, often leading to slight black residues. A controlled atmosphere during heat treatment eliminates oxidation issues, resulting in no residues on the products produced.

•Retainers and springs made from this grade of chrome-nickel iron alloy are blue./Silver gray and non-magnetic.

Copper

25Beryllium Copper Alloy

Typically used in its hard temper state, this alloy exhibits excellent spring properties due to the combination of low elastic modulus and high ultimate tensile strength. The alloy's physical properties are achieved through precipitation hardening. Compared to other copper alloys, beryllium copper offers high strength and shows minimal changes in its physical properties with temperature increases.

•Beryllium copper alloys are non-magnetic. Their conductivity is approximately equal to 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 lacks magnetic properties.

Material Surface Treatment

Turn black

This surface treatment provides a matte black finish. Black oxide is primarily used for aesthetic purposes rather than enhancing corrosion resistance.

Galvanized

Galvanized zinc is applied to carbon steel to enhance the product's corrosion resistance. Compared to cadmium plating, zinc galvanizing is often used as a cost-effective and environmentally friendly alternative. Our standard galvanizing solution includes:TypeVAndTypeVIAll meet the requirements.RoHSCoating thickness is determined by the service condition number (SC(No.) decision, the customer may proceed with this. Galvanizing does not necessarily cover the part 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 using carbon steel come with 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 operation for stainless steel. It provides a shiny 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 cause rusting, discoloration, and even electrochemical corrosion.

In theory, the corrosion resistance of stainless steel 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 employs chloride 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 the solvent between each turn of the retainer ring through ultrasonic action.

Vibration Deburring/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 harmony/Smooth surface finish, suitable for deburring by vibration or manual deburring of the retaining ring to meet your requirements.